The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2)
We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 μm extracted from the Herschel Astrophysical Terahertz Large Area Survey, over an area of 600 deg2. Available imaging and spectroscopic data allow us to confirm the strong lensing in 20 cases and to r...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press (OUP)
2016
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Online Access: | http://hdl.handle.net/10044/1/60565 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000395165900071&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202 https://doi.org/10.1093/mnras/stw2911 |
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/60565 2023-05-15T18:23:00+02:00 The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) 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 Kleijn, GV Vernardos, G Wardlow, JL Baes, M Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michalowski, MJ Smith, MWL Vaccari, M Van der Werf, P 2016-11-07 http://hdl.handle.net/10044/1/60565 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000395165900071&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202 https://doi.org/10.1093/mnras/stw2911 English eng Oxford University Press (OUP) Monthly Notices of the Royal Astronomical Society © 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. 3580 3558 Science & Technology Physical Sciences Astronomy & Astrophysics 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 0201 Astronomical And Space Sciences Journal Article 2016 ftimperialcol https://doi.org/10.1093/mnras/stw2911 2018-09-16T06:02:46Z We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 μm extracted from the Herschel Astrophysical Terahertz Large Area Survey, over an area of 600 deg2. 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 zL = 0.6 and zS = 2.5, respectively, and are observed out to zL = 1.2 and zS = 4.2. We measure the number counts of candidate lensed galaxies at 500 μm 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 Imperial College London: Spiral South Pole Monthly Notices of the Royal Astronomical Society 465 3 3558 3580 |
institution |
Open Polar |
collection |
Imperial College London: Spiral |
op_collection_id |
ftimperialcol |
language |
English |
topic |
Science & Technology Physical Sciences Astronomy & Astrophysics 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 0201 Astronomical And Space Sciences |
spellingShingle |
Science & Technology Physical Sciences Astronomy & Astrophysics 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 0201 Astronomical And Space Sciences 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 Kleijn, GV Vernardos, G Wardlow, JL Baes, M Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michalowski, MJ Smith, MWL Vaccari, M Van der Werf, P The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) |
topic_facet |
Science & Technology Physical Sciences Astronomy & Astrophysics 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 0201 Astronomical And Space Sciences |
description |
We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 μm extracted from the Herschel Astrophysical Terahertz Large Area Survey, over an area of 600 deg2. 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 zL = 0.6 and zS = 2.5, respectively, and are observed out to zL = 1.2 and zS = 4.2. We measure the number counts of candidate lensed galaxies at 500 μm 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 Kleijn, GV Vernardos, G Wardlow, JL Baes, M Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michalowski, 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 Kleijn, GV Vernardos, G Wardlow, JL Baes, M Baker, AJ Bourne, N Clements, D Crawford, SM Dye, S Dunne, L Eales, S Ivison, RJ Marchetti, L Michalowski, MJ Smith, MWL Vaccari, M Van der Werf, P |
author_sort |
Negrello, M |
title |
The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) |
title_short |
The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) |
title_full |
The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) |
title_fullStr |
The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) |
title_full_unstemmed |
The Herschel-ATLAS: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) |
title_sort |
herschel-atlas: a sample of 500 mu m- selected lensed galaxies over 600 deg(2) |
publisher |
Oxford University Press (OUP) |
publishDate |
2016 |
url |
http://hdl.handle.net/10044/1/60565 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000395165900071&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202 https://doi.org/10.1093/mnras/stw2911 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
3580 3558 |
op_relation |
Monthly Notices of the Royal Astronomical Society |
op_rights |
© 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. |
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 |
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1766202423747018752 |