HerMES : SPIRE detection of high redshift massive compact galaxies in GOODS-N field
Abstract
We have analysed the rest-frame far infrared (FIR) properties of a sample of massive (Mstar > 10^11Msun) galaxies at 2<z<3 in the GOODS (Great Observatories Origins Deep Survey) North field using the Spectral and Photometric Imaging Receiver (SPIRE) instrument aboard the Herschel Space Observatory. To conduct this analysis we take advantage of the data from the HerMES key program. The sample comprises 45 massive galaxies with structural parameters characterised with HST NICMOS-3. We study detections at submm Herschel bands, together with Spitzer 24{\mu}m data, as a function of the morphological type, mass and size. We find that 26/45 sources are detected at MIPS-24{\mu}m and 15/45 (all MIPS-24{\mu}m detections) are detected at SPIRE-250{\mu}m, with disk-like galaxies more easily detected. We derive star formation rates (SFR) and specific star formation rates (sSFR) by fitting the spectral energy distribution (SED) of our sources, taking into account non-detections for SPIRE and systematic effects for MIPS derived quantities. We find that the mean SFR for the spheroidal galaxies (50-100 Msun*yr^-1) is substantially (a factor ~ 3) lower than the mean value presented by disk-like galaxies (250-300 Msun*yr^-1).
Cite
@article{arxiv.1010.0673,
title = {HerMES : SPIRE detection of high redshift massive compact galaxies in GOODS-N field},
author = {A. Cava and G. Rodighiero and I. Perez-Fournon and F. Buitrago and I. Trujillo and B. Altieri and A. Amblard and R. Auld and J. Bock and D. Brisbin and D. Burgarella and N. Castro-Rodriguez and P. Chanial and M. Cirasuolo and D. L. Clements and C. J. Conselice and A. Cooray and S. Eales and D. Elbaz and P. Ferrero and A. Franceschini and J. Glenn and E. A. Gonzalez Solares and M. Griffin and E. Ibar and R. J. Ivison and L. Marchetti and G. E. Morrison and A. M. J. Mortier and S. J. Oliver and M. J. Page and A. Papageorgiou and C. P. Pearson and M. Pohlen and J. I. Rawlings and G. Raymond and D. Rigopoulou and I. G. Roseboom and M. Rowan-Robinson and D. Scott and N. Seymour and A. J. Smith and M. Symeonidis and K. E. Tugwell and M. Vaccari and I. Valtchanov and J. D. Vieira and L. Vigroux and L. Wang and G. Wright},
journal= {arXiv preprint arXiv:1010.0673},
year = {2010}
}
Comments
6 pages, 3 figure, 1 table, MNRAS Herschel issue, in V2 added references and corrected typos