The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2
We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 mu m extracted from the Herschel Astrophysical Terahertz Large Area Survey, over an area of 600 deg(2). Available imaging and spectroscopic data allow us to confirm the strong lensing in 20 cases and...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Online Access: | https://biblio.ugent.be/publication/8503153 http://hdl.handle.net/1854/LU-8503153 https://doi.org/10.1093/mnras/stw2911 https://biblio.ugent.be/publication/8503153/file/8503154 |
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ftunivgent:oai:archive.ugent.be:8503153 2023-06-11T04:16:48+02:00 The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2 Negrello, M Amber, S Amvrosiadis, A Cai, Z-Y Lapi, A Gonzalez-Nuevo, J De Zotti, G Furlanetto, C Maddox, SJ Allen, M Bakx, T Bussmann, RS Cooray, A Covone, G Danese, L Dannerbauer, H Fu, H Greenslade, J Gurwell, M Hopwood, R Koopmans, LVE Napolitano, N Nayyeri, H Omont, A Petrillo, CE Riechers, DA Serjeant, S Tortora, C Valiante, E Verdoes Kleijn, G Vernardos, G Wardlow, JL Baes, Maarten Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michałowski, MJ Smith, MWL Vaccari, M van der Werf, P 2017 application/pdf https://biblio.ugent.be/publication/8503153 http://hdl.handle.net/1854/LU-8503153 https://doi.org/10.1093/mnras/stw2911 https://biblio.ugent.be/publication/8503153/file/8503154 eng eng https://biblio.ugent.be/publication/8503153 http://hdl.handle.net/1854/LU-8503153 http://dx.doi.org/10.1093/mnras/stw2911 https://biblio.ugent.be/publication/8503153/file/8503154 No license (in copyright) info:eu-repo/semantics/openAccess MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY ISSN: 0035-8711 ISSN: 1365-2966 Physics and Astronomy gravitational lensing: strong galaxies: evolution galaxies: high redshift submillimetre galaxies DARK-MATTER SUBSTRUCTURE STAR-FORMING GALAXIES RESOLUTION ALMA OBSERVATIONS LUMINOUS INFRARED GALAXIES SOUTH-POLE TELESCOPE DEEP FIELD-SOUTH SUBMILLIMETER GALAXIES DATA RELEASE REDSHIFT DISTRIBUTION GRAVITATIONAL LENSES journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftunivgent https://doi.org/10.1093/mnras/stw2911 2023-04-19T22:11:21Z We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 mu m extracted from the Herschel Astrophysical Terahertz Large Area Survey, over an area of 600 deg(2). Available imaging and spectroscopic data allow us to confirm the strong lensing in 20 cases and to reject it in one case. For other eight objects, the lensing scenario is strongly supported by the presence of two sources along the same line of sight with distinct photometric redshifts. The remaining objects await more follow-up observations to confirm their nature. The lenses and the background sources have median redshifts z(L) = 0.6 and z(S) = 2.5, respectively, and are observed out to z(L) = 1.2 and z(S) = 4.2. We measure the number counts of candidate lensed galaxies at 500 mu m and compare them with theoretical predictions, finding a good agreement for a maximum magnification of the background sources in the range 10-20. These values are consistent with the magnification factors derived from the lens modelling of individual systems. The catalogue presented here provides sub-mm bright targets for follow-up observations aimed at exploiting gravitational lensing, to study with unprecedented details the morphological and dynamical properties of dusty star-forming regions in z >= 1.5 galaxies. Article in Journal/Newspaper South pole Ghent University Academic Bibliography South Pole Monthly Notices of the Royal Astronomical Society 465 3 3558 3580 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Physics and Astronomy gravitational lensing: strong galaxies: evolution galaxies: high redshift submillimetre galaxies DARK-MATTER SUBSTRUCTURE STAR-FORMING GALAXIES RESOLUTION ALMA OBSERVATIONS LUMINOUS INFRARED GALAXIES SOUTH-POLE TELESCOPE DEEP FIELD-SOUTH SUBMILLIMETER GALAXIES DATA RELEASE REDSHIFT DISTRIBUTION GRAVITATIONAL LENSES |
spellingShingle |
Physics and Astronomy gravitational lensing: strong galaxies: evolution galaxies: high redshift submillimetre galaxies DARK-MATTER SUBSTRUCTURE STAR-FORMING GALAXIES RESOLUTION ALMA OBSERVATIONS LUMINOUS INFRARED GALAXIES SOUTH-POLE TELESCOPE DEEP FIELD-SOUTH SUBMILLIMETER GALAXIES DATA RELEASE REDSHIFT DISTRIBUTION GRAVITATIONAL LENSES Negrello, M Amber, S Amvrosiadis, A Cai, Z-Y Lapi, A Gonzalez-Nuevo, J De Zotti, G Furlanetto, C Maddox, SJ Allen, M Bakx, T Bussmann, RS Cooray, A Covone, G Danese, L Dannerbauer, H Fu, H Greenslade, J Gurwell, M Hopwood, R Koopmans, LVE Napolitano, N Nayyeri, H Omont, A Petrillo, CE Riechers, DA Serjeant, S Tortora, C Valiante, E Verdoes Kleijn, G Vernardos, G Wardlow, JL Baes, Maarten Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michałowski, MJ Smith, MWL Vaccari, M van der Werf, P The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2 |
topic_facet |
Physics and Astronomy gravitational lensing: strong galaxies: evolution galaxies: high redshift submillimetre galaxies DARK-MATTER SUBSTRUCTURE STAR-FORMING GALAXIES RESOLUTION ALMA OBSERVATIONS LUMINOUS INFRARED GALAXIES SOUTH-POLE TELESCOPE DEEP FIELD-SOUTH SUBMILLIMETER GALAXIES DATA RELEASE REDSHIFT DISTRIBUTION GRAVITATIONAL LENSES |
description |
We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 mu m extracted from the Herschel Astrophysical Terahertz Large Area Survey, over an area of 600 deg(2). Available imaging and spectroscopic data allow us to confirm the strong lensing in 20 cases and to reject it in one case. For other eight objects, the lensing scenario is strongly supported by the presence of two sources along the same line of sight with distinct photometric redshifts. The remaining objects await more follow-up observations to confirm their nature. The lenses and the background sources have median redshifts z(L) = 0.6 and z(S) = 2.5, respectively, and are observed out to z(L) = 1.2 and z(S) = 4.2. We measure the number counts of candidate lensed galaxies at 500 mu m and compare them with theoretical predictions, finding a good agreement for a maximum magnification of the background sources in the range 10-20. These values are consistent with the magnification factors derived from the lens modelling of individual systems. The catalogue presented here provides sub-mm bright targets for follow-up observations aimed at exploiting gravitational lensing, to study with unprecedented details the morphological and dynamical properties of dusty star-forming regions in z >= 1.5 galaxies. |
format |
Article in Journal/Newspaper |
author |
Negrello, M Amber, S Amvrosiadis, A Cai, Z-Y Lapi, A Gonzalez-Nuevo, J De Zotti, G Furlanetto, C Maddox, SJ Allen, M Bakx, T Bussmann, RS Cooray, A Covone, G Danese, L Dannerbauer, H Fu, H Greenslade, J Gurwell, M Hopwood, R Koopmans, LVE Napolitano, N Nayyeri, H Omont, A Petrillo, CE Riechers, DA Serjeant, S Tortora, C Valiante, E Verdoes Kleijn, G Vernardos, G Wardlow, JL Baes, Maarten Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michałowski, MJ Smith, MWL Vaccari, M van der Werf, P |
author_facet |
Negrello, M Amber, S Amvrosiadis, A Cai, Z-Y Lapi, A Gonzalez-Nuevo, J De Zotti, G Furlanetto, C Maddox, SJ Allen, M Bakx, T Bussmann, RS Cooray, A Covone, G Danese, L Dannerbauer, H Fu, H Greenslade, J Gurwell, M Hopwood, R Koopmans, LVE Napolitano, N Nayyeri, H Omont, A Petrillo, CE Riechers, DA Serjeant, S Tortora, C Valiante, E Verdoes Kleijn, G Vernardos, G Wardlow, JL Baes, Maarten Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michałowski, MJ Smith, MWL Vaccari, M van der Werf, P |
author_sort |
Negrello, M |
title |
The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2 |
title_short |
The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2 |
title_full |
The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2 |
title_fullStr |
The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2 |
title_full_unstemmed |
The Herschel-ATLAS : a sample of 500 μm-selected lensed galaxies over 600 deg2 |
title_sort |
herschel-atlas : a sample of 500 μm-selected lensed galaxies over 600 deg2 |
publishDate |
2017 |
url |
https://biblio.ugent.be/publication/8503153 http://hdl.handle.net/1854/LU-8503153 https://doi.org/10.1093/mnras/stw2911 https://biblio.ugent.be/publication/8503153/file/8503154 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY ISSN: 0035-8711 ISSN: 1365-2966 |
op_relation |
https://biblio.ugent.be/publication/8503153 http://hdl.handle.net/1854/LU-8503153 http://dx.doi.org/10.1093/mnras/stw2911 https://biblio.ugent.be/publication/8503153/file/8503154 |
op_rights |
No license (in copyright) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/mnras/stw2911 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
465 |
container_issue |
3 |
container_start_page |
3558 |
op_container_end_page |
3580 |
_version_ |
1768375425083375616 |