A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223
During our Herschel Lensing Survey (HLS) of massive galaxy clusters, we have discovered an exceptionally bright source behind the z = 0.22 cluster Abell 773, which appears to be a strongly lensed submillimeter galaxy (SMG) at z = 5.2429. This source is unusual compared to most other lensed sources d...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/45096 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/45096 |
| Access Level: | acceso abierto |
| Palabra clave: | 52 Star-formation history Ultraluminous infrared galaxies Molecular gas Herschel-atlas APM 08279+5255 Markarian 231 Water-vapor Interstellar-medium Massive galaxy Dark-matter Astrofísica Astronomía (Física) |
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A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223Combes, F.Rex, M.Rawle, T. D.Egami, E.Boone, F.Smail, I.Richard, J.Ivison, R. J.Gurwell, M.Casey, C. M.Omont, A.Berciano Alba, A.Dessauges-Zavadsky, M.Edge, A. C.Fazio, G. G.Kneib, J. P.Okabe, N.Pelló, R.Pérez González, Pablo GuillermoSchaerer, D.Smith, G. P.Swinbank, A. M.van der Werf, P.52Star-formation historyUltraluminous infrared galaxiesMolecular gasHerschel-atlasAPM 08279+5255Markarian 231Water-vaporInterstellar-mediumMassive galaxyDark-matterAstrofísicaAstronomía (Física)During our Herschel Lensing Survey (HLS) of massive galaxy clusters, we have discovered an exceptionally bright source behind the z = 0.22 cluster Abell 773, which appears to be a strongly lensed submillimeter galaxy (SMG) at z = 5.2429. This source is unusual compared to most other lensed sources discovered by Herschel so far, because of its higher submm flux (∼200 mJy at 500 μm) and its high redshift. The dominant lens is a foreground z = 0.63 galaxy, not the cluster itself. The source has a far-infrared (FIR) luminosity of L_FIR = 1.1 × 10^14/μ L_⨀, where μ is the magnification factor, likely ∼11. We report here the redshift identification through CO lines with the IRAM-30 m, and the analysis of the gas excitation, based on CO(7–6), CO(6–5), CO(5–4) detected at IRAM and the CO(2–1) at the EVLA. All lines decompose into a wide and strong red component, and a narrower and weaker blue component, 540 km s^−1 apart. Assuming the ultraluminous galaxy (ULIRG) CO-to-H_2 conversion ratio, the H_2 mass is 5.8×10^11/μ M_⨀, of which one third is in a cool component. From the CI(^3P_2−^3 P_1) line we derive a C_I/H_2 number abundance of 6 × 10^−5 similar to that in other ULIRGs. The H_2O_p(2, 0, 2−1, 1, 1) line is strong only in the red velocity component, with an intensity ratio I(H_2O)/I(CO) ∼ 0.5, suggesting a strong local FIR radiation field, possibly from an active nucleus (AGN) component. We detect the [NII]205 μm line for the first time at high-z. It shows comparable blue and red components, with a strikingly broad blue one, suggesting strong ionized gas flows.EDP ScienciesUniversidad Complutense de Madrid20122012-01-0120122012-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/45096reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/450962026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 |
| title |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 |
| spellingShingle |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 Combes, F. 52 Star-formation history Ultraluminous infrared galaxies Molecular gas Herschel-atlas APM 08279+5255 Markarian 231 Water-vapor Interstellar-medium Massive galaxy Dark-matter Astrofísica Astronomía (Física) |
| title_short |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 |
| title_full |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 |
| title_fullStr |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 |
| title_full_unstemmed |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 |
| title_sort |
A bright z=5.2 lensed submillimeter galaxy in the field of Abell 773 HLSJ091828.6+514223 |
| dc.creator.none.fl_str_mv |
Combes, F. Rex, M. Rawle, T. D. Egami, E. Boone, F. Smail, I. Richard, J. Ivison, R. J. Gurwell, M. Casey, C. M. Omont, A. Berciano Alba, A. Dessauges-Zavadsky, M. Edge, A. C. Fazio, G. G. Kneib, J. P. Okabe, N. Pelló, R. Pérez González, Pablo Guillermo Schaerer, D. Smith, G. P. Swinbank, A. M. van der Werf, P. |
| author |
Combes, F. |
| author_facet |
Combes, F. Rex, M. Rawle, T. D. Egami, E. Boone, F. Smail, I. Richard, J. Ivison, R. J. Gurwell, M. Casey, C. M. Omont, A. Berciano Alba, A. Dessauges-Zavadsky, M. Edge, A. C. Fazio, G. G. Kneib, J. P. Okabe, N. Pelló, R. Pérez González, Pablo Guillermo Schaerer, D. Smith, G. P. Swinbank, A. M. van der Werf, P. |
| author_role |
author |
| author2 |
Rex, M. Rawle, T. D. Egami, E. Boone, F. Smail, I. Richard, J. Ivison, R. J. Gurwell, M. Casey, C. M. Omont, A. Berciano Alba, A. Dessauges-Zavadsky, M. Edge, A. C. Fazio, G. G. Kneib, J. P. Okabe, N. Pelló, R. Pérez González, Pablo Guillermo Schaerer, D. Smith, G. P. Swinbank, A. M. van der Werf, P. |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
52 Star-formation history Ultraluminous infrared galaxies Molecular gas Herschel-atlas APM 08279+5255 Markarian 231 Water-vapor Interstellar-medium Massive galaxy Dark-matter Astrofísica Astronomía (Física) |
| topic |
52 Star-formation history Ultraluminous infrared galaxies Molecular gas Herschel-atlas APM 08279+5255 Markarian 231 Water-vapor Interstellar-medium Massive galaxy Dark-matter Astrofísica Astronomía (Física) |
| description |
During our Herschel Lensing Survey (HLS) of massive galaxy clusters, we have discovered an exceptionally bright source behind the z = 0.22 cluster Abell 773, which appears to be a strongly lensed submillimeter galaxy (SMG) at z = 5.2429. This source is unusual compared to most other lensed sources discovered by Herschel so far, because of its higher submm flux (∼200 mJy at 500 μm) and its high redshift. The dominant lens is a foreground z = 0.63 galaxy, not the cluster itself. The source has a far-infrared (FIR) luminosity of L_FIR = 1.1 × 10^14/μ L_⨀, where μ is the magnification factor, likely ∼11. We report here the redshift identification through CO lines with the IRAM-30 m, and the analysis of the gas excitation, based on CO(7–6), CO(6–5), CO(5–4) detected at IRAM and the CO(2–1) at the EVLA. All lines decompose into a wide and strong red component, and a narrower and weaker blue component, 540 km s^−1 apart. Assuming the ultraluminous galaxy (ULIRG) CO-to-H_2 conversion ratio, the H_2 mass is 5.8×10^11/μ M_⨀, of which one third is in a cool component. From the CI(^3P_2−^3 P_1) line we derive a C_I/H_2 number abundance of 6 × 10^−5 similar to that in other ULIRGs. The H_2O_p(2, 0, 2−1, 1, 1) line is strong only in the red velocity component, with an intensity ratio I(H_2O)/I(CO) ∼ 0.5, suggesting a strong local FIR radiation field, possibly from an active nucleus (AGN) component. We detect the [NII]205 μm line for the first time at high-z. It shows comparable blue and red components, with a strikingly broad blue one, suggesting strong ionized gas flows. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 2012-01-01 2012 2012-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.14352/45096 |
| url |
https://hdl.handle.net/20.500.14352/45096 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
EDP Sciencies |
| publisher.none.fl_str_mv |
EDP Sciencies |
| dc.source.none.fl_str_mv |
reponame:Docta Complutense instname:Universidad Complutense de Madrid (UCM) |
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Universidad Complutense de Madrid (UCM) |
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Docta Complutense |
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Docta Complutense |
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1869406911534727168 |
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15,301603 |