Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies

Using Herschel Photodetector Array Camera (PACS) and Spectral and Photometric Imaging Receiver (SPIRE) observations of Lockman Hole-North and Great Observatories Origins Deep Survey-North (GOODS-N) as part of the Herschel Multi-tiered Extragalactic Survey (HerMES) project, we explore the far-infrare...

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Main Authors:	Magdis, G., Elbaz, D., Hwang, H., Amblard, A., Arumugam, V., Aussel, H., Blain, A., Bock, J., Boselli, A., Buat, V., Castro-Rodríguez, N., Cava, A., Chanial, P., Clements, D., Conley, A., Conversi, L., Cooray, A., Dowell, C., Dwek, E., Eales, S., Farrah, D., Franceschini, A., Glenn, J., Griffin, M., Halpern, M., Hatziminaoglou, E., Huang, J., Ibar, E., Isaak, K., Le Floc'h, E., Lagache, G., Levenson, L., Lonsdale, C., Lu, N., Madden, S., Maffei, B., Mainetti, G., Marchetti, L., Morrison, G., Nguyen, H., O'Halloran, B., Oliver, S., Omont, A., Owen, F., Page, M., Pannella, M., Panuzzo, P., Papageorgiou, A., Pearson, C., Pérez-Fournon, I., Pohlen, M., Rigopoulou, D., Rizzo, D., Roseboom, I., Rowan-Robinson, M., Schulz, B., Scott, D., Seymour, Nick, Shupe, D., Smith, A., Stevens, J., Strazzullo, V., Symeonidis, M., Trichas, M., Tugwell, K., Vaccari, M., Valtchanov, I., Vigroux, L., Wang, L., Wright, G., Xu, C., Zemcov, M.
Format:	Journal Article
Published:	Oxford University Press 2010
Online Access:	http://hdl.handle.net/20.500.11937/7460

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author	Magdis, G. Elbaz, D. Hwang, H. Amblard, A. Arumugam, V. Aussel, H. Blain, A. Bock, J. Boselli, A. Buat, V. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Eales, S. Farrah, D. Franceschini, A. Glenn, J. Griffin, M. Halpern, M. Hatziminaoglou, E. Huang, J. Ibar, E. Isaak, K. Le Floc'h, E. Lagache, G. Levenson, L. Lonsdale, C. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Morrison, G. Nguyen, H. O'Halloran, B. Oliver, S. Omont, A. Owen, F. Page, M. Pannella, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Stevens, J. Strazzullo, V. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Wright, G. Xu, C. Zemcov, M.
author_facet	Magdis, G. Elbaz, D. Hwang, H. Amblard, A. Arumugam, V. Aussel, H. Blain, A. Bock, J. Boselli, A. Buat, V. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Eales, S. Farrah, D. Franceschini, A. Glenn, J. Griffin, M. Halpern, M. Hatziminaoglou, E. Huang, J. Ibar, E. Isaak, K. Le Floc'h, E. Lagache, G. Levenson, L. Lonsdale, C. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Morrison, G. Nguyen, H. O'Halloran, B. Oliver, S. Omont, A. Owen, F. Page, M. Pannella, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Stevens, J. Strazzullo, V. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Wright, G. Xu, C. Zemcov, M.
author_sort	Magdis, G.
building	Curtin Institutional Repository
collection	Online Access
description	Using Herschel Photodetector Array Camera (PACS) and Spectral and Photometric Imaging Receiver (SPIRE) observations of Lockman Hole-North and Great Observatories Origins Deep Survey-North (GOODS-N) as part of the Herschel Multi-tiered Extragalactic Survey (HerMES) project, we explore the far-infrared (IR) properties of a sample of mid-IR-selected starburst-dominated ultraluminous infrared galaxies (ULIRGs) at z~ 2. The selection of the sample is based on the detection of the stellar bump that appears in the spectral energy distribution of star-forming galaxies at 1.6 µm. We derive robust estimates of infrared luminosities (LIR) and dust temperatures (Td) of the population and find that while the luminosities in our sample span less than an order of magnitude (12.24 = log(LIR/L·) = 12.94), they cover a wide range of dust temperatures (25 =Td= 62 K). Galaxies in our sample range from those that are as cold as high-z submillimetre galaxies (SMGs) to those that are as warm as optically faint radio galaxies (OFRGs) and local ULIRGs. Nevertheless, our sample has median Td= 42.3 K, filling the gap between SMGs and OFRGs, bridging the two populations. We demonstrate that a significant fraction of our sample would be missed from ground-based (sub)mm surveys (850-1200 µm), showing that the latter introduce a bias towards the detection of colder sources. We conclude that Herschel observations confirm the existence of high-z ULIRGs warmer than SMGs, show that the mid-IR selection of high-z ULIRGs is not Td dependent, reveal a large dispersion in Td of high-z ULIRGs and provide the means to characterize the bulk of the ULIRG population, free from selection biases introduced by ground-based (sub)mm surveys. © 2010 The Authors. Journal compilation © 2010 RAS.
first_indexed	2025-11-14T06:16:21Z
format	Journal Article
id	curtin-20.500.11937-7460
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T06:16:21Z
publishDate	2010
publisher	Oxford University Press
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-74602023-08-02T06:39:07Z Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies Magdis, G. Elbaz, D. Hwang, H. Amblard, A. Arumugam, V. Aussel, H. Blain, A. Bock, J. Boselli, A. Buat, V. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Eales, S. Farrah, D. Franceschini, A. Glenn, J. Griffin, M. Halpern, M. Hatziminaoglou, E. Huang, J. Ibar, E. Isaak, K. Le Floc'h, E. Lagache, G. Levenson, L. Lonsdale, C. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Morrison, G. Nguyen, H. O'Halloran, B. Oliver, S. Omont, A. Owen, F. Page, M. Pannella, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Stevens, J. Strazzullo, V. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Wright, G. Xu, C. Zemcov, M. Using Herschel Photodetector Array Camera (PACS) and Spectral and Photometric Imaging Receiver (SPIRE) observations of Lockman Hole-North and Great Observatories Origins Deep Survey-North (GOODS-N) as part of the Herschel Multi-tiered Extragalactic Survey (HerMES) project, we explore the far-infrared (IR) properties of a sample of mid-IR-selected starburst-dominated ultraluminous infrared galaxies (ULIRGs) at z~ 2. The selection of the sample is based on the detection of the stellar bump that appears in the spectral energy distribution of star-forming galaxies at 1.6 µm. We derive robust estimates of infrared luminosities (LIR) and dust temperatures (Td) of the population and find that while the luminosities in our sample span less than an order of magnitude (12.24 = log(LIR/L·) = 12.94), they cover a wide range of dust temperatures (25 =Td= 62 K). Galaxies in our sample range from those that are as cold as high-z submillimetre galaxies (SMGs) to those that are as warm as optically faint radio galaxies (OFRGs) and local ULIRGs. Nevertheless, our sample has median Td= 42.3 K, filling the gap between SMGs and OFRGs, bridging the two populations. We demonstrate that a significant fraction of our sample would be missed from ground-based (sub)mm surveys (850-1200 µm), showing that the latter introduce a bias towards the detection of colder sources. We conclude that Herschel observations confirm the existence of high-z ULIRGs warmer than SMGs, show that the mid-IR selection of high-z ULIRGs is not Td dependent, reveal a large dispersion in Td of high-z ULIRGs and provide the means to characterize the bulk of the ULIRG population, free from selection biases introduced by ground-based (sub)mm surveys. © 2010 The Authors. Journal compilation © 2010 RAS. 2010 Journal Article http://hdl.handle.net/20.500.11937/7460 10.1111/j.1365-2966.2010.17551.x Oxford University Press unknown
spellingShingle	Magdis, G. Elbaz, D. Hwang, H. Amblard, A. Arumugam, V. Aussel, H. Blain, A. Bock, J. Boselli, A. Buat, V. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Eales, S. Farrah, D. Franceschini, A. Glenn, J. Griffin, M. Halpern, M. Hatziminaoglou, E. Huang, J. Ibar, E. Isaak, K. Le Floc'h, E. Lagache, G. Levenson, L. Lonsdale, C. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Morrison, G. Nguyen, H. O'Halloran, B. Oliver, S. Omont, A. Owen, F. Page, M. Pannella, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Stevens, J. Strazzullo, V. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Wright, G. Xu, C. Zemcov, M. Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies
title	Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies
title_full	Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies
title_fullStr	Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies
title_full_unstemmed	Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies
title_short	Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies
title_sort	herschel reveals a tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies
url	http://hdl.handle.net/20.500.11937/7460

Herschel reveals a Tdust-unbiased selection of z~ 2 ultraluminous infrared galaxies

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