Mid-infrared spectroscopy of infrared-luminous galaxies at z similar to 0.5-3

Hernán-Caballero, A, Pérez-Fournon, I, Hatziminaoglou, E, Afonso-Luis, A, Rowan-Robinson, M, Rigopoulou, D, Farrah, D, Lonsdale, C J, Babbedge, T, Clements, D, Serjeant, S, Pozzi, F, Vaccari, M, Montenegro-Montes, F M, Valtchanov, I, González-Solares, E, Oliver, S, Shupe, D, Gruppioni, C, Vila-Vilaró, B, Lari, C and La Franca, F (2009) Mid-infrared spectroscopy of infrared-luminous galaxies at z similar to 0.5-3. Monthly Notices of the Royal Astronomical Society, 395 (3). pp. 1695-1722. ISSN 0035-8711

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Abstract

We present results on low-resolution mid-infrared (MIR) spectra of 70 IR-luminous galaxies obtained with the infrared spectrograph (IRS) onboard Spitzer. We selected sources from the European Large Area Infrared Survey with S-15 > 0.8 mJy and photometric or spectroscopic z > 1. About half of the samples are quasi-stellar objects (QSOs) in the optical, while the remaining sources are galaxies, comprising both obscured active galactic nuclei (AGN) and starbursts. Redshifts were obtained from optical spectroscopy, photometric redshifts and the IRS spectra. The later turn out to be reliable for obscured and/or star-forming sources, thus becoming an ideal complement to optical spectroscopy for redshift estimation.

Item Type: Article
Additional Information: There are other external co-authors not recorded et al
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Duncan Farrah
Date Deposited: 06 Feb 2012 18:50
Last Modified: 07 Mar 2017 08:44
URI: http://sro.sussex.ac.uk/id/eprint/18534

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