HerMES: SPIRE galaxy number counts at 250, 350 and 500 microns

Emission at far-infrared wavelengths makes up a significant fraction of the total light detected from galaxies over the age of Universe. Herschel provides an opportunity for studying galaxies at the peak wavelength of their emission. Our aim is to provide a benchmark for models of galaxy population...

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Bibliographic Details
Published in:arXiv.org 2010-05
Main Authors: Oliver, S J, Wang, L, Smith, A J, Altieri, B, Amblard, A, Arumugam, V, Auld, R, Aussel, H, Babbedge, T, Blain, A, Bock, J, Boselli, A, Buat, V, Burgarella, D, Castro-Rodriguez, N, Cava, A, Chanial, P, Clements, D L, Conley, A, Conversi, L, Cooray, A, Dowell, C D, Dwek, E, Eales, S, Elbaz, D, Fox, M, Franceschini, A, Gear, W, Glenn, J, Griffin, M, Halpern, M, Hatziminaoglou, E, Ibar, E, Isaak, K, Ivison, R J, Lagache, G, Levenson, L, N Lu, Madden, S, Maffei, B, Mainetti, G, Marchetti, L, Mitchell-Wynne, K, Mortier, A M J, Nguyen, H T, O'Halloran, B, Omont, A, Page, M J, Panuzzo, P, Papageorgiou, A, Pearson, C P, Perez-Fournon, I, Pohlen, M, Rawlings, J I, Raymond, G, Rigopoulou, D, Rizzo, D, Roseboom, I G, Rowan-Robinson, M, M Sanchez Portal, Savage, R, Schulz, B, Scott, Douglas, Seymour, N, Shupe, D L, Stevens, J A, Symeonidis, M, Trichas, M, Tugwell, K E, Vaccari, M, Valiante, E, Valtchanov, I, Vieira, J D, Vigroux, L, Ward, R, Wright, G, Xu, C K, Zemcov, M
Format: Article
Language:English
Subjects:
Astronomical models
Counting
Emission analysis
Far infrared radiation
Galactic evolution
Galaxies
Space telescopes
Stars & galaxies
Universe
Variations
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Summary:Emission at far-infrared wavelengths makes up a significant fraction of the total light detected from galaxies over the age of Universe. Herschel provides an opportunity for studying galaxies at the peak wavelength of their emission. Our aim is to provide a benchmark for models of galaxy population evolution and to test pre-existing models of galaxies. With the Herschel Multi-tiered Extra-galactic survey, HerMES, we have observed a number of fields of different areas and sensitivity using the SPIRE instrument on Herschel. We have determined the number counts of galaxies down to ~20 mJy. Our constraints from directly counting galaxies are consistent with, though more precise than, estimates from the BLAST fluctuation analysis. We have found a steep rise in the Euclidean normalised counts at
ISSN:2331-8422
DOI:10.48550/arxiv.1005.2184