Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters
Recent observations of galaxy clusters with the SCUBA instrument on the James Clarke Maxwell Telescope have revealed a sample of gravitationally lensed sources at sub-mm wavelengths. We extend our previous calculation on the expected number of lensed optical arcs and radio sources to study the sub-m...
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ftcern:oai:cds.cern.ch:364156 2023-05-15T18:22:34+02:00 Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters Cooray, A R 1999 http://cds.cern.ch/record/364156 eng eng http://cds.cern.ch/record/364156 astro-ph/9809071 oai:cds.cern.ch:364156 Astrophysics and Astronomy 1999 ftcern 2018-07-28T03:45:37Z Recent observations of galaxy clusters with the SCUBA instrument on the James Clarke Maxwell Telescope have revealed a sample of gravitationally lensed sources at sub-mm wavelengths. We extend our previous calculation on the expected number of lensed optical arcs and radio sources to study the sub-mm lensed source statistics due to foreground massive clusters. For a flat cosmology with Omega_m=0.4 and Omega_Lambda =0.6, we predict roughly 1.5 \times 10^4 lensed sub-mm sources with flux densities greater than 4 mJy at 850 microns, and with amplifications due to lensing greater than 2, towards galaxy clusters with X-ray luminosities greater than 8 x 10^44 h^-2 ergs s^-1 (0.3 to 3.5 keV band). We compare our predictions with observations from the SCUBA instrument, and briefly consider the possibility of using the South Pole 10-m sub-mm telescope and the Planck surveyor to identify lensed sub-mm sources. A catalog of around 100 gravitationally lensed sources at 353 GHz may be a useful by-product of Planck. Other/Unknown Material South pole CERN Document Server (CDS) South Pole |
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CERN Document Server (CDS) |
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ftcern |
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English |
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Astrophysics and Astronomy |
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Astrophysics and Astronomy Cooray, A R Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters |
topic_facet |
Astrophysics and Astronomy |
description |
Recent observations of galaxy clusters with the SCUBA instrument on the James Clarke Maxwell Telescope have revealed a sample of gravitationally lensed sources at sub-mm wavelengths. We extend our previous calculation on the expected number of lensed optical arcs and radio sources to study the sub-mm lensed source statistics due to foreground massive clusters. For a flat cosmology with Omega_m=0.4 and Omega_Lambda =0.6, we predict roughly 1.5 \times 10^4 lensed sub-mm sources with flux densities greater than 4 mJy at 850 microns, and with amplifications due to lensing greater than 2, towards galaxy clusters with X-ray luminosities greater than 8 x 10^44 h^-2 ergs s^-1 (0.3 to 3.5 keV band). We compare our predictions with observations from the SCUBA instrument, and briefly consider the possibility of using the South Pole 10-m sub-mm telescope and the Planck surveyor to identify lensed sub-mm sources. A catalog of around 100 gravitationally lensed sources at 353 GHz may be a useful by-product of Planck. |
author |
Cooray, A R |
author_facet |
Cooray, A R |
author_sort |
Cooray, A R |
title |
Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters |
title_short |
Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters |
title_full |
Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters |
title_fullStr |
Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters |
title_full_unstemmed |
Gravitationally Lensed Sub-mm Sources towards Galaxy Clusters |
title_sort |
gravitationally lensed sub-mm sources towards galaxy clusters |
publishDate |
1999 |
url |
http://cds.cern.ch/record/364156 |
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South Pole |
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South Pole |
genre |
South pole |
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South pole |
op_relation |
http://cds.cern.ch/record/364156 astro-ph/9809071 oai:cds.cern.ch:364156 |
_version_ |
1766201977598902272 |