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The HerMES SPIRE submillimeter local luminosity function [Letter]

Vaccari, M., Marchetti, L., Franceschini, A., Altieri, B., Amblard, A., Arumugam, V., Auld, Robbie Richard, Aussel, H., Babbedge, T., Blain, A., Bock, J., Boselli, A., Buat, V., Burgarella, D., Castro-Rodríguez, N., Cava, A., Chanial, P., Clements, D. L., Conley, A., Conversi, L., Cooray, A., Dowell, C. D., Dwek, E., Dye, S., Eales, Stephen Anthony, Elbaz, D., Farrah, D., Fox, M., Gear, Walter Kieran, Glenn, J., González Solares, E. A., Griffin, Matthew Joseph, Halpern, M., Hatziminaoglou, E., Huang, J., Ibar, E., Isaak, Kate Gudrun, Ivison, R. J., Lagache, G., Levenson, L., Lu, N., Madden, S., Maffei, B., Mainetti, G., Mortier, A. M. J., Nguyen, H. T., O'Halloran, B., Oliver, S. J., Omont, A., Page, M. J., Panuzzo, P., Papageorgiou, Andreas, Pearson, C. P., Pérez-Fournon, I., Pohlen, M., Rawlings, J. I., Raymond, Gwenifer, Rigopoulou, D., Rizzo, D., Rodighiero, G., Roseboom, I. G., Rowan-Robinson, M., Sánchez Portal, M., Schulz, B., Scott, D., Seymour, N., Shupe, D. L., Smith, A. J., Stevens, J. A., Symeonidis, M., Trichas, M., Tugwell, K. E., Valiante, Elisabetta, Valtchanov, I., Vigroux, L., Wang, L., Ward, R., Wright, G., Xu, C. K. and Zemcov, M. 2010. The HerMES SPIRE submillimeter local luminosity function [Letter]. Astronomy and Astrophysics 518 , L20. 10.1051/0004-6361/201014694

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Abstract

Local luminosity functions are fundamental benchmarks for high-redshift galaxy formation and evolution studies as well as for models describing these processes. Determining the local luminosity function in the submillimeter range can help to better constrain in particular the bolometric luminosity density in the local Universe, and Herschel offers the first opportunity to do so in an unbiased way by imaging large sky areas at several submillimeter wavelengths. We present the first Herschel measurement of the submillimeter 0 < z < 0.2 local luminosity function and infrared bolometric (8−1000 μm) local luminosity density based on SPIRE data from the HerMES Herschel key program over 14.7 deg2. Flux measurements in the three SPIRE channels at 250, 350 and 500 μm are combined with Spitzer photometry and archival data. We fit the observed optical-to-submillimeter spectral energy distribution of SPIRE sources and use the 1/Vmax estimator to provide the first constraints on the monochromatic 250, 350 and 500 μm as well as on the infrared bolometric (8−1000 μm) local luminosity function based on Herschel data. We compare our results with modeling predictions and find a slightly more abundant local submillimeter population than predicted by a number of models. Our measurement of the infrared bolometric (8−1000 μm) local luminosity function suggests a flat slope at low luminosity, and the inferred local luminosity density, 1.31+0.24 −0.21 × 108 L� Mpc−3, is consistent with the range of values reported in recent literature.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Uncontrolled Keywords: galaxies ; luminosity function ; mass functions – galaxies ; evolution – galaxies ; statistics – submillimeter ; galaxies.
Publisher: EDP Sciences
ISSN: 0004-6361
Last Modified: 04 Jun 2017 02:48
URI: http://orca.cf.ac.uk/id/eprint/12205

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