{"id":13232,"date":"2016-09-22T14:00:11","date_gmt":"2016-09-22T18:00:11","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=13232"},"modified":"2016-09-22T02:18:03","modified_gmt":"2016-09-22T06:18:03","slug":"eso-alma-sees-fast-star-formation-in-very-early-high-mass-galaxies","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=13232","title":{"rendered":"ESO: ALMA sees fast star formation in very early high-mass galaxies"},"content":{"rendered":"<p>Here&#8217;s a new\u00a0report from the European Southern Observatory (<a href=\"https:\/\/www.eso.org\/public\/news\/eso1633\/?lang\" target=\"_blank\">ESO<\/a>):<\/p>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.eso.org\/public\/news\/eso1633\/?lang\" target=\"_d\">ALMA Explores the Hubble Ultra Deep Field<\/a><\/strong><\/p>\n<p>International teams of astronomers have used the <a href=\"http:\/\/www.almaobservatory.org\/\" target=\"_blank\">Atacama Large Millimeter\/submillimeter Array<\/a> (ALMA) to explore the distant corner of the Universe first revealed in the iconic images of the Hubble Ultra Deep Field (HUDF). These new ALMA observations are significantly deeper and sharper than previous surveys at millimetre wavelengths. They clearly show how the rate of star formation in young galaxies is closely related to their total mass in stars. They also trace the previously unknown abundance of star-forming gas at different points in time, providing new insights into the \u201cGolden Age\u201d of galaxy formation approximately 10 billion years ago.<\/p>\n<p><figure id=\"attachment_13233\" aria-describedby=\"caption-attachment-13233\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.eso.org\/public\/images\/eso1633a\/\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13233\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13233\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633a1.jpg\" data-orig-size=\"700,640\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ALMA (ESO\/NAOJ\/NRAO)\/NASA\/ESA\/J.&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;This image combines a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of this field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area.&quot;,&quot;created_timestamp&quot;:&quot;1474574400&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;ALMA probes the Hubble Ultra Deep Field&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ALMA probes the Hubble Ultra Deep Field\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;This image combines a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of this field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633a1.jpg\" class=\"wp-image-13233\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633a1.jpg\" alt=\"This image combines a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of this field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area.\" width=\"500\" height=\"457\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633a1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633a1-300x274.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13233\" class=\"wp-caption-text\"><em>This image combines a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of this field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area. [<a href=\"https:\/\/www.eso.org\/public\/images\/eso1633a\/\" target=\"_blank\">Larger images<\/a>]<\/em><\/figcaption><\/figure>The new ALMA results will be published in a series of papers appearing in the Astrophysical Journal and Monthly Notices of the Royal Astronomical Society. These results are also among those being presented this week at the <em>Half a Decade of ALMA<\/em> conference in Palm Springs, California, USA.<\/p>\n<p>In 2004 the Hubble Ultra Deep Field images \u2014 pioneering deep-field observations with the <a href=\"http:\/\/www.spacetelescope.org\/\" target=\"_blank\">NASA\/ESA Hubble Space Telescope<\/a> \u2014 were <a href=\"https:\/\/www.spacetelescope.org\/images\/heic0406a\/\">published<\/a>. These spectacular pictures probed more deeply than ever before and revealed a menagerie of galaxies stretching back to less than a billion years after the Big Bang. The area was observed several times by Hubble and many other telescopes, resulting in the <a href=\"https:\/\/www.spacetelescope.org\/images\/heic1219b\/\" target=\"_blank\">deepest view<\/a> of the Universe to date.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/8IFqMRxDuV4?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p dir=\"ltr\" style=\"padding-left: 30px;\"><em>This video sequence combines a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of this field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies.\u00a0<\/em><em>This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area. \u00a0Credit<strong>:\u00a0<\/strong>NASA\/ESA\/ESO\/J. Dunlop<\/em><\/p>\n<p>Astronomers using ALMA have now surveyed this seemingly unremarkable, but heavily studied, window into the distant Universe for the first time both deeply and sharply in the millimetre range of wavelengths <a href=\"#1\">[1]<\/a>. This allows them to see the faint glow from gas clouds and also the emission from warm dust in galaxies in the early Universe.<\/p>\n<p>ALMA has observed the HUDF for a total of around 50 hours up to now. This is the largest amount of ALMA observing time spent on one area of the sky so far.<\/p>\n<p><figure id=\"attachment_13234\" aria-describedby=\"caption-attachment-13234\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.eso.org\/public\/images\/eso1633b\/\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13234\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13234\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633b1.jpg\" data-orig-size=\"700,640\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;ALMA (ESO\/NAOJ\/NRAO)\/NASA\/ESA\/J.&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;These cutout images are from a combination of a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of the field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area.&quot;,&quot;created_timestamp&quot;:&quot;1474574400&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;ALMA probes the Hubble Ultra Deep Field&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ALMA probes the Hubble Ultra Deep Field\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;These cutout images are from a combination of a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of the field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633b1.jpg\" class=\"wp-image-13234\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633b1.jpg\" alt=\"These cutout images are from a combination of a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of the field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area.\" width=\"500\" height=\"457\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633b1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633b1-300x274.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13234\" class=\"wp-caption-text\"><em>These cutout images are from a combination of a background picture taken by the NASA\/ESA Hubble Space Telescope (blue\/green) with a new very deep ALMA view of the field (orange, marked with circles). All the objects that ALMA sees appear to be massive star-forming galaxies. This image is based on the ALMA survey by J. Dunlop and colleagues, covering the full HUDF area. [<a href=\"https:\/\/www.eso.org\/public\/images\/eso1633b\/\" target=\"_blank\">Larger images<\/a>.]<\/em><\/figcaption><\/figure>One team led by Jim Dunlop (University of Edinburgh, United Kingdom) used ALMA to obtain the first deep, homogeneous ALMA image of a region as large as the HUDF. This data allowed them to clearly match up the galaxies that they detected with objects already seen with Hubble and other facilities.<\/p>\n<p>This study showed clearly for the first time that the stellar mass of a galaxy is the best predictor of star formation rate in the high redshift Universe. They detected essentially all of the high-mass galaxies <a href=\"#2\">[2]<\/a> and virtually nothing else.<\/p>\n<p><figure id=\"attachment_13235\" aria-describedby=\"caption-attachment-13235\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.eso.org\/public\/images\/eso1633c\/\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13235\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13235\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633c1.jpg\" data-orig-size=\"700,640\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;NASA, ESA, G. Illingworth, D. Ma&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;This image, called the Hubble eXtreme Deep Field (XDF), combines Hubble observations taken over the past decade of a small patch of sky in the constellation of Fornax. With a total of over two million seconds of exposure time, it is the deepest image of the Universe ever made, combining data from previous images including the Hubble Ultra Deep Field (taken in 2003 and 2004) and Hubble Ultra Deep Field Infrared (2009). The image covers a region less than a tenth of the width of the full Moon across, making it just a 30 millionth of the whole sky. Yet even in this tiny fraction of the sky, the long exposure reveals about 5500 galaxies, some of them so distant that we see them when the Universe was less than 5% of its current age. The Hubble eXtreme Deep Field image contains several of the most distant objects ever identified.&quot;,&quot;created_timestamp&quot;:&quot;1474574400&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;The Hubble eXtreme Deep Field&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"The Hubble eXtreme Deep Field\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;This image, called the Hubble eXtreme Deep Field (XDF), combines Hubble observations taken over the past decade of a small patch of sky in the constellation of Fornax. With a total of over two million seconds of exposure time, it is the deepest image of the Universe ever made, combining data from previous images including the Hubble Ultra Deep Field (taken in 2003 and 2004) and Hubble Ultra Deep Field Infrared (2009). The image covers a region less than a tenth of the width of the full Moon across, making it just a 30 millionth of the whole sky. Yet even in this tiny fraction of the sky, the long exposure reveals about 5500 galaxies, some of them so distant that we see them when the Universe was less than 5% of its current age. The Hubble eXtreme Deep Field image contains several of the most distant objects ever identified.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633c1.jpg\" class=\"wp-image-13235\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633c1.jpg\" alt=\"This image, called the Hubble eXtreme Deep Field (XDF), combines Hubble observations taken over the past decade of a small patch of sky in the constellation of Fornax. With a total of over two million seconds of exposure time, it is the deepest image of the Universe ever made, combining data from previous images including the Hubble Ultra Deep Field (taken in 2003 and 2004) and Hubble Ultra Deep Field Infrared (2009). The image covers a region less than a tenth of the width of the full Moon across, making it just a 30 millionth of the whole sky. Yet even in this tiny fraction of the sky, the long exposure reveals about 5500 galaxies, some of them so distant that we see them when the Universe was less than 5% of its current age. The Hubble eXtreme Deep Field image contains several of the most distant objects ever identified.\" width=\"500\" height=\"457\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633c1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633c1-300x274.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13235\" class=\"wp-caption-text\"><em>This image, called the Hubble eXtreme Deep Field (XDF), combines Hubble observations taken over the past decade of a small patch of sky in the constellation of Fornax. With a total of over two million seconds of exposure time, it is the deepest image of the Universe ever made, combining data from previous images including the Hubble Ultra Deep Field (taken in 2003 and 2004) and Hubble Ultra Deep Field Infrared (2009). The image covers a region less than a tenth of the width of the full Moon across, making it just a 30 millionth of the whole sky. Yet even in this tiny fraction of the sky, the long exposure reveals about 5500 galaxies, some of them so distant that we see them when the Universe was less than 5% of its current age. The Hubble eXtreme Deep Field image contains several of the most distant objects ever identified. [<a href=\"https:\/\/www.eso.org\/public\/images\/eso1633c\/\" target=\"_blank\">Larger images.<\/a>]<\/em><\/figcaption><\/figure>Jim Dunlop, lead author on the deep imaging paper sums up its importance:<\/p>\n<p style=\"padding-left: 30px;\"><em> \u201cThis is a breakthrough result. For the first time we are properly connecting the visible and ultraviolet light view of the distant Universe from Hubble and far-infrared\/millimetre views of the Universe from ALMA.\u201d<\/em><\/p>\n<p>The second team, led by Manuel Aravena of the N\u00facleo de Astronom\u00eda, Universidad Diego Portales, Santiago, Chile, and Fabian Walter of the Max Planck Institute for Astronomy in Heidelberg, Germany, conducted a deeper search across about one sixth of the total HUDF <a href=\"#3\">[3]<\/a>.<\/p>\n<figure id=\"attachment_13236\" aria-describedby=\"caption-attachment-13236\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.eso.org\/public\/images\/eso1633d\/\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13236\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13236\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633d1.jpg\" data-orig-size=\"700,666\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;B. Saxton (NRAO\/AUI\/NSF); ALMA (&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;ALMA surveyed the Hubble Ultra Deep Field, uncovering new details of the star-forming history of the Universe. This close-up image reveals one such galaxy (orange), rich in carbon monoxide, showing it is primed for star formation. The blue features are galaxies imaged by Hubble. This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area.&quot;,&quot;created_timestamp&quot;:&quot;1474574400&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;ALMA deep view of part of the Hubble Ultra Deep Field&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ALMA deep view of part of the Hubble Ultra Deep Field\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;ALMA surveyed the Hubble Ultra Deep Field, uncovering new details of the star-forming history of the Universe. This close-up image reveals one such galaxy (orange), rich in carbon monoxide, showing it is primed for star formation. The blue features are galaxies imaged by Hubble. This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633d1.jpg\" class=\"wp-image-13236\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633d1.jpg\" alt=\"ALMA surveyed the Hubble Ultra Deep Field, uncovering new details of the star-forming history of the Universe. This close-up image reveals one such galaxy (orange), rich in carbon monoxide, showing it is primed for star formation. The blue features are galaxies imaged by Hubble. This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area.\" width=\"500\" height=\"476\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633d1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633d1-300x285.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13236\" class=\"wp-caption-text\"><em>ALMA surveyed the Hubble Ultra Deep Field, uncovering new details of the star-forming history of the Universe. This close-up image reveals one such galaxy (orange), rich in carbon monoxide, showing it is primed for star formation. The blue features are galaxies imaged by Hubble. This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area. [<a href=\"https:\/\/www.eso.org\/public\/images\/eso1633d\/\" target=\"_blank\">Larger images<\/a>.]<\/em><\/figcaption><\/figure>\n<p style=\"padding-left: 30px;\"><em>\u201cWe conducted the first fully blind, three-dimensional search for cool gas in the early Universe,\u201d said Chris Carilli, an astronomer with the National Radio Astronomy Observatory (NRAO) in Socorro, New Mexico, USA and member of the research team. \u201cThrough this, we discovered a population of galaxies that is not clearly evident in any other deep surveys of the sky.\u201d <a href=\"#4\">[4]<\/a><\/em><\/p>\n<p>Some of the new ALMA observations were specifically tailored to detect galaxies that are rich in carbon monoxide, indicating regions primed for star formation. Even though these molecular gas reservoirs give rise to the star formation activity in galaxies, they are often very hard to see with Hubble. ALMA can therefore reveal the \u201cmissing half\u201d of the galaxy formation and evolution process.<\/p>\n<figure id=\"attachment_13237\" aria-describedby=\"caption-attachment-13237\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.eso.org\/public\/images\/eso1633e\/\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13237\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13237\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633e1.jpg\" data-orig-size=\"700,519\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;B. Saxton (NRAO\/AUI\/NSF); ALMA (&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;A trove of galaxies, rich in carbon monoxide (indicating star-forming potential) were imaged by ALMA (orange) in the Hubble Ultra Deep Field. The blue features are galaxies imaged by Hubble.This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area.&quot;,&quot;created_timestamp&quot;:&quot;1474574400&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;ALMA deep view of part of the Hubble Ultra Deep Field&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ALMA deep view of part of the Hubble Ultra Deep Field\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;A trove of galaxies, rich in carbon monoxide (indicating star-forming potential) were imaged by ALMA (orange) in the Hubble Ultra Deep Field. The blue features are galaxies imaged by Hubble.This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633e1.jpg\" class=\"wp-image-13237\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633e1.jpg\" alt=\"A trove of galaxies, rich in carbon monoxide (indicating star-forming potential) were imaged by ALMA (orange) in the Hubble Ultra Deep Field. The blue features are galaxies imaged by Hubble.This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area.\" width=\"500\" height=\"371\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633e1.jpg 700w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1633e1-300x222.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-13237\" class=\"wp-caption-text\"><em>A trove of galaxies, rich in carbon monoxide (indicating star-forming potential) were imaged by ALMA (orange) in the Hubble Ultra Deep Field. The blue features are galaxies imaged by Hubble.This image is based on the very deep ALMA survey by Manuel Aravena, Fabian Walter and colleagues, covering about one sixth of the full HUDF area. [<a href=\"https:\/\/www.eso.org\/public\/images\/eso1633e\/\" target=\"_blank\">Larger image<\/a>s]<\/em><\/figcaption><\/figure>\n<p style=\"padding-left: 30px;\"><em>\u201cThe new ALMA results imply a rapidly rising gas content in galaxies as we look back further in time,\u201d adds lead author of two of the papers, Manuel Aravena (N\u00facleo de Astronom\u00eda, Universidad Diego Portales, Santiago, Chile). \u201cThis increasing gas content is likely the root cause for the remarkable increase in star formation rates during the peak epoch of galaxy formation, some 10 billion years ago.\u201d<\/em><\/p>\n<p>The results presented today are just the start of a series of future observations to probe the distant Universe with ALMA. For example, a planned 150-hour observing campaign of the HUDF will further illuminate the star-forming potential history of the Universe.<\/p>\n<p style=\"padding-left: 30px;\"><em>\u201cBy supplementing our understanding of this missing star-forming material, the forthcoming ALMA Large Program will complete our view of the galaxies in the iconic Hubble Ultra Deep Field,\u201d concludes Fabian Walter.<\/em><\/p>\n<p><strong>Notes<\/strong><\/p>\n<p><a name=\"1\"><\/a>[1] Astronomers specifically selected the area of study in the HUDF, a region of space in the faint southern constellation of\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Fornax\" target=\"_blank\">Fornax <\/a>(The Furnace), so ground-based telescopes in the southern hemisphere, like ALMA, could probe the region, expanding our knowledge about the very distant Universe.<\/p>\n<p>Probing the deep, but optically invisible, Universe was one of the primary science goals for ALMA.<\/p>\n<p><a name=\"2\"><\/a>[2] In this context \u201chigh mass\u201d means galaxies with stellar masses greater than 20 billion times that of the Sun ( 2\u00a0\u00d7 1010solar masses). For comparison, the Milky Way is a large galaxy and has a mass of around 100 billion solar masses.<\/p>\n<p><a name=\"3\"><\/a>[3] This region of sky is about seven hundred times smaller than the area of the disc of the full Moon as seen from Earth. One of the most startling aspects of the HUDF was the vast number of galaxies found in such a tiny fraction of the sky.<\/p>\n<p><a name=\"4\"><\/a>[4] ALMA\u2019s ability to see a completely different portion of the electromagnetic spectrum from Hubble allows astronomers to study a different class of astronomical objects, such as massive star-forming clouds, as well as objects that are otherwise too faint to observe in visible light, but visible at millimetre wavelengths.<\/p>\n<p>The search is referred to as \u201cblind\u201d as it was not focussed on any particular object.<\/p>\n<p>The new ALMA observations of the HUDF include two distinct, yet complementary types of data: continuum observations, which reveal dust emission and star formation, and a spectral emission line survey, which looks at the cold molecular gas fueling star formation. The second survey is particularly valuable because it includes information about the degree to which light from distant objects has been redshifted by the expansion of the Universe. Greater redshift means that an object is further away and seen farther back in time. This allows astronomers to create a three-dimensional map of star-forming gas as it evolves over cosmic time.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here&#8217;s a new\u00a0report from the European Southern Observatory (ESO): ALMA Explores the Hubble Ultra Deep Field International teams of astronomers have used the Atacama Large Millimeter\/submillimeter Array (ALMA) to explore the distant corner of the Universe first revealed in the iconic images of the Hubble Ultra Deep Field (HUDF). These new ALMA observations are significantly &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=13232\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">ESO: ALMA sees fast star formation in very early high-mass galaxies<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[12],"tags":[],"class_list":["post-13232","post","type-post","status-publish","format-standard","hentry","category-astronomy"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-3rq","jetpack-related-posts":[{"id":15246,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15246","url_meta":{"origin":13232,"position":0},"title":"ESO: The Very Large Telescope looks deeper into the Hubble Ultra Deep Field","author":"TopSpacer","date":"November 29, 2017","format":false,"excerpt":"The latest ESO (European Southern Observatory) report: MUSE Probes Uncharted Depths of Hubble Ultra Deep Field Deepest ever spectroscopic survey completed Astronomers using the MUSE instrument on ESO\u2019s Very Large Telescope in Chile have conducted the deepest spectroscopic survey ever. They focused on the Hubble Ultra Deep Field, measuring distances\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/11\/eso1738a1-1012x1024.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14835,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14835","url_meta":{"origin":13232,"position":1},"title":"ESO: Radio telescope array detects turbulent reservoirs of cold gas in starburst galaxies","author":"TopSpacer","date":"August 30, 2017","format":false,"excerpt":"The latest\u00a0ESO\u00a0(European Southern Observatory) report: ALMA Finds Huge Hidden Reservoirs of Turbulent Gas in Distant Galaxies ALMA has been used to detect turbulent reservoirs of cold gas surrounding distant starburst galaxies. By detecting CH+ for the first time in the distant Universe this research opens up a new window of\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/08\/eso1727a1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13217,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13217","url_meta":{"origin":13232,"position":2},"title":"ESO: Secrets of a giant space blob uncovered","author":"TopSpacer","date":"September 21, 2016","format":false,"excerpt":"A new report from the European Southern Observatory (ESO): ALMA Uncovers Secrets of Giant Space Blob\u00a0 An international team using ALMA, along with ESO\u2019s Very Large Telescope and other telescopes, has discovered the true nature of a rare object in the distant Universe called a Lyman-alpha Blob. Up to now\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"This rendering shows a snapshot from a cosmological simulation of a Lyman-alpha Blob similar to LAB-1. This simulation tracks the evolution of gas and dark matter using one of the latest models for galaxy formation running on the NASA Pleiades supercomputer. This view shows the distribution of gas within the dark matter halo, colour coded so that cold gas (mainly neutral hydrogen) appears red and hot gas appears white. Embedded at the centre of this system are two strongly star-forming galaxies, but these are surrounded by hot gas and many smaller satellite galaxies that appear as small red clumps of gas here. Lyman-alpha photons escape from the central galaxies and scatter off the cold gas associated with these satellites to give rise to an extended Lyman-alpha Blob.","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/09\/eso1632a1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14022,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14022","url_meta":{"origin":13232,"position":3},"title":"ESO: ALMA observes galaxy formed when the universe was very young","author":"TopSpacer","date":"March 8, 2017","format":false,"excerpt":"The latest report from\u00a0ESO\u00a0(European Southern Observatory): Ancient Stardust Sheds Light on the First Stars Most distant object ever observed by ALMA Astronomers have used ALMA to detect a huge mass of glowing stardust in a galaxy seen when the Universe was only four percent of its present age. This galaxy\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/03\/eso1708a1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":10719,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10719","url_meta":{"origin":13232,"position":4},"title":"ESO: ALMA antenna array obtains detailed view of star making in distant universe","author":"TopSpacer","date":"June 8, 2015","format":false,"excerpt":"Here is a new article from\u00a0ESO\u00a0(European Southern Observatory): Most Detailed View Ever of Star Formation in the Distant Universe ALMA\u2019s Long Baseline Campaign has produced a spectacularly detailed image of a distant galaxy being gravitationally lensed. The image shows a magnified view of the galaxy\u2019s star-forming regions, the likes of\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"eso1522a[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/06\/eso1522a1-1024x374.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":24144,"url":"https:\/\/hobbyspace.com\/Blog\/?p=24144","url_meta":{"origin":13232,"position":5},"title":"ESO: Galactic star formation seen vividly in VLT\/ALMA images","author":"TopSpacer","date":"July 16, 2021","format":false,"excerpt":"A new report from the European Southern Observatory (ESO): Galactic fireworks: new ESO images reveal stunning features of nearby galaxies A team of astronomers has released new observations of nearby galaxies that resemble colourful cosmic fireworks. The images, obtained with the European Southern Observatory\u2019s Very Large Telescope (ESO\u2019s VLT), show\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2021\/07\/eso2110a1-500x304.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13232"}],"version-history":[{"count":2,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13232\/revisions"}],"predecessor-version":[{"id":13239,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13232\/revisions\/13239"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}