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HerMES: SPIRE detection of high-redshift massive compact galaxies in GOODS-N field

Cava, A., Rodighiero, G., Pérez-Fournon, I., Buitrago, F., Trujillo, I., Altieri, B., Amblard, A., Auld, Robbie Richard, Bock, J., Brisbin, D., Burgarella, D., Castro-Rodríguez, N., Chanial, P., Cirasuolo, M., Clements, D. L., Conselice, C. J., Cooray, A., Eales, Stephen Anthony ORCID:, Elbaz, D., Ferrero, P., Franceschini, A., Glenn, J., González Solares, E. A., Griffin, Matthew Joseph ORCID:, Ibar, E., Ivison, R. J., Marchetti, L., Morrison, G. E., Mortier, A. M. J., Oliver, S. J., Page, M. J., Papageorgiou, Andreas, Pearson, C. P., Pohlen, Michael, Rawlings, J. I., Raymond, Gwenifer, Rigopoulou, D., Roseboom, I. G., Rowan-Robinson, M., Scott, D., Seymour, N., Smith, A. J., Symeonidis, M., Tugwell, K. E., Vaccari, M., Valtchanov, I., Vieira, J. D., Vigroux, L., Wang, L. and Wright, G. 2010. HerMES: SPIRE detection of high-redshift massive compact galaxies in GOODS-N field. Monthly Notices of the Royal Astronomical Society: Letters 409 (1) , L19-L24. 10.1111/j.1745-3933.2010.00964.x

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We have analysed the rest-frame far-infrared properties of a sample of massive (M★ > 1011 M⊙) galaxies at 2 ≲z≲ 3 in the Great Observatories Origins Deep Survey-North (GOODS-N) 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 Herschel Multi-tiered Extragalactic Survey (HerMES) key programme. The sample comprises 45 massive galaxies with structural parameters characterized with HST NICMOS-3. We study detections at submm Herschel bands, together with Spitzer 24-μm data, as a function of the morphological type, mass and size. We find that 26/45 sources are detected at MIPS 24 μm and 15/45 (all MIPS 24-μm detections) are detected at SPIRE 250 μm, with disc-like galaxies more easily detected. We derive star formation rates (SFRs) and specific star formation rates (sSFRs) by fitting the spectral energy distribution 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 M⊙ yr−1) is substantially (a factor ∼3) lower than the mean value presented by disc-like galaxies (∼250–300 M⊙ yr−1).

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: galaxies: evolution; galaxies: high-redshift; galaxies: star formation; infrared: galaxies
Publisher: Wiley
ISSN: 1745-3925
Last Modified: 18 Oct 2022 12:42

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