The Star Formation Histories of Galaxies in Distant Clusters

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

15 pages, LaTeX, 10 figures, uses emulateapj.sty, ApJ in press

Scientific paper

10.1086/307322

We present a detailed analysis of the spectroscopic catalog of galaxies in 10 distant clusters from Dressler et al. (1999, D99). We investigate the nature of the different spectral classes defined by D99 including star forming, post-starburst and passive galaxy populations, and reproduce their basic properties using our spectral synthesis model. We attempt to identify the evolutionary pathways between the various spectral classes in order to search for the progenitors of the numerous post-starburst galaxies. The comparison of the spectra of the distant galaxy populations with samples drawn from the local Universe leads us to identify a significant population of dust-enshrouded starburst galaxies, showing both strong Balmer absorption and relatively modest [OII] emission, that we believe are the most likely progenitors of the post-starburst population. We present the differences between the field and cluster galaxies at z=0.4-0.5. We then compare the spectral and the morphological properties of the distant cluster galaxies, exploring the connection between the quenching of star formation inferred from the spectra and the strong evolution of the S0 population discussed by Dressler et al. (1997). We conclude that either two different timescales and/or two different physical processes are responsible for the spectral and the morphological transformation.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

The Star Formation Histories of Galaxies in Distant Clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Star Formation Histories of Galaxies in Distant Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Star Formation Histories of Galaxies in Distant Clusters will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-5766

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.