Detection of molecular gas in a distant submillimetre galaxy at z= 4.76 with Australia Telescope Compact Array
Identifieur interne : 007309 ( Main/Exploration ); précédent : 007308; suivant : 007310Detection 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 ] ; 2010-09-01.
English descriptors
- KwdEn :
- Australia telescope, Bary, Baryonic, Baryonic mass, Blackford hill, Carilli wang, Central frequency, Compact morphology, Constraint, Coppin, Current star formation episode, Dark cosmology centre, Data cube, Durham university, Dust properties, Dynamical, Dynamical mass, Dynamical masses, Fwhm, Galaxy, Galaxy formation models, Galform model, Higher redshift analogues, Journal compilation, Line emission, Line luminosity, Mass estimates, Mnras, Model smgs, Observational constraints, Redshift, Royal observatory, Sault killeen, Short observations, Smgs, Solid curve, Solomon vanden bout, Star formation, Stellar mass, Systemic redshift, Total baryonic mass, Volume density, Young galaxies genzel.
- Teeft :
- Australia telescope, Bary, Baryonic, Baryonic mass, Blackford hill, Carilli wang, Central frequency, Compact morphology, Constraint, Coppin, Current star formation episode, Dark cosmology centre, Data cube, Durham university, Dust properties, Dynamical, Dynamical mass, Dynamical masses, Fwhm, Galaxy, Galaxy formation models, Galform model, Higher redshift analogues, Journal compilation, Line emission, Line luminosity, Mass estimates, Mnras, Model smgs, Observational constraints, Redshift, Royal observatory, Sault killeen, Short observations, Smgs, Solid curve, Solomon vanden bout, Star formation, Stellar mass, Systemic redshift, Total baryonic mass, Volume density, Young galaxies genzel.
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.
Url:
- https://api.istex.fr/document/DC5E27DD3B03796A9D45B2CAE94A078ADB20D19E/fulltext/pdf
- https://api.istex.fr/document/2A749F304E1F176ECAFBE11C76F7A96672043380/fulltext/pdf
DOI: 10.1111/j.1745-3933.2010.00914.x
Affiliations:
- Allemagne, Australie, Danemark, France, Pays-Bas, Royaume-Uni, États-Unis
- Arizona, Bade-Wurtemberg, Californie, District de Cologne, District de Karlsruhe, Pennsylvanie, Rhénanie-du-Nord-Westphalie, Écosse
- Bonn, Heidelberg, University Park (Pennsylvanie), Édimbourg
- Université d'Édimbourg, Université d'État de Pennsylvanie
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Le document en format XML
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Dickinson</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>National Optical Astronomy Observatory, PO Box 26732, Tucson, AZ 85726</wicri:regionArea><placeName><region type="state">Arizona</region></placeName></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"><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><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"><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><wicri:noRegion>NSW 1710</wicri:noRegion></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"><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><wicri:noRegion>DK‐2100 Copenhagen</wicri:noRegion></affiliation></author><author><name sortKey="Huynh, M" sort="Huynh, M" uniqKey="Huynh M" first="M." last="Huynh">M. Huynh</name><affiliation wicri:level="2"><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><placeName><region type="state">Californie</region></placeName></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"><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></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="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Argelander Institute for Astronomy, University of Bonn, Auf dem Hügel 71, D‐53121 Bonn</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Bonn</settlement></placeName></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="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max‐Planck‐Institut für Radioastronomie, Auf dem Hügel 69, Bonn, D‐53121</wicri:regionArea><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Bonn</settlement></placeName></affiliation></author><author><name sortKey="Schinnerer, E" sort="Schinnerer, E" uniqKey="Schinnerer E" first="E." last="Schinnerer">E. Schinnerer</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max‐Planck‐Institut für Astronomie, Königstuhl 17, Heidelberg, D‐69117</wicri:regionArea><placeName><region type="land" nuts="1">Bade-Wurtemberg</region><region type="district" nuts="2">District de Karlsruhe</region><settlement type="city">Heidelberg</settlement></placeName></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"><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><wicri:noRegion>NL‐2300 RA Leiden</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Monthly Notices of the Royal Astronomical Society: Letters</title><title level="j" type="alt">MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LETTERS</title><idno type="ISSN">1745-3925</idno><idno type="eISSN">1745-3933</idno><imprint><biblScope unit="vol">407</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="L103">L103</biblScope><biblScope unit="page" to="L107">L107</biblScope><biblScope unit="page-count">5</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2010-09-01">2010-09-01</date></imprint><idno type="ISSN">1745-3925</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1745-3925</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Australia telescope</term><term>Bary</term><term>Baryonic</term><term>Baryonic mass</term><term>Blackford hill</term><term>Carilli wang</term><term>Central frequency</term><term>Compact morphology</term><term>Constraint</term><term>Coppin</term><term>Current star formation episode</term><term>Dark cosmology centre</term><term>Data cube</term><term>Durham university</term><term>Dust properties</term><term>Dynamical</term><term>Dynamical mass</term><term>Dynamical masses</term><term>Fwhm</term><term>Galaxy</term><term>Galaxy formation models</term><term>Galform model</term><term>Higher redshift analogues</term><term>Journal compilation</term><term>Line emission</term><term>Line luminosity</term><term>Mass estimates</term><term>Mnras</term><term>Model smgs</term><term>Observational constraints</term><term>Redshift</term><term>Royal observatory</term><term>Sault killeen</term><term>Short observations</term><term>Smgs</term><term>Solid curve</term><term>Solomon vanden bout</term><term>Star formation</term><term>Stellar mass</term><term>Systemic redshift</term><term>Total baryonic mass</term><term>Volume density</term><term>Young galaxies genzel</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Australia telescope</term><term>Bary</term><term>Baryonic</term><term>Baryonic mass</term><term>Blackford hill</term><term>Carilli wang</term><term>Central frequency</term><term>Compact morphology</term><term>Constraint</term><term>Coppin</term><term>Current star formation episode</term><term>Dark cosmology centre</term><term>Data cube</term><term>Durham university</term><term>Dust properties</term><term>Dynamical</term><term>Dynamical mass</term><term>Dynamical masses</term><term>Fwhm</term><term>Galaxy</term><term>Galaxy formation models</term><term>Galform model</term><term>Higher redshift analogues</term><term>Journal compilation</term><term>Line emission</term><term>Line luminosity</term><term>Mass estimates</term><term>Mnras</term><term>Model smgs</term><term>Observational constraints</term><term>Redshift</term><term>Royal observatory</term><term>Sault killeen</term><term>Short observations</term><term>Smgs</term><term>Solid curve</term><term>Solomon vanden bout</term><term>Star formation</term><term>Stellar mass</term><term>Systemic redshift</term><term>Total baryonic mass</term><term>Volume density</term><term>Young galaxies genzel</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>Danemark</li><li>France</li><li>Pays-Bas</li><li>Royaume-Uni</li><li>États-Unis</li></country><region><li>Arizona</li><li>Bade-Wurtemberg</li><li>Californie</li><li>District de Cologne</li><li>District de Karlsruhe</li><li>Pennsylvanie</li><li>Rhénanie-du-Nord-Westphalie</li><li>Écosse</li></region><settlement><li>Bonn</li><li>Heidelberg</li><li>University Park (Pennsylvanie)</li><li>Édimbourg</li></settlement><orgName><li>Université d'Édimbourg</li><li>Université d'État de Pennsylvanie</li></orgName></list><tree><noCountry><name sortKey="Alexander, D M" sort="Alexander, D M" uniqKey="Alexander D" first="D. M." last="Alexander">D. M. Alexander</name><name sortKey="Chapman, S C" sort="Chapman, S C" uniqKey="Chapman S" first="S. C." last="Chapman">S. C. Chapman</name><name sortKey="Edge, A C" sort="Edge, A C" uniqKey="Edge A" first="A. C." last="Edge">A. C. Edge</name><name sortKey="Smail, Ian" sort="Smail, Ian" uniqKey="Smail I" first="Ian" last="Smail">Ian Smail</name><name sortKey="Swinbank, A M" sort="Swinbank, A M" uniqKey="Swinbank A" first="A. M." last="Swinbank">A. M. Swinbank</name><name sortKey="Wardlow, J L" sort="Wardlow, J L" uniqKey="Wardlow J" first="J. L." last="Wardlow">J. L. Wardlow</name></noCountry><country name="Royaume-Uni"><noRegion><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></noRegion><name sortKey="Dunlop, J S" sort="Dunlop, J S" uniqKey="Dunlop J" first="J. S." last="Dunlop">J. S. Dunlop</name><name sortKey="Ivison, R J" sort="Ivison, R J" uniqKey="Ivison R" first="R. J." last="Ivison">R. J. Ivison</name></country><country name="Allemagne"><region name="Bade-Wurtemberg"><name sortKey="Walter, F" sort="Walter, F" uniqKey="Walter F" first="F." last="Walter">F. Walter</name></region><name sortKey="De Breuck, C" sort="De Breuck, C" uniqKey="De Breuck C" first="C." last="De Breuck">C. De Breuck</name><name sortKey="Knudsen, K K" sort="Knudsen, K K" uniqKey="Knudsen K" first="K. K." last="Knudsen">K. K. Knudsen</name><name sortKey="Menten, K M" sort="Menten, K M" uniqKey="Menten K" first="K. M." last="Menten">K. M. Menten</name><name sortKey="Schinnerer, E" sort="Schinnerer, E" uniqKey="Schinnerer E" first="E." last="Schinnerer">E. Schinnerer</name><name sortKey="Weiss, A" sort="Weiss, A" uniqKey="Weiss A" first="A." last="Weiss">A. Weiss</name></country><country name="États-Unis"><region name="Pennsylvanie"><name sortKey="Brandt, W N" sort="Brandt, W N" uniqKey="Brandt W" first="W. N." last="Brandt">W. N. Brandt</name></region><name sortKey="Dickinson, M" sort="Dickinson, M" uniqKey="Dickinson M" first="M." last="Dickinson">M. Dickinson</name><name sortKey="Huynh, M" sort="Huynh, M" uniqKey="Huynh M" first="M." last="Huynh">M. Huynh</name></country><country name="France"><noRegion><name sortKey="Dannerbauer, H" sort="Dannerbauer, H" uniqKey="Dannerbauer H" first="H." last="Dannerbauer">H. Dannerbauer</name></noRegion></country><country name="Australie"><noRegion><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></noRegion></country><country name="Danemark"><noRegion><name sortKey="Greve, T R" sort="Greve, T R" uniqKey="Greve T" first="T. R." last="Greve">T. R. Greve</name></noRegion></country><country name="Pays-Bas"><noRegion><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></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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