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ALMA redshifts of millimeter-selected galaxies from the SPT survey: The redshift distribution of dusty star-forming galaxies
Using the Atacama Large Millimeter/submillimeter Array (ALMA), we have conducted a blind redshift survey in the 3 mm atmospheric transmission window for 26 strongly lensd dusty star-forming galaxies (DSFGs) selected with the South Pole Telescope (SPT). The sources were selected to have S_1.4mm>20...
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| creator | Weiss, A De Breuck, C Marrone, D P Vieira, J D Aguirre, J E Aird, K A Aravena, M Ashby, M L N Bayliss, M Benson, B A Bethermin, M Biggs, A D Bleem, L E Bock, J J Bothwell, M Bradford, C M Brodwin, M Carlstrom, J E Chang, C L Chapman, S C Crawford, T M Crites, A T de Haan, T Dobbs, M A Downes, T P Fassnacht, C D George, E M Gladders, M D Gonzalez, A H Greve, T R Halverson, N W Hezaveh, Y D High, F W Holder, G P Holzapfel, W L Hoover, S Hrubes, J D Husband, K Keisler, R Lee, A T Leitch, E M Lueker, M Luong-Van, D Malkan, M McIntyre, V McMahon, J J Mehl, J Menten, K M Meyer, S S Murphy, E J Padin, S Plagge, T Reichardt, C L Rest, A Rosenman, M Ruel, J Ruhl, J E Schaffer, K K Shirokoff, E Spilker, J S Stalder, B Staniszewski, Z Stark, A A Story, K Vanderlinde, K Welikala, N Williamson, R |
| description | Using the Atacama Large Millimeter/submillimeter Array (ALMA), we have conducted a blind redshift survey in the 3 mm atmospheric transmission window for 26 strongly lensd dusty star-forming galaxies (DSFGs) selected with the South Pole Telescope (SPT). The sources were selected to have S_1.4mm>20 mJy and a dust-like spectrum and, to remove low-z sources, not have bright radio (S_843MHz |
| doi_str_mv | 10.48550/arxiv.1303.2726 |
| format | article |
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The sources were selected to have S_1.4mm>20 mJy and a dust-like spectrum and, to remove low-z sources, not have bright radio (S_843MHz<6mJy) or far-infrared counterparts (S_100um<1 Jy, S_60um<200mJy). We robustly detect 44 line features in our survey, which we identify as redshifted emission lines of 12CO, 13CO, [CI], H2O, and H2O+. We find one or more spectral features in 23 sources yielding a ~90% detection rate for this survey; in 12 of these sources we detect multiple lines, while in 11 sources we detect only a single line. For the sources with only one detected line, we break the redshift degeneracy with additional spectroscopic observations if available, or infer the most likely line identification based on photometric data. This yields secure redshifts for ~70% of the sample. The three sources with no lines detected are tentatively placed in the redshift desert between 1.7<z<2.0. The resulting mean redshift of our sample is =3.5. This finding is in contrast to the redshift distribution of radio-identified DSFGs, which have a significantly lower mean redshift of =2.3 and for which only 10-15% of the population is expected to be at z>3. We discuss the effect of gravitational lensing on the redshift distribution and compare our measured redshift distribution to that of models in the literature.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1303.2726</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Atmospheric models ; Galaxies ; Galaxy distribution ; Gravitational effects ; Gravitational lenses ; Photometry ; Radio telescopes ; Red shift ; South Pole ; Star formation</subject><ispartof>arXiv.org, 2013-03</ispartof><rights>2013. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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The sources were selected to have S_1.4mm>20 mJy and a dust-like spectrum and, to remove low-z sources, not have bright radio (S_843MHz<6mJy) or far-infrared counterparts (S_100um<1 Jy, S_60um<200mJy). We robustly detect 44 line features in our survey, which we identify as redshifted emission lines of 12CO, 13CO, [CI], H2O, and H2O+. We find one or more spectral features in 23 sources yielding a ~90% detection rate for this survey; in 12 of these sources we detect multiple lines, while in 11 sources we detect only a single line. For the sources with only one detected line, we break the redshift degeneracy with additional spectroscopic observations if available, or infer the most likely line identification based on photometric data. This yields secure redshifts for ~70% of the sample. The three sources with no lines detected are tentatively placed in the redshift desert between 1.7<z<2.0. The resulting mean redshift of our sample is =3.5. This finding is in contrast to the redshift distribution of radio-identified DSFGs, which have a significantly lower mean redshift of =2.3 and for which only 10-15% of the population is expected to be at z>3. 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K</creatorcontrib><creatorcontrib>Welikala, N</creatorcontrib><creatorcontrib>Williamson, R</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>ProQuest Publicly Available Content database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Weiss, A</au><au>De Breuck, C</au><au>Marrone, D P</au><au>Vieira, J D</au><au>Aguirre, J E</au><au>Aird, K A</au><au>Aravena, M</au><au>Ashby, M L N</au><au>Bayliss, M</au><au>Benson, B A</au><au>Bethermin, M</au><au>Biggs, A D</au><au>Bleem, L E</au><au>Bock, J J</au><au>Bothwell, M</au><au>Bradford, C M</au><au>Brodwin, M</au><au>Carlstrom, J E</au><au>Chang, C L</au><au>Chapman, S C</au><au>Crawford, T M</au><au>Crites, A T</au><au>de Haan, T</au><au>Dobbs, M A</au><au>Downes, T P</au><au>Fassnacht, C D</au><au>George, E M</au><au>Gladders, M D</au><au>Gonzalez, A H</au><au>Greve, T R</au><au>Halverson, N W</au><au>Hezaveh, Y D</au><au>High, F W</au><au>Holder, G P</au><au>Holzapfel, W L</au><au>Hoover, S</au><au>Hrubes, J D</au><au>Husband, K</au><au>Keisler, R</au><au>Lee, A T</au><au>Leitch, E M</au><au>Lueker, M</au><au>Luong-Van, D</au><au>Malkan, M</au><au>McIntyre, V</au><au>McMahon, J J</au><au>Mehl, J</au><au>Menten, K M</au><au>Meyer, S S</au><au>Murphy, E J</au><au>Padin, S</au><au>Plagge, T</au><au>Reichardt, C L</au><au>Rest, A</au><au>Rosenman, M</au><au>Ruel, J</au><au>Ruhl, J E</au><au>Schaffer, K K</au><au>Shirokoff, E</au><au>Spilker, J S</au><au>Stalder, B</au><au>Staniszewski, Z</au><au>Stark, A A</au><au>Story, K</au><au>Vanderlinde, K</au><au>Welikala, N</au><au>Williamson, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>ALMA redshifts of millimeter-selected galaxies from the SPT survey: The redshift distribution of dusty star-forming galaxies</atitle><jtitle>arXiv.org</jtitle><date>2013-03-11</date><risdate>2013</risdate><eissn>2331-8422</eissn><abstract>Using the Atacama Large Millimeter/submillimeter Array (ALMA), we have conducted a blind redshift survey in the 3 mm atmospheric transmission window for 26 strongly lensd dusty star-forming galaxies (DSFGs) selected with the South Pole Telescope (SPT). The sources were selected to have S_1.4mm>20 mJy and a dust-like spectrum and, to remove low-z sources, not have bright radio (S_843MHz<6mJy) or far-infrared counterparts (S_100um<1 Jy, S_60um<200mJy). We robustly detect 44 line features in our survey, which we identify as redshifted emission lines of 12CO, 13CO, [CI], H2O, and H2O+. We find one or more spectral features in 23 sources yielding a ~90% detection rate for this survey; in 12 of these sources we detect multiple lines, while in 11 sources we detect only a single line. For the sources with only one detected line, we break the redshift degeneracy with additional spectroscopic observations if available, or infer the most likely line identification based on photometric data. This yields secure redshifts for ~70% of the sample. The three sources with no lines detected are tentatively placed in the redshift desert between 1.7<z<2.0. The resulting mean redshift of our sample is =3.5. This finding is in contrast to the redshift distribution of radio-identified DSFGs, which have a significantly lower mean redshift of =2.3 and for which only 10-15% of the population is expected to be at z>3. We discuss the effect of gravitational lensing on the redshift distribution and compare our measured redshift distribution to that of models in the literature.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1303.2726</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2013-03 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_proquest_journals_2082803523 |
| source | ProQuest Publicly Available Content database |
| subjects | Atmospheric models Galaxies Galaxy distribution Gravitational effects Gravitational lenses Photometry Radio telescopes Red shift South Pole Star formation |
| title | ALMA redshifts of millimeter-selected galaxies from the SPT survey: The redshift distribution of dusty star-forming galaxies |
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