We have carried out two extremely deep surveys with SPIRE, one of the two cameras on Herschel, at 250 mu m, close to the peak of the far-infrared background. We have used the results to investigate the evolution of the rest-frame 250-mu m luminosity function out to z = 2. We find evidence for strong evolution out to z similar or equal to 1 but evidence for at most weak evolution beyond this redshift. Our results suggest that a significant part of the stars and metals in the universe today were formed at z <= 1.4 in spiral galaxies.
First results from HerMES on the evolution of the submillimetre luminosity function / Eales, Sa; Raymond, G; Roseboom, Ig; Altieri, B; Amblard, A; Arumugam, V; Auld, R; Aussel, H; Babbedge, T; Blain, A; Bock, J; Boselli, A; Brisbin, D; Buat, V; Burgarella, D; Castro-Rodriguez, N; Cava, A; Chanial, P; Clements, Dl; Conley, A; Conversi, L; Cooray, A; Dowell, Cd; Dwek, E; Dye, S; Elbaz, D; Farrah, D; Fox, M; Franceschini, A; Gear, W; Glenn, J; Solares, Eag; Griffin, M; Harwit, M; Hatziminaoglou, E; Huang, J; Ibar, E; Isaak, K; Ivison, Rj; Lagache, G; Levenson, L; Lonsdale, Cj; Lu, N; Madden, S; Maffei, B; Mainetti, G; Marchetti, L; Morrison, Ge; Mortier, Amj; Nguyen, Ht; O'Halloran, B; Oliver, Sj; Omont, A; Owen, Fn; Page, Mj; Pannella, M; Panuzzo, P; Papageorgiou, A; Pearson, Cp; Perez-Fournon, I; Pohlen, M; Rawlings, Ji; Rigopoulou, D; Rizzo, D; Rowan-Robinson, M; Portal, Ms; Schulz, B; Scott, D; Seymour, N; Shupe, Dl; Smith, Aj; Stevens, Ja; Strazzullo, V; Symeonidis, M; Trichas, M; Tugwell, Ke; Vaccari, M; Valtchanov, I; Vigroux, L; Wang, L; Ward, R; Wright, G; Xu, Ck; Zemcov, M. - In: ASTRONOMY & ASTROPHYSICS. - ISSN 1432-0746. - 518:(2010). [10.1051/0004-6361/201014675]
First results from HerMES on the evolution of the submillimetre luminosity function
Strazzullo V;
2010-01-01
Abstract
We have carried out two extremely deep surveys with SPIRE, one of the two cameras on Herschel, at 250 mu m, close to the peak of the far-infrared background. We have used the results to investigate the evolution of the rest-frame 250-mu m luminosity function out to z = 2. We find evidence for strong evolution out to z similar or equal to 1 but evidence for at most weak evolution beyond this redshift. Our results suggest that a significant part of the stars and metals in the universe today were formed at z <= 1.4 in spiral galaxies.Pubblicazioni consigliate
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