HerMES: Far infrared properties of known AGN in the HerMES fields

Nuclear and starburst activity are known to often occur concomitantly. Herschel-SPIRE provides sampling of the far-infrared (FIR) spectral energy distributions (SEDs) of type 1 and type 2 AGN, allowing for the separation between the hot dust (torus) and cold dust (starburst) emission. We study large...

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Main Authors:	Hatziminaoglou, E., Omont, A., Stevens, J., Amblard, A., Arumugam, V., Auld, R., Aussel, H., Babbedge, T., Blain, A., Bock, J., Boselli, A., Buat, V., Burgarella, D., Castro-Rodríguez, N., Cava, A., Chanial, P., Clements, D., Conley, A., Conversi, L., Cooray, A., Dowell, C., Dwek, E., Dye, S., Eales, S., Elbaz, D., Farrah, D., Fox, M., Franceschini, A., Gear, W., Glenn, J., González Solares, E., Griffin, M., Halpern, M., Ibar, E., Isaak, K., Ivison, R., Lagache, G., Levenson, L., Lu, N., Madden, S., Maffei, B., Mainetti, G., Marchetti, L., Mortier, A., Nguyen, H., O'Halloran, B., Oliver, S., Page, M., Panuzzo, P., Papageorgiou, A., Pearson, C., Pérez-Fournon, I., Pohlen, M., Rawlings, J., Rigopoulou, D., Rizzo, D., Roseboom, I., Rowan-Robinson, M., Sanchez Portal, M., Schulz, B., Scott, D., Seymour, Nick, Shupe, D., Smith, A., Symeonidis, M., Trichas, M., Tugwell, K., Vaccari, M., Valtchanov, I., Vigroux, L., Wang, L., Ward, R., Wright, G., Xu, C., Zemcov, M.
Format:	Journal Article
Published:	EDP Sciences 2010
Online Access:	http://hdl.handle.net/20.500.11937/24160

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author	Hatziminaoglou, E. Omont, A. Stevens, J. Amblard, A. Arumugam, V. Auld, R. Aussel, H. Babbedge, T. Blain, A. Bock, J. Boselli, A. Buat, V. Burgarella, D. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Dye, S. Eales, S. Elbaz, D. Farrah, D. Fox, M. Franceschini, A. Gear, W. Glenn, J. González Solares, E. Griffin, M. Halpern, M. Ibar, E. Isaak, K. Ivison, R. Lagache, G. Levenson, L. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Mortier, A. Nguyen, H. O'Halloran, B. Oliver, S. Page, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rawlings, J. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Sanchez Portal, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Ward, R. Wright, G. Xu, C. Zemcov, M.
author_facet	Hatziminaoglou, E. Omont, A. Stevens, J. Amblard, A. Arumugam, V. Auld, R. Aussel, H. Babbedge, T. Blain, A. Bock, J. Boselli, A. Buat, V. Burgarella, D. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Dye, S. Eales, S. Elbaz, D. Farrah, D. Fox, M. Franceschini, A. Gear, W. Glenn, J. González Solares, E. Griffin, M. Halpern, M. Ibar, E. Isaak, K. Ivison, R. Lagache, G. Levenson, L. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Mortier, A. Nguyen, H. O'Halloran, B. Oliver, S. Page, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rawlings, J. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Sanchez Portal, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Ward, R. Wright, G. Xu, C. Zemcov, M.
author_sort	Hatziminaoglou, E.
building	Curtin Institutional Repository
collection	Online Access
description	Nuclear and starburst activity are known to often occur concomitantly. Herschel-SPIRE provides sampling of the far-infrared (FIR) spectral energy distributions (SEDs) of type 1 and type 2 AGN, allowing for the separation between the hot dust (torus) and cold dust (starburst) emission. We study large samples of spectroscopically confirmed type 1 and type 2 AGN lying within the Herschel Multi-tiered Extragalactic Survey (HerMES) fields observed during the science demonstration phase, aiming to understand their FIR colour distributions and constrain their starburst contributions. We find that one third of the spectroscopically confirmed AGN in the HerMES fields have 5s detections at 250 µm, in agreement with previous (sub)mm AGN studies. Their combined Spitzer-MIPS and Herschel-SPIRE colours (specifically S250/S 70 vs S70/S24) quite clearly separate them from the non-AGN, star forming galaxy population, as their 24 µm flux is dominated by the hot torus emission. However, their SPIRE colours alone do not differ from those of non-AGN galaxies. SED fitting shows that all those AGN need a starburst component to fully account for their FIR emission. For objects at z > 2 we find a correlation between the infrared luminosity attributed to the starburst component, LSB, and the AGN accretion luminosity, L acc, with LSB proptoLacc0.35. Type 2 AGN detected at 250 µm show on average higher LSB than type 1 objects but their number is still too low to establish whether this trend indicates stronger star formation activity. © 2010 ESO.
first_indexed	2025-11-14T07:51:21Z
format	Journal Article
id	curtin-20.500.11937-24160
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T07:51:21Z
publishDate	2010
publisher	EDP Sciences
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-241602017-09-13T15:09:36Z HerMES: Far infrared properties of known AGN in the HerMES fields Hatziminaoglou, E. Omont, A. Stevens, J. Amblard, A. Arumugam, V. Auld, R. Aussel, H. Babbedge, T. Blain, A. Bock, J. Boselli, A. Buat, V. Burgarella, D. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Dye, S. Eales, S. Elbaz, D. Farrah, D. Fox, M. Franceschini, A. Gear, W. Glenn, J. González Solares, E. Griffin, M. Halpern, M. Ibar, E. Isaak, K. Ivison, R. Lagache, G. Levenson, L. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Mortier, A. Nguyen, H. O'Halloran, B. Oliver, S. Page, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rawlings, J. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Sanchez Portal, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Ward, R. Wright, G. Xu, C. Zemcov, M. Nuclear and starburst activity are known to often occur concomitantly. Herschel-SPIRE provides sampling of the far-infrared (FIR) spectral energy distributions (SEDs) of type 1 and type 2 AGN, allowing for the separation between the hot dust (torus) and cold dust (starburst) emission. We study large samples of spectroscopically confirmed type 1 and type 2 AGN lying within the Herschel Multi-tiered Extragalactic Survey (HerMES) fields observed during the science demonstration phase, aiming to understand their FIR colour distributions and constrain their starburst contributions. We find that one third of the spectroscopically confirmed AGN in the HerMES fields have 5s detections at 250 µm, in agreement with previous (sub)mm AGN studies. Their combined Spitzer-MIPS and Herschel-SPIRE colours (specifically S250/S 70 vs S70/S24) quite clearly separate them from the non-AGN, star forming galaxy population, as their 24 µm flux is dominated by the hot torus emission. However, their SPIRE colours alone do not differ from those of non-AGN galaxies. SED fitting shows that all those AGN need a starburst component to fully account for their FIR emission. For objects at z > 2 we find a correlation between the infrared luminosity attributed to the starburst component, LSB, and the AGN accretion luminosity, L acc, with LSB proptoLacc0.35. Type 2 AGN detected at 250 µm show on average higher LSB than type 1 objects but their number is still too low to establish whether this trend indicates stronger star formation activity. © 2010 ESO. 2010 Journal Article http://hdl.handle.net/20.500.11937/24160 10.1051/0004-6361/201014679 EDP Sciences unknown
spellingShingle	Hatziminaoglou, E. Omont, A. Stevens, J. Amblard, A. Arumugam, V. Auld, R. Aussel, H. Babbedge, T. Blain, A. Bock, J. Boselli, A. Buat, V. Burgarella, D. Castro-Rodríguez, N. Cava, A. Chanial, P. Clements, D. Conley, A. Conversi, L. Cooray, A. Dowell, C. Dwek, E. Dye, S. Eales, S. Elbaz, D. Farrah, D. Fox, M. Franceschini, A. Gear, W. Glenn, J. González Solares, E. Griffin, M. Halpern, M. Ibar, E. Isaak, K. Ivison, R. Lagache, G. Levenson, L. Lu, N. Madden, S. Maffei, B. Mainetti, G. Marchetti, L. Mortier, A. Nguyen, H. O'Halloran, B. Oliver, S. Page, M. Panuzzo, P. Papageorgiou, A. Pearson, C. Pérez-Fournon, I. Pohlen, M. Rawlings, J. Rigopoulou, D. Rizzo, D. Roseboom, I. Rowan-Robinson, M. Sanchez Portal, M. Schulz, B. Scott, D. Seymour, Nick Shupe, D. Smith, A. Symeonidis, M. Trichas, M. Tugwell, K. Vaccari, M. Valtchanov, I. Vigroux, L. Wang, L. Ward, R. Wright, G. Xu, C. Zemcov, M. HerMES: Far infrared properties of known AGN in the HerMES fields
title	HerMES: Far infrared properties of known AGN in the HerMES fields
title_full	HerMES: Far infrared properties of known AGN in the HerMES fields
title_fullStr	HerMES: Far infrared properties of known AGN in the HerMES fields
title_full_unstemmed	HerMES: Far infrared properties of known AGN in the HerMES fields
title_short	HerMES: Far infrared properties of known AGN in the HerMES fields
title_sort	hermes: far infrared properties of known agn in the hermes fields
url	http://hdl.handle.net/20.500.11937/24160

HerMES: Far infrared properties of known AGN in the HerMES fields

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