Abstract
We have carried out two extremely deep surveys with SPIRE, one of the two cameras on Herschel, at 250 μm, close to the peak of the far-infrared background. We have used the results to investigate the evolution of the rest-frame 250-μm luminosity function out to z = 2. We find evidence for strong evolution out to z ≃ 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.
| Original language | English |
|---|---|
| Article number | L23 |
| Journal | Astronomy and Astrophysics |
| Volume | 518 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
Keywords
- Galaxies: evoluton
- Galaxies: formation
- Galaxies: high-redshift
- Submillimeter: galaxies
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