English

Cosmic Star Formation History

Astrophysics 2009-10-28 v1

Abstract

I review some recent progress made in our understanding of galaxy evolution and the cosmic history of star formation. Like bookends, the results obtained from deep ground-based spectroscopy and from the Hubble Deep Field imaging survey put brackets around the intermediate redshift interval, 1<z<21<z<2, where starbirth probably peaked at a rate 10 times higher than today. The steady decline observed since z1z\sim 1 is largely associated with late-type galaxies. At z2.5z\gtrsim 2.5, the Lyman-break selected objects may represent the precursors of present-day spheroids, but appear, on average, quite underluminous relative to the expectations of the standard early-and-rapidly forming picture for spheroidal systems. The observed ultraviolet light density accounts for the bulk of the metals seen today in ``normal'' massive galaxies.

Keywords

Cite

@article{arxiv.astro-ph/9612157,
  title  = {Cosmic Star Formation History},
  author = {Piero Madau},
  journal= {arXiv preprint arXiv:astro-ph/9612157},
  year   = {2009}
}

Comments

10 pages, 3 figures, LaTeX with AIP "aipproc" style file. Review Presented at the 1996 7th Annual October Astrophysics Conference in Maryland, ``Star Formation Near and Far''

R2 v1 2026-07-22T09:31:41.514Z