HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths
We present a list of 13 candidate gravitationally lensed submillimeter galaxies (SMGs) from 95 deg(2) of the Herschel Multi-tiered Extragalactic Survey, a surface density of 0.14 +/- 0.04 deg(-2). The selected sources have 500 mu m flux densities (S-500) greater than 100 mJy. Gravitational lensing i...
Published in: | The Astrophysical Journal |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
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IOP Publishing Ltd.
2013
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Online Access: | http://hdl.handle.net/10919/25558 http://iopscience.iop.org/0004-637X/762/1/59/pdf/0004-637X_762_1_59.pdf https://doi.org/10.1088/0004-637x/762/1/59 |
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ftvirginiatec:oai:vtechworks.lib.vt.edu:10919/25558 |
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Open Polar |
collection |
VTechWorks (VirginiaTech) |
op_collection_id |
ftvirginiatec |
language |
English |
topic |
gravitational lensing: strong submillimeter: galaxies spectroscopically selected sample herschel-spire instrument mass-density profile south-pole telescope wide-field survey all-sky survey number counts acs survey dark-matter extragalactic survey |
spellingShingle |
gravitational lensing: strong submillimeter: galaxies spectroscopically selected sample herschel-spire instrument mass-density profile south-pole telescope wide-field survey all-sky survey number counts acs survey dark-matter extragalactic survey Wardlow, J. L. Cooray, A. De Bernardis, F. Amblard, A. Arumugam, V. Aussel, H. Baker, A. J. Bethermin, M. Blundell, R. Bock, J. Boselli, A. Bridge, C. R. Buat, V. Burgarella, D. Bussmann, R. S. Cabrera-Lavers, A. Calanog, J. A. Carpenter, J. M. Casey, C. M. Castro-Rodriguez, N. Cava, A. Chanial, P. Chapin, E. Chapman, S. C. Clements, D. L. Conley, A. Cox, P. Dowell, C. D. Dye, S. Eales, S. Farrah, D. Ferrero, P. Franceschini, A. Frayer, D. T. Frazer, C. Fu, H. Gavazzi, R. Glenn, J. Solares, E. A. G. Griffin, M. Gurwell, M. A. Harris, A. I. Hatziminaoglou, E. Hopwood, R. Hyde, A. Ibar, E. Ivison, R. J. Kim, S. Lagache, G. Levenson, L. Marchetti, L. Marsden, G. Martinez-Navajas, P. Negrello, M. Neri, R. Nguyen, H. T. O'Halloran, B. Oliver, S. J. Omont, A. Page, M. J. Panuzzo, P. Papageorgiou, A. Pearson, C. P. Perez-Fournon, I. Pohlen, M. Riechers, D. A. Rigopoulou, D. Roseboom, I. G. Rowan-Robinson, M. Schulz, B. Scott, D. Scoville, N. Seymour, N. Shupe, D. L. Smith, A. J. Streblyanska, A. Strom, A. Symeonidis, M. Trichas, M. Vaccari, M. Vieira, J. D. Viero, M. Wang, L. Xu, C. K. Yan, L. Zemcov, M. HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths |
topic_facet |
gravitational lensing: strong submillimeter: galaxies spectroscopically selected sample herschel-spire instrument mass-density profile south-pole telescope wide-field survey all-sky survey number counts acs survey dark-matter extragalactic survey |
description |
We present a list of 13 candidate gravitationally lensed submillimeter galaxies (SMGs) from 95 deg(2) of the Herschel Multi-tiered Extragalactic Survey, a surface density of 0.14 +/- 0.04 deg(-2). The selected sources have 500 mu m flux densities (S-500) greater than 100 mJy. Gravitational lensing is confirmed by follow-up observations in 9 of the 13 systems (70%), and the lensing status of the four remaining sources is undetermined. We also present a supplementary sample of 29 (0.31 +/- 0.06 deg(-2)) gravitationally lensed SMG candidates with S-500 = 80-100 mJy, which are expected to contain a higher fraction of interlopers than the primary candidates. The number counts of the candidate lensed galaxies are consistent with a simple statistical model of the lensing rate, which uses a foreground matter distribution, the intrinsic SMG number counts, and an assumed SMG redshift distribution. The model predicts that 32%-74% of our S-500 >= 100 mJy candidates are strongly gravitationally lensed (mu >= 2), with the brightest sources being the most robust; this is consistent with the observational data. Our statistical model also predicts that, on average, lensed galaxies with S-500 = 100 mJy are magnified by factors of similar to 9, with apparently brighter galaxies having progressively higher average magnification, due to the shape of the intrinsic number counts. 65% of the sources are expected to have intrinsic 500 mu m flux densities less than 30 mJy. Thus, samples of strongly gravitationally lensed SMGs, such as those presented here, probe below the nominal Herschel detection limit at 500 mu m. They are good targets for the detailed study of the physical conditions in distant dusty, star-forming galaxies, due to the lensing magnification, which can lead to spatial resolutions of similar to 0 ''.01 in the source plane. Smithsonian Institution Academia Sinica CARMA Gordon and Betty Moore Foundation Kenneth T. and Eileen L. Norris Foundation James S. McDonnell Foundation Associates of the ... |
author2 |
Physics Virginia Tech |
format |
Article in Journal/Newspaper |
author |
Wardlow, J. L. Cooray, A. De Bernardis, F. Amblard, A. Arumugam, V. Aussel, H. Baker, A. J. Bethermin, M. Blundell, R. Bock, J. Boselli, A. Bridge, C. R. Buat, V. Burgarella, D. Bussmann, R. S. Cabrera-Lavers, A. Calanog, J. A. Carpenter, J. M. Casey, C. M. Castro-Rodriguez, N. Cava, A. Chanial, P. Chapin, E. Chapman, S. C. Clements, D. L. Conley, A. Cox, P. Dowell, C. D. Dye, S. Eales, S. Farrah, D. Ferrero, P. Franceschini, A. Frayer, D. T. Frazer, C. Fu, H. Gavazzi, R. Glenn, J. Solares, E. A. G. Griffin, M. Gurwell, M. A. Harris, A. I. Hatziminaoglou, E. Hopwood, R. Hyde, A. Ibar, E. Ivison, R. J. Kim, S. Lagache, G. Levenson, L. Marchetti, L. Marsden, G. Martinez-Navajas, P. Negrello, M. Neri, R. Nguyen, H. T. O'Halloran, B. Oliver, S. J. Omont, A. Page, M. J. Panuzzo, P. Papageorgiou, A. Pearson, C. P. Perez-Fournon, I. Pohlen, M. Riechers, D. A. Rigopoulou, D. Roseboom, I. G. Rowan-Robinson, M. Schulz, B. Scott, D. Scoville, N. Seymour, N. Shupe, D. L. Smith, A. J. Streblyanska, A. Strom, A. Symeonidis, M. Trichas, M. Vaccari, M. Vieira, J. D. Viero, M. Wang, L. Xu, C. K. Yan, L. Zemcov, M. |
author_facet |
Wardlow, J. L. Cooray, A. De Bernardis, F. Amblard, A. Arumugam, V. Aussel, H. Baker, A. J. Bethermin, M. Blundell, R. Bock, J. Boselli, A. Bridge, C. R. Buat, V. Burgarella, D. Bussmann, R. S. Cabrera-Lavers, A. Calanog, J. A. Carpenter, J. M. Casey, C. M. Castro-Rodriguez, N. Cava, A. Chanial, P. Chapin, E. Chapman, S. C. Clements, D. L. Conley, A. Cox, P. Dowell, C. D. Dye, S. Eales, S. Farrah, D. Ferrero, P. Franceschini, A. Frayer, D. T. Frazer, C. Fu, H. Gavazzi, R. Glenn, J. Solares, E. A. G. Griffin, M. Gurwell, M. A. Harris, A. I. Hatziminaoglou, E. Hopwood, R. Hyde, A. Ibar, E. Ivison, R. J. Kim, S. Lagache, G. Levenson, L. Marchetti, L. Marsden, G. Martinez-Navajas, P. Negrello, M. Neri, R. Nguyen, H. T. O'Halloran, B. Oliver, S. J. Omont, A. Page, M. J. Panuzzo, P. Papageorgiou, A. Pearson, C. P. Perez-Fournon, I. Pohlen, M. Riechers, D. A. Rigopoulou, D. Roseboom, I. G. Rowan-Robinson, M. Schulz, B. Scott, D. Scoville, N. Seymour, N. Shupe, D. L. Smith, A. J. Streblyanska, A. Strom, A. Symeonidis, M. Trichas, M. Vaccari, M. Vieira, J. D. Viero, M. Wang, L. Xu, C. K. Yan, L. Zemcov, M. |
author_sort |
Wardlow, J. L. |
title |
HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths |
title_short |
HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths |
title_full |
HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths |
title_fullStr |
HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths |
title_full_unstemmed |
HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths |
title_sort |
hermes: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths |
publisher |
IOP Publishing Ltd. |
publishDate |
2013 |
url |
http://hdl.handle.net/10919/25558 http://iopscience.iop.org/0004-637X/762/1/59/pdf/0004-637X_762_1_59.pdf https://doi.org/10.1088/0004-637x/762/1/59 |
geographic |
Canada South Pole |
geographic_facet |
Canada South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
Julie L. Wardlow et al. 2013. "HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths," ApJ 762 59 doi:10.1088/0004-637X/762/1/59 0004-637X http://hdl.handle.net/10919/25558 http://iopscience.iop.org/0004-637X/762/1/59/pdf/0004-637X_762_1_59.pdf https://doi.org/10.1088/0004-637x/762/1/59 |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.1088/0004-637x/762/1/5910.1088/0004-637X/762/1/59 |
container_title |
The Astrophysical Journal |
container_volume |
762 |
container_issue |
1 |
container_start_page |
59 |
_version_ |
1782340412490383360 |
spelling |
ftvirginiatec:oai:vtechworks.lib.vt.edu:10919/25558 2023-11-12T04:26:26+01:00 HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths Astrophysical Journal Wardlow, J. L. Cooray, A. De Bernardis, F. Amblard, A. Arumugam, V. Aussel, H. Baker, A. J. Bethermin, M. Blundell, R. Bock, J. Boselli, A. Bridge, C. R. Buat, V. Burgarella, D. Bussmann, R. S. Cabrera-Lavers, A. Calanog, J. A. Carpenter, J. M. Casey, C. M. Castro-Rodriguez, N. Cava, A. Chanial, P. Chapin, E. Chapman, S. C. Clements, D. L. Conley, A. Cox, P. Dowell, C. D. Dye, S. Eales, S. Farrah, D. Ferrero, P. Franceschini, A. Frayer, D. T. Frazer, C. Fu, H. Gavazzi, R. Glenn, J. Solares, E. A. G. Griffin, M. Gurwell, M. A. Harris, A. I. Hatziminaoglou, E. Hopwood, R. Hyde, A. Ibar, E. Ivison, R. J. Kim, S. Lagache, G. Levenson, L. Marchetti, L. Marsden, G. Martinez-Navajas, P. Negrello, M. Neri, R. Nguyen, H. T. O'Halloran, B. Oliver, S. J. Omont, A. Page, M. J. Panuzzo, P. Papageorgiou, A. Pearson, C. P. Perez-Fournon, I. Pohlen, M. Riechers, D. A. Rigopoulou, D. Roseboom, I. G. Rowan-Robinson, M. Schulz, B. Scott, D. Scoville, N. Seymour, N. Shupe, D. L. Smith, A. J. Streblyanska, A. Strom, A. Symeonidis, M. Trichas, M. Vaccari, M. Vieira, J. D. Viero, M. Wang, L. Xu, C. K. Yan, L. Zemcov, M. Physics Virginia Tech 2013-01 application/pdf http://hdl.handle.net/10919/25558 http://iopscience.iop.org/0004-637X/762/1/59/pdf/0004-637X_762_1_59.pdf https://doi.org/10.1088/0004-637x/762/1/59 en_US eng IOP Publishing Ltd. Julie L. Wardlow et al. 2013. "HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths," ApJ 762 59 doi:10.1088/0004-637X/762/1/59 0004-637X http://hdl.handle.net/10919/25558 http://iopscience.iop.org/0004-637X/762/1/59/pdf/0004-637X_762_1_59.pdf https://doi.org/10.1088/0004-637x/762/1/59 In Copyright http://rightsstatements.org/vocab/InC/1.0/ gravitational lensing: strong submillimeter: galaxies spectroscopically selected sample herschel-spire instrument mass-density profile south-pole telescope wide-field survey all-sky survey number counts acs survey dark-matter extragalactic survey Article - Refereed 2013 ftvirginiatec https://doi.org/10.1088/0004-637x/762/1/5910.1088/0004-637X/762/1/59 2023-10-30T09:44:40Z We present a list of 13 candidate gravitationally lensed submillimeter galaxies (SMGs) from 95 deg(2) of the Herschel Multi-tiered Extragalactic Survey, a surface density of 0.14 +/- 0.04 deg(-2). The selected sources have 500 mu m flux densities (S-500) greater than 100 mJy. Gravitational lensing is confirmed by follow-up observations in 9 of the 13 systems (70%), and the lensing status of the four remaining sources is undetermined. We also present a supplementary sample of 29 (0.31 +/- 0.06 deg(-2)) gravitationally lensed SMG candidates with S-500 = 80-100 mJy, which are expected to contain a higher fraction of interlopers than the primary candidates. The number counts of the candidate lensed galaxies are consistent with a simple statistical model of the lensing rate, which uses a foreground matter distribution, the intrinsic SMG number counts, and an assumed SMG redshift distribution. The model predicts that 32%-74% of our S-500 >= 100 mJy candidates are strongly gravitationally lensed (mu >= 2), with the brightest sources being the most robust; this is consistent with the observational data. Our statistical model also predicts that, on average, lensed galaxies with S-500 = 100 mJy are magnified by factors of similar to 9, with apparently brighter galaxies having progressively higher average magnification, due to the shape of the intrinsic number counts. 65% of the sources are expected to have intrinsic 500 mu m flux densities less than 30 mJy. Thus, samples of strongly gravitationally lensed SMGs, such as those presented here, probe below the nominal Herschel detection limit at 500 mu m. They are good targets for the detailed study of the physical conditions in distant dusty, star-forming galaxies, due to the lensing magnification, which can lead to spatial resolutions of similar to 0 ''.01 in the source plane. Smithsonian Institution Academia Sinica CARMA Gordon and Betty Moore Foundation Kenneth T. and Eileen L. Norris Foundation James S. McDonnell Foundation Associates of the ... Article in Journal/Newspaper South pole VTechWorks (VirginiaTech) Canada South Pole The Astrophysical Journal 762 1 59 |