Herschel-Astrophysical Terahertz Large Area Survey: detection of a far-infrared population around galaxy clusters

Kristen Coppin; James Geach; Ian Smail; L. Dunne; A.C. Edge; R. J. Ivison; S. Maddox; R. Auld; M. Baes; S. Buttiglione; A. Cava; D. L. Clements; A. Cooray; A. Dariush; G. De Zotti; S. Dye; S. Eales; J. Fritz; R. Hopwood; E. Ibar; M.J. Jarvis; M. J. Michalowski; D. N. A. Murphy; M. Negrello; E. Pascale; M. Pohlen; E. Rigby; G. Rodighiero; D. Scott; S. Serjeant; Daniel Smith; P. Temi; P. van der Werf

doi:10.1111/j.1365-2966.2011.19084.x

Herschel-Astrophysical Terahertz Large Area Survey: detection of a far-infrared population around galaxy clusters

Kristen Coppin, James Geach, Ian Smail, L. Dunne, A.C. Edge, R. J. Ivison, S. Maddox, R. Auld, M. Baes, S. Buttiglione, A. Cava, D. L. Clements, A. Cooray, A. Dariush, G. De Zotti, S. Dye, S. Eales, J. Fritz, R. Hopwood, E. IbarM.J. Jarvis, M. J. Michalowski, D. N. A. Murphy, M. Negrello, E. Pascale, M. Pohlen, E. Rigby, G. Rodighiero, D. Scott, S. Serjeant, Daniel Smith, P. Temi, P. van der Werf

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Abstract

We report the detection of a significant excess in the surface density of far-infrared sources from the Herschel-Astrophysical Terahertz Large Area Survey within similar to 1Mpc of the centres of 66 optically selected clusters of galaxies in the Sloan Digital Sky Survey with < z > similar to 0.25. From the analysis of the multiwavelength properties of their counterparts we conclude that the far-infrared emission is associated with dust-obscured star formation and/or active galactic nuclei (AGN) within galaxies in the clusters themselves. The excess reaches a maximum at a radius of similar to 0.8Mpc, where we find 1.0 +/- 0.3 S-250 > 34 mJy sources on average per cluster above what would be expected for random field locations. If the far-infrared emission is dominated by star formation (as opposed to AGN) then this corresponds to an average star formation rate of similar to 7M(circle dot) yr(-1) per cluster in sources with L-IR > 5 x 10(10) L-circle dot. Although lensed sources make a negligible contribution to the excess signal, a fraction of the sources around the clusters could be gravitationally lensed, and we have identified a sample of potential cases of cluster-lensed Herschel sources that could be targeted in follow-up studies.

Original language	English
Pages (from-to)	680-688
Number of pages	9
Journal	Monthly Notices of the Royal Astronomical Society
Volume	416
Issue number	1
DOIs	https://doi.org/10.1111/j.1365-2966.2011.19084.x
Publication status	Published - Sept 2011

Keywords

gravitational lensing: strong
galaxies: clusters: general
galaxies: evolution
galaxies: starburst
submillimetre: galaxies

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10.1111/j.1365-2966.2011.19084.x

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The definitive version can be found at: http://onlinelibrary.wiley.com/ Copyright Royal Astronomical Society
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Coppin, K., Geach, J., Smail, I., Dunne, L., Edge, A. C., Ivison, R. J., Maddox, S., Auld, R., Baes, M., Buttiglione, S., Cava, A., Clements, D. L., Cooray, A., Dariush, A., De Zotti, G., Dye, S., Eales, S., Fritz, J., Hopwood, R., ... van der Werf, P. (2011). Herschel-Astrophysical Terahertz Large Area Survey: detection of a far-infrared population around galaxy clusters. Monthly Notices of the Royal Astronomical Society, 416(1), 680-688. https://doi.org/10.1111/j.1365-2966.2011.19084.x

@article{0c6e771077d845b39446bec491ec54d0,

title = "Herschel-Astrophysical Terahertz Large Area Survey: detection of a far-infrared population around galaxy clusters",

abstract = "We report the detection of a significant excess in the surface density of far-infrared sources from the Herschel-Astrophysical Terahertz Large Area Survey within similar to 1Mpc of the centres of 66 optically selected clusters of galaxies in the Sloan Digital Sky Survey with < z > similar to 0.25. From the analysis of the multiwavelength properties of their counterparts we conclude that the far-infrared emission is associated with dust-obscured star formation and/or active galactic nuclei (AGN) within galaxies in the clusters themselves. The excess reaches a maximum at a radius of similar to 0.8Mpc, where we find 1.0 +/- 0.3 S-250 > 34 mJy sources on average per cluster above what would be expected for random field locations. If the far-infrared emission is dominated by star formation (as opposed to AGN) then this corresponds to an average star formation rate of similar to 7M(circle dot) yr(-1) per cluster in sources with L-IR > 5 x 10(10) L-circle dot. Although lensed sources make a negligible contribution to the excess signal, a fraction of the sources around the clusters could be gravitationally lensed, and we have identified a sample of potential cases of cluster-lensed Herschel sources that could be targeted in follow-up studies.",

keywords = "gravitational lensing: strong, galaxies: clusters: general, galaxies: evolution, galaxies: starburst, submillimetre: galaxies",

author = "Kristen Coppin and James Geach and Ian Smail and L. Dunne and A.C. Edge and Ivison, {R. J.} and S. Maddox and R. Auld and M. Baes and S. Buttiglione and A. Cava and Clements, {D. L.} and A. Cooray and A. Dariush and {De Zotti}, G. and S. Dye and S. Eales and J. Fritz and R. Hopwood and E. Ibar and M.J. Jarvis and Michalowski, {M. J.} and Murphy, {D. N. A.} and M. Negrello and E. Pascale and M. Pohlen and E. Rigby and G. Rodighiero and D. Scott and S. Serjeant and Daniel Smith and P. Temi and {van der Werf}, P.",

note = "The definitive version can be found at: http://onlinelibrary.wiley.com/ Copyright Royal Astronomical Society",

year = "2011",

month = sep,

doi = "10.1111/j.1365-2966.2011.19084.x",

language = "English",

volume = "416",

pages = "680--688",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

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Coppin, K , Geach, J, Smail, I, Dunne, L, Edge, AC, Ivison, RJ, Maddox, S, Auld, R, Baes, M, Buttiglione, S, Cava, A, Clements, DL, Cooray, A, Dariush, A, De Zotti, G, Dye, S, Eales, S, Fritz, J, Hopwood, R, Ibar, E, Jarvis, MJ, Michalowski, MJ, Murphy, DNA, Negrello, M, Pascale, E, Pohlen, M, Rigby, E, Rodighiero, G, Scott, D, Serjeant, S, Smith, D, Temi, P & van der Werf, P 2011, 'Herschel-Astrophysical Terahertz Large Area Survey: detection of a far-infrared population around galaxy clusters', Monthly Notices of the Royal Astronomical Society, vol. 416, no. 1, pp. 680-688. https://doi.org/10.1111/j.1365-2966.2011.19084.x

TY - JOUR

T1 - Herschel-Astrophysical Terahertz Large Area Survey: detection of a far-infrared population around galaxy clusters

AU - Coppin, Kristen

AU - Geach, James

AU - Smail, Ian

AU - Dunne, L.

AU - Edge, A.C.

AU - Ivison, R. J.

AU - Maddox, S.

AU - Auld, R.

AU - Baes, M.

AU - Buttiglione, S.

AU - Cava, A.

AU - Clements, D. L.

AU - Cooray, A.

AU - Dariush, A.

AU - De Zotti, G.

AU - Dye, S.

AU - Eales, S.

AU - Fritz, J.

AU - Hopwood, R.

AU - Ibar, E.

AU - Jarvis, M.J.

AU - Michalowski, M. J.

AU - Murphy, D. N. A.

AU - Negrello, M.

AU - Pascale, E.

AU - Pohlen, M.

AU - Rigby, E.

AU - Rodighiero, G.

AU - Scott, D.

AU - Serjeant, S.

AU - Smith, Daniel

AU - Temi, P.

AU - van der Werf, P.

N1 - The definitive version can be found at: http://onlinelibrary.wiley.com/ Copyright Royal Astronomical Society

PY - 2011/9

Y1 - 2011/9

N2 - We report the detection of a significant excess in the surface density of far-infrared sources from the Herschel-Astrophysical Terahertz Large Area Survey within similar to 1Mpc of the centres of 66 optically selected clusters of galaxies in the Sloan Digital Sky Survey with < z > similar to 0.25. From the analysis of the multiwavelength properties of their counterparts we conclude that the far-infrared emission is associated with dust-obscured star formation and/or active galactic nuclei (AGN) within galaxies in the clusters themselves. The excess reaches a maximum at a radius of similar to 0.8Mpc, where we find 1.0 +/- 0.3 S-250 > 34 mJy sources on average per cluster above what would be expected for random field locations. If the far-infrared emission is dominated by star formation (as opposed to AGN) then this corresponds to an average star formation rate of similar to 7M(circle dot) yr(-1) per cluster in sources with L-IR > 5 x 10(10) L-circle dot. Although lensed sources make a negligible contribution to the excess signal, a fraction of the sources around the clusters could be gravitationally lensed, and we have identified a sample of potential cases of cluster-lensed Herschel sources that could be targeted in follow-up studies.

AB - We report the detection of a significant excess in the surface density of far-infrared sources from the Herschel-Astrophysical Terahertz Large Area Survey within similar to 1Mpc of the centres of 66 optically selected clusters of galaxies in the Sloan Digital Sky Survey with < z > similar to 0.25. From the analysis of the multiwavelength properties of their counterparts we conclude that the far-infrared emission is associated with dust-obscured star formation and/or active galactic nuclei (AGN) within galaxies in the clusters themselves. The excess reaches a maximum at a radius of similar to 0.8Mpc, where we find 1.0 +/- 0.3 S-250 > 34 mJy sources on average per cluster above what would be expected for random field locations. If the far-infrared emission is dominated by star formation (as opposed to AGN) then this corresponds to an average star formation rate of similar to 7M(circle dot) yr(-1) per cluster in sources with L-IR > 5 x 10(10) L-circle dot. Although lensed sources make a negligible contribution to the excess signal, a fraction of the sources around the clusters could be gravitationally lensed, and we have identified a sample of potential cases of cluster-lensed Herschel sources that could be targeted in follow-up studies.

KW - gravitational lensing: strong

KW - galaxies: clusters: general

KW - galaxies: evolution

KW - galaxies: starburst

KW - submillimetre: galaxies

U2 - 10.1111/j.1365-2966.2011.19084.x

DO - 10.1111/j.1365-2966.2011.19084.x

M3 - Article

SN - 0035-8711

VL - 416

SP - 680

EP - 688

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Herschel-Astrophysical Terahertz Large Area Survey: detection of a far-infrared population around galaxy clusters

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Keywords

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