Abstract
The Herschel Lensing Survey (HLS) takes advantage of gravitational lensing by massive galaxy clusters to sample a population of high-redshift galaxies which are too faint to be detected above the confusion limit of current far-infrared/submillimeter telescopes. Measurements from 100-500 μm bracket the peaks of the far-infrared spectral energy distributions of these galaxies, characterizing their infrared luminosities and star formation rates. We introduce initial results from our science demonstration phase observations, directed toward the Bullet cluster (1E0657-56). By combining our observations with LABOCA 870 μm and AzTEC 1.1 mm data we fully constrain the spectral energy distributions of 19 MIPS 24 μm-selected galaxies which are located behind the cluster. We find that their colors are best fit using templates based on local galaxies with systematically lower infrared luminosities. This suggests that our sources are not like local ultra-luminous infrared galaxies in which vigorous star formation is contained in a compact highly dust-obscured region. Instead, they appear to be scaled up versions of lower luminosity local galaxies with star formation occurring on larger physical scales.
Original language | English (US) |
---|---|
Article number | L13 |
Journal | Astronomy and Astrophysics |
Volume | 518 |
Issue number | 7-8 |
State | Published - Jul 16 2010 |
Fingerprint
Keywords
- Galaxies: clusters: general
- Galaxies: evolution
- Galaxies: high-redshift
- Gravitational lensing: strong
- Infrared: galaxies
- Submillimeter: galaxies
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
Cite this
The far-infrared/submillimeter properties of galaxies located behind the Bullet cluster. / Rex, M.; Rawle, T. D.; Egami, E.; Pérez-González, P. G.; Zemcov, M.; Aretxaga, I.; Chung, S. M.; Fadda, D.; Gonzalez, A. H.; Hughes, D. H.; Horellou, C.; Johansson, D.; Kneib, J. P.; Richard, J.; Altieri, B.; Fiedler, A. K.; Pereira, M. J.; Rieke, George H.; Smail, I.; Valtchanov, I.; Blain, A. W.; Bock, J. J.; Boone, F.; Bridge, C. R.; Clement, B.; Combes, F.; Dowell, C. D.; Dessauges-Zavadsky, M.; Ilbert, O.; Ivison, R. J.; Jauzac, M.; Lutz, D.; Omont, A.; Pelló, R.; Rodighiero, G.; Schaerer, D.; Smith, G. P.; Walth, G. L.; Van Der Werf, P.; Werner, M. W.; Austermann, J. E.; Ezawa, H.; Kawabe, R.; Kohno, K.; Perera, T. A.; Scott, K. S.; Wilson, G. W.; Yun, M. S.
In: Astronomy and Astrophysics, Vol. 518, No. 7-8, L13, 16.07.2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The far-infrared/submillimeter properties of galaxies located behind the Bullet cluster
AU - Rex, M.
AU - Rawle, T. D.
AU - Egami, E.
AU - Pérez-González, P. G.
AU - Zemcov, M.
AU - Aretxaga, I.
AU - Chung, S. M.
AU - Fadda, D.
AU - Gonzalez, A. H.
AU - Hughes, D. H.
AU - Horellou, C.
AU - Johansson, D.
AU - Kneib, J. P.
AU - Richard, J.
AU - Altieri, B.
AU - Fiedler, A. K.
AU - Pereira, M. J.
AU - Rieke, George H.
AU - Smail, I.
AU - Valtchanov, I.
AU - Blain, A. W.
AU - Bock, J. J.
AU - Boone, F.
AU - Bridge, C. R.
AU - Clement, B.
AU - Combes, F.
AU - Dowell, C. D.
AU - Dessauges-Zavadsky, M.
AU - Ilbert, O.
AU - Ivison, R. J.
AU - Jauzac, M.
AU - Lutz, D.
AU - Omont, A.
AU - Pelló, R.
AU - Rodighiero, G.
AU - Schaerer, D.
AU - Smith, G. P.
AU - Walth, G. L.
AU - Van Der Werf, P.
AU - Werner, M. W.
AU - Austermann, J. E.
AU - Ezawa, H.
AU - Kawabe, R.
AU - Kohno, K.
AU - Perera, T. A.
AU - Scott, K. S.
AU - Wilson, G. W.
AU - Yun, M. S.
PY - 2010/7/16
Y1 - 2010/7/16
N2 - The Herschel Lensing Survey (HLS) takes advantage of gravitational lensing by massive galaxy clusters to sample a population of high-redshift galaxies which are too faint to be detected above the confusion limit of current far-infrared/submillimeter telescopes. Measurements from 100-500 μm bracket the peaks of the far-infrared spectral energy distributions of these galaxies, characterizing their infrared luminosities and star formation rates. We introduce initial results from our science demonstration phase observations, directed toward the Bullet cluster (1E0657-56). By combining our observations with LABOCA 870 μm and AzTEC 1.1 mm data we fully constrain the spectral energy distributions of 19 MIPS 24 μm-selected galaxies which are located behind the cluster. We find that their colors are best fit using templates based on local galaxies with systematically lower infrared luminosities. This suggests that our sources are not like local ultra-luminous infrared galaxies in which vigorous star formation is contained in a compact highly dust-obscured region. Instead, they appear to be scaled up versions of lower luminosity local galaxies with star formation occurring on larger physical scales.
AB - The Herschel Lensing Survey (HLS) takes advantage of gravitational lensing by massive galaxy clusters to sample a population of high-redshift galaxies which are too faint to be detected above the confusion limit of current far-infrared/submillimeter telescopes. Measurements from 100-500 μm bracket the peaks of the far-infrared spectral energy distributions of these galaxies, characterizing their infrared luminosities and star formation rates. We introduce initial results from our science demonstration phase observations, directed toward the Bullet cluster (1E0657-56). By combining our observations with LABOCA 870 μm and AzTEC 1.1 mm data we fully constrain the spectral energy distributions of 19 MIPS 24 μm-selected galaxies which are located behind the cluster. We find that their colors are best fit using templates based on local galaxies with systematically lower infrared luminosities. This suggests that our sources are not like local ultra-luminous infrared galaxies in which vigorous star formation is contained in a compact highly dust-obscured region. Instead, they appear to be scaled up versions of lower luminosity local galaxies with star formation occurring on larger physical scales.
KW - Galaxies: clusters: general
KW - Galaxies: evolution
KW - Galaxies: high-redshift
KW - Gravitational lensing: strong
KW - Infrared: galaxies
KW - Submillimeter: galaxies
UR - http://www.scopus.com/inward/record.url?scp=77957838781&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957838781&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:77957838781
VL - 518
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
SN - 0004-6361
IS - 7-8
M1 - L13
ER -