Detection of molecular gas in a distant submillimetre galaxy at z = 4.76 with Australia Telescope Compact Array
Identifieur interne : 000829 ( Istex/Curation ); précédent : 000828; suivant : 000830Detection of molecular gas in a distant submillimetre galaxy at z = 4.76 with Australia Telescope Compact Array
Auteurs : K. E. K. Coppin [Royaume-Uni] ; S. C. Chapman ; Ian Smail ; A. M. Swinbank ; F. Walter [Allemagne] ; J. L. Wardlow ; A. Weiss [Allemagne] ; D. M. Alexander ; W. N. Brandt [États-Unis] ; H. Dannerbauer [France] ; C. De Breuck [Allemagne] ; M. Dickinson [États-Unis] ; J. S. Dunlop [Royaume-Uni] ; A. C. Edge ; B. H. C. Emonts [Australie] ; T. R. Greve [Danemark] ; M. Huynh [États-Unis] ; R. J. Ivison [Royaume-Uni] ; K. K. Knudsen [Allemagne] ; K. M. Menten [Allemagne] ; E. Schinnerer [Allemagne] ; P. P. Van Der Werf [Pays-Bas]Source :
- Monthly Notices of the Royal Astronomical Society: Letters [ 1745-3925 ] ; 2010-09.
Abstract
We have detected the CO(2–1) transition from the submillimetre galaxy (SMG) LESS J033229.4−275619 at z = 4.755 using the new Compact Array Broadband Backend system on the Australian Telescope Compact Array. These data have identified a massive gas reservoir available for star formation for the first time in an SMG at z ∼ 5. We use the luminosity and velocity width (full width at half-maximum, FWHM, of ≃160 km s−1) of the CO(2–1) line emission to constrain the gas and dynamical mass of Mgas ≃ 1.6 × 1010 M⊙ and Mdyn(<2 kpc) ≃ 5 × 1010 (0.25/sin2i) M⊙, respectively, similar to that observed for SMGs at lower redshifts of z ∼ 2–4, although we note that our observed CO FWHM is a factor of ∼3 narrower than typically seen in SMGs. Together with the stellar mass we estimate a total baryonic mass of Mbary ≃ 1 × 1011 M⊙, consistent with the dynamical mass for this young galaxy within the uncertainties. Dynamical and baryonic mass limits of high-redshift galaxies are useful tests of galaxy formation models: using the known z ∼ 4–5 SMGs as examples of massive baryonic systems, we find that their space density is consistent with that predicted by current galaxy formation models. In addition, these observations have helped to confirm that z∼ 4–5 SMGs possess the baryonic masses and gas consumption time-scales necessary to be the progenitors of the luminous old red galaxies seen at z ∼ 3. Our results provide a preview of the science that ALMA will enable on the formation and evolution of the earliest massive galaxies in the Universe.
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DOI: 10.1111/j.1745-3933.2010.00914.x
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K. E. K. Coppin<affiliation><mods:affiliation></mods:affiliation><wicri:noCountry code="syntax">???</wicri:noCountry></affiliation><affiliation wicri:level="1"><mods:affiliation>E-mail: kristen.coppin@durham.ac.uk</mods:affiliation><country wicri:rule="url">Royaume-Uni</country></affiliation><affiliation><mods:affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA</mods:affiliation><wicri:noCountry code="subField">0HA</wicri:noCountry></affiliation><affiliation><mods:affiliation>Institute for Computational Cosmology, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation><affiliation><mods:affiliation>Institute for Computational Cosmology, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation><affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation><affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation><affiliation><mods:affiliation>Institute for Computational Cosmology, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation>Le document en format XML
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Greve</name><affiliation wicri:level="1"><mods:affiliation>Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark</mods:affiliation><country xml:lang="fr">Danemark</country><wicri:regionArea>Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen</wicri:regionArea></affiliation></author><author><name sortKey="Huynh, M" sort="Huynh, M" uniqKey="Huynh M" first="M." last="Huynh">M. Huynh</name><affiliation wicri:level="1"><mods:affiliation>Infrared Processing and Analysis Center, MS220-6, California Institute of Technology, Pasadena, CA 91125, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Infrared Processing and Analysis Center, MS220-6, California Institute of Technology, Pasadena, CA 91125</wicri:regionArea></affiliation></author><author><name sortKey="Ivison, R J" sort="Ivison, R J" uniqKey="Ivison R" first="R. J." last="Ivison">R. J. Ivison</name><affiliation wicri:level="4"><mods:affiliation>SUPA, Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation><orgName type="university">Université d'Édimbourg</orgName><country>Royaume-Uni</country><placeName><settlement type="city">Édimbourg</settlement><region type="country">Écosse</region></placeName></affiliation><affiliation><mods:affiliation>UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation><wicri:noCountry code="subField">3HJ</wicri:noCountry></affiliation></author><author><name sortKey="Knudsen, K K" sort="Knudsen, K K" uniqKey="Knudsen K" first="K. K." last="Knudsen">K. K. Knudsen</name><affiliation wicri:level="1"><mods:affiliation>Argelander Institute for Astronomy, University of Bonn, Auf dem Hügel 71, D-53121 Bonn, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Argelander Institute for Astronomy, University of Bonn, Auf dem Hügel 71, D-53121 Bonn</wicri:regionArea></affiliation></author><author><name sortKey="Menten, K M" sort="Menten, K M" uniqKey="Menten K" first="K. M." last="Menten">K. M. Menten</name><affiliation wicri:level="1"><mods:affiliation>Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D-53121, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D-53121</wicri:regionArea></affiliation></author><author><name sortKey="Schinnerer, E" sort="Schinnerer, E" uniqKey="Schinnerer E" first="E." last="Schinnerer">E. Schinnerer</name><affiliation wicri:level="1"><mods:affiliation>Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117</wicri:regionArea></affiliation></author><author><name sortKey="Van Der Werf, P P" sort="Van Der Werf, P P" uniqKey="Van Der Werf P" first="P. P." last="Van Der Werf">P. P. Van Der Werf</name><affiliation wicri:level="1"><mods:affiliation>Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, the Netherlands</mods:affiliation><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:2A749F304E1F176ECAFBE11C76F7A96672043380</idno><date when="2010" year="2010">2010</date><idno type="doi">10.1111/j.1745-3933.2010.00914.x</idno><idno type="url">https://api.istex.fr/document/2A749F304E1F176ECAFBE11C76F7A96672043380/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000829</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000829</idno><idno type="wicri:Area/Istex/Curation">000829</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Detection of molecular gas in a distant submillimetre galaxy at z = 4.76 with Australia Telescope Compact Array</title><author><name sortKey="Coppin, K E K" sort="Coppin, K E K" uniqKey="Coppin K" first="K. E. K." last="Coppin">K. E. K. Coppin</name><affiliation><mods:affiliation>Institute for Computational Cosmology, Durham University, South Road, Durham DH1 3LE</mods:affiliation></affiliation><affiliation wicri:level="1"><mods:affiliation>E-mail: kristen.coppin@durham.ac.uk</mods:affiliation><country wicri:rule="url">Royaume-Uni</country></affiliation><affiliation><mods:affiliation></mods:affiliation><wicri:noCountry code="syntax">???</wicri:noCountry></affiliation><affiliation wicri:level="1"><mods:affiliation>E-mail: kristen.coppin@durham.ac.uk</mods:affiliation><country wicri:rule="url">Royaume-Uni</country></affiliation></author><author><name sortKey="Chapman, S C" sort="Chapman, S C" uniqKey="Chapman S" first="S. C." last="Chapman">S. C. Chapman</name><affiliation><mods:affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA</mods:affiliation><wicri:noCountry code="subField">0HA</wicri:noCountry></affiliation></author><author><name sortKey="Smail, Ian" sort="Smail, Ian" uniqKey="Smail I" first="Ian" last="Smail">Ian Smail</name><affiliation><mods:affiliation>Institute for Computational Cosmology, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation></author><author><name sortKey="Swinbank, A M" sort="Swinbank, A M" uniqKey="Swinbank A" first="A. M." last="Swinbank">A. M. Swinbank</name><affiliation><mods:affiliation>Institute for Computational Cosmology, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation></author><author><name sortKey="Walter, F" sort="Walter, F" uniqKey="Walter F" first="F." last="Walter">F. Walter</name><affiliation wicri:level="1"><mods:affiliation>Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117</wicri:regionArea></affiliation></author><author><name sortKey="Wardlow, J L" sort="Wardlow, J L" uniqKey="Wardlow J" first="J. L." last="Wardlow">J. L. Wardlow</name><affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation></author><author><name sortKey="Weiss, A" sort="Weiss, A" uniqKey="Weiss A" first="A." last="Weiss">A. Weiss</name><affiliation wicri:level="1"><mods:affiliation>Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D-53121, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D-53121</wicri:regionArea></affiliation></author><author><name sortKey="Alexander, D M" sort="Alexander, D M" uniqKey="Alexander D" first="D. M." last="Alexander">D. M. Alexander</name><affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation></author><author><name sortKey="Brandt, W N" sort="Brandt, W N" uniqKey="Brandt W" first="W. N." last="Brandt">W. N. Brandt</name><affiliation wicri:level="1"><mods:affiliation>Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802</wicri:regionArea></affiliation></author><author><name sortKey="Dannerbauer, H" sort="Dannerbauer, H" uniqKey="Dannerbauer H" first="H." last="Dannerbauer">H. Dannerbauer</name><affiliation wicri:level="1"><mods:affiliation>Laboratoire AIM, CEA/DSM-CNRS-Universit Paris Diderot, DAPNIA/Service d'Astrophysique, CEA Saclay, Orme de Merisiers, 91191 Gif-sur-Yvette, Cedex, France</mods:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire AIM, CEA/DSM-CNRS-Universit Paris Diderot, DAPNIA/Service d'Astrophysique, CEA Saclay, Orme de Merisiers, 91191 Gif-sur-Yvette, Cedex</wicri:regionArea></affiliation></author><author><name sortKey="De Breuck, C" sort="De Breuck, C" uniqKey="De Breuck C" first="C." last="De Breuck">C. De Breuck</name><affiliation wicri:level="1"><mods:affiliation>European Southern Observatory, Karl-Schwarzschild Strasse, 85748 Garching bei München, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>European Southern Observatory, Karl-Schwarzschild Strasse, 85748 Garching bei München</wicri:regionArea></affiliation></author><author><name sortKey="Dickinson, M" sort="Dickinson, M" uniqKey="Dickinson M" first="M." last="Dickinson">M. Dickinson</name><affiliation wicri:level="1"><mods:affiliation>National Optical Astronomy Observatory, PO Box 26732, Tucson, AZ 85726, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>National Optical Astronomy Observatory, PO Box 26732, Tucson, AZ 85726</wicri:regionArea></affiliation></author><author><name sortKey="Dunlop, J S" sort="Dunlop, J S" uniqKey="Dunlop J" first="J. S." last="Dunlop">J. S. Dunlop</name><affiliation wicri:level="4"><mods:affiliation>SUPA, Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation><orgName type="university">Université d'Édimbourg</orgName><country>Royaume-Uni</country><placeName><settlement type="city">Édimbourg</settlement><region type="country">Écosse</region></placeName></affiliation></author><author><name sortKey="Edge, A C" sort="Edge, A C" uniqKey="Edge A" first="A. C." last="Edge">A. C. Edge</name><affiliation><mods:affiliation>Institute for Computational Cosmology, Durham University, South Road, Durham DH1 3LE</mods:affiliation><wicri:noCountry code="subField">3LE</wicri:noCountry></affiliation></author><author><name sortKey="Emonts, B H C" sort="Emonts, B H C" uniqKey="Emonts B" first="B. H. C." last="Emonts">B. H. C. Emonts</name><affiliation wicri:level="1"><mods:affiliation>Australia Telescope National Facility, CSIRO Astronomy and Space Science, PO Box 76, Epping, NSW 1710, Australia</mods:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australia Telescope National Facility, CSIRO Astronomy and Space Science, PO Box 76, Epping, NSW 1710</wicri:regionArea></affiliation></author><author><name sortKey="Greve, T R" sort="Greve, T R" uniqKey="Greve T" first="T. R." last="Greve">T. R. Greve</name><affiliation wicri:level="1"><mods:affiliation>Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark</mods:affiliation><country xml:lang="fr">Danemark</country><wicri:regionArea>Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen</wicri:regionArea></affiliation></author><author><name sortKey="Huynh, M" sort="Huynh, M" uniqKey="Huynh M" first="M." last="Huynh">M. Huynh</name><affiliation wicri:level="1"><mods:affiliation>Infrared Processing and Analysis Center, MS220-6, California Institute of Technology, Pasadena, CA 91125, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Infrared Processing and Analysis Center, MS220-6, California Institute of Technology, Pasadena, CA 91125</wicri:regionArea></affiliation></author><author><name sortKey="Ivison, R J" sort="Ivison, R J" uniqKey="Ivison R" first="R. J." last="Ivison">R. J. Ivison</name><affiliation wicri:level="4"><mods:affiliation>SUPA, Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation><orgName type="university">Université d'Édimbourg</orgName><country>Royaume-Uni</country><placeName><settlement type="city">Édimbourg</settlement><region type="country">Écosse</region></placeName></affiliation><affiliation><mods:affiliation>UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation></affiliation></author><author><name sortKey="Knudsen, K K" sort="Knudsen, K K" uniqKey="Knudsen K" first="K. K." last="Knudsen">K. K. Knudsen</name><affiliation wicri:level="1"><mods:affiliation>Argelander Institute for Astronomy, University of Bonn, Auf dem Hügel 71, D-53121 Bonn, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Argelander Institute for Astronomy, University of Bonn, Auf dem Hügel 71, D-53121 Bonn</wicri:regionArea></affiliation></author><author><name sortKey="Menten, K M" sort="Menten, K M" uniqKey="Menten K" first="K. M." last="Menten">K. M. Menten</name><affiliation wicri:level="1"><mods:affiliation>Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D-53121, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D-53121</wicri:regionArea></affiliation></author><author><name sortKey="Schinnerer, E" sort="Schinnerer, E" uniqKey="Schinnerer E" first="E." last="Schinnerer">E. Schinnerer</name><affiliation wicri:level="1"><mods:affiliation>Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117</wicri:regionArea></affiliation></author><author><name sortKey="Van Der Werf, P P" sort="Van Der Werf, P P" uniqKey="Van Der Werf P" first="P. P." last="Van Der Werf">P. P. Van Der Werf</name><affiliation wicri:level="1"><mods:affiliation>Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, the Netherlands</mods:affiliation><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Monthly Notices of the Royal Astronomical Society: Letters</title><title level="j" type="abbrev">MNRAS</title><idno type="ISSN">1745-3925</idno><idno type="eISSN">1745-3933</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2010-09">2010-09</date><biblScope unit="volume">407</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="L103">L103</biblScope><biblScope unit="page" to="L107">L107</biblScope></imprint><idno type="ISSN">1745-3925</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1745-3925</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract">We have detected the CO(2–1) transition from the submillimetre galaxy (SMG) LESS J033229.4−275619 at z = 4.755 using the new Compact Array Broadband Backend system on the Australian Telescope Compact Array. These data have identified a massive gas reservoir available for star formation for the first time in an SMG at z ∼ 5. We use the luminosity and velocity width (full width at half-maximum, FWHM, of ≃160 km s−1) of the CO(2–1) line emission to constrain the gas and dynamical mass of Mgas ≃ 1.6 × 1010 M⊙ and Mdyn(<2 kpc) ≃ 5 × 1010 (0.25/sin2i) M⊙, respectively, similar to that observed for SMGs at lower redshifts of z ∼ 2–4, although we note that our observed CO FWHM is a factor of ∼3 narrower than typically seen in SMGs. Together with the stellar mass we estimate a total baryonic mass of Mbary ≃ 1 × 1011 M⊙, consistent with the dynamical mass for this young galaxy within the uncertainties. Dynamical and baryonic mass limits of high-redshift galaxies are useful tests of galaxy formation models: using the known z ∼ 4–5 SMGs as examples of massive baryonic systems, we find that their space density is consistent with that predicted by current galaxy formation models. In addition, these observations have helped to confirm that z∼ 4–5 SMGs possess the baryonic masses and gas consumption time-scales necessary to be the progenitors of the luminous old red galaxies seen at z ∼ 3. Our results provide a preview of the science that ALMA will enable on the formation and evolution of the earliest massive galaxies in the Universe.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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