The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/179605 |
Resumo: | This paper forms part of the second major public data release of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). In this work, we describe the identification of optical and near-infrared counterparts to the submillimetre detected sources in the 177 deg2 North Galactic Plane (NGP) field.We used the likelihood ratio method to identify counterparts in the Sloan Digital Sky Survey and in the United Kingdom InfraRed Telescope Imaging Deep Sky Survey within a search radius of 10 arcsec of the H-ATLAS sources with a 4σ detection at 250 μm. We obtained reliable (R ≥ 0.8) optical counterparts with r < 22.4 for 42 429 H-ATLAS sources (37.8 per cent), with an estimated completeness of 71.7 per cent and a false identification rate of 4.7 per cent. We also identified counterparts in the nearinfrared using deeper K-band data which covers a smaller ∼25 deg2. We found reliable nearinfrared counterparts to 61.8 per cent of the 250-μm-selected sources within that area. We assessed the performance of the likelihood ratio method to identify optical and near-infrared counterparts taking into account the depth and area of both input catalogues. Using catalogues with the same surface density of objects in the overlapping ∼25 deg2 area, we obtained that the reliable fraction in the near-infrared (54.8 per cent) is significantly higher than in the optical (36.4 per cent). Finally, using deep radio data which covers a small region of the NGP field, we found that 80–90 per cent of our reliable identifications are correct. |
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Furlanetto, CristinaDye, SimonBourne, NathanMaddox, Steve J.Dunne, LorettaEales, Stephen A.Valiante, ElisabettaSmith, Matthew Wilson L.Smith, Daniel James B.Ivison, Rob J.Ibar, Eduardo2018-06-21T02:32:13Z20180035-8711http://hdl.handle.net/10183/179605001066815This paper forms part of the second major public data release of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). In this work, we describe the identification of optical and near-infrared counterparts to the submillimetre detected sources in the 177 deg2 North Galactic Plane (NGP) field.We used the likelihood ratio method to identify counterparts in the Sloan Digital Sky Survey and in the United Kingdom InfraRed Telescope Imaging Deep Sky Survey within a search radius of 10 arcsec of the H-ATLAS sources with a 4σ detection at 250 μm. We obtained reliable (R ≥ 0.8) optical counterparts with r < 22.4 for 42 429 H-ATLAS sources (37.8 per cent), with an estimated completeness of 71.7 per cent and a false identification rate of 4.7 per cent. We also identified counterparts in the nearinfrared using deeper K-band data which covers a smaller ∼25 deg2. We found reliable nearinfrared counterparts to 61.8 per cent of the 250-μm-selected sources within that area. We assessed the performance of the likelihood ratio method to identify optical and near-infrared counterparts taking into account the depth and area of both input catalogues. Using catalogues with the same surface density of objects in the overlapping ∼25 deg2 area, we obtained that the reliable fraction in the near-infrared (54.8 per cent) is significantly higher than in the optical (36.4 per cent). Finally, using deep radio data which covers a small region of the NGP field, we found that 80–90 per cent of our reliable identifications are correct.application/pdfengMonthly notices of the royal astronomical society. Oxford. Vol. 476, no. 1 (May 2018), p. 961–978Catalogos astronomicosFotometria astronômicaDeslocamento para o vermelhoMethods: statisticalCataloguesSubmillimetre: galaxiesSubmillimetre: starsThe second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane fieldEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001066815.pdf001066815.pdfTexto completo (inglês)application/pdf4272867http://www.lume.ufrgs.br/bitstream/10183/179605/1/001066815.pdf9aab3b8df87cccd73cc853e33dd3b605MD51TEXT001066815.pdf.txt001066815.pdf.txtExtracted Texttext/plain94369http://www.lume.ufrgs.br/bitstream/10183/179605/2/001066815.pdf.txt0ede78706b208380368a8a081951ca97MD5210183/1796052023-06-17 03:37:21.53048oai:www.lume.ufrgs.br:10183/179605Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-06-17T06:37:21Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field |
title |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field |
spellingShingle |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field Furlanetto, Cristina Catalogos astronomicos Fotometria astronômica Deslocamento para o vermelho Methods: statistical Catalogues Submillimetre: galaxies Submillimetre: stars |
title_short |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field |
title_full |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field |
title_fullStr |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field |
title_full_unstemmed |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field |
title_sort |
The second Herschel–ATLAS Data Release : III. Optical and near-infrared counterparts in the North Galactic Plane field |
author |
Furlanetto, Cristina |
author_facet |
Furlanetto, Cristina Dye, Simon Bourne, Nathan Maddox, Steve J. Dunne, Loretta Eales, Stephen A. Valiante, Elisabetta Smith, Matthew Wilson L. Smith, Daniel James B. Ivison, Rob J. Ibar, Eduardo |
author_role |
author |
author2 |
Dye, Simon Bourne, Nathan Maddox, Steve J. Dunne, Loretta Eales, Stephen A. Valiante, Elisabetta Smith, Matthew Wilson L. Smith, Daniel James B. Ivison, Rob J. Ibar, Eduardo |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Furlanetto, Cristina Dye, Simon Bourne, Nathan Maddox, Steve J. Dunne, Loretta Eales, Stephen A. Valiante, Elisabetta Smith, Matthew Wilson L. Smith, Daniel James B. Ivison, Rob J. Ibar, Eduardo |
dc.subject.por.fl_str_mv |
Catalogos astronomicos Fotometria astronômica Deslocamento para o vermelho |
topic |
Catalogos astronomicos Fotometria astronômica Deslocamento para o vermelho Methods: statistical Catalogues Submillimetre: galaxies Submillimetre: stars |
dc.subject.eng.fl_str_mv |
Methods: statistical Catalogues Submillimetre: galaxies Submillimetre: stars |
description |
This paper forms part of the second major public data release of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). In this work, we describe the identification of optical and near-infrared counterparts to the submillimetre detected sources in the 177 deg2 North Galactic Plane (NGP) field.We used the likelihood ratio method to identify counterparts in the Sloan Digital Sky Survey and in the United Kingdom InfraRed Telescope Imaging Deep Sky Survey within a search radius of 10 arcsec of the H-ATLAS sources with a 4σ detection at 250 μm. We obtained reliable (R ≥ 0.8) optical counterparts with r < 22.4 for 42 429 H-ATLAS sources (37.8 per cent), with an estimated completeness of 71.7 per cent and a false identification rate of 4.7 per cent. We also identified counterparts in the nearinfrared using deeper K-band data which covers a smaller ∼25 deg2. We found reliable nearinfrared counterparts to 61.8 per cent of the 250-μm-selected sources within that area. We assessed the performance of the likelihood ratio method to identify optical and near-infrared counterparts taking into account the depth and area of both input catalogues. Using catalogues with the same surface density of objects in the overlapping ∼25 deg2 area, we obtained that the reliable fraction in the near-infrared (54.8 per cent) is significantly higher than in the optical (36.4 per cent). Finally, using deep radio data which covers a small region of the NGP field, we found that 80–90 per cent of our reliable identifications are correct. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-06-21T02:32:13Z |
dc.date.issued.fl_str_mv |
2018 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/179605 |
dc.identifier.issn.pt_BR.fl_str_mv |
0035-8711 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001066815 |
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0035-8711 001066815 |
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http://hdl.handle.net/10183/179605 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Monthly notices of the royal astronomical society. Oxford. Vol. 476, no. 1 (May 2018), p. 961–978 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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