Browsing Research publications by Author "Rogers, B."

Now showing items 1-3 of 3

    • Decoding the spectra of SDSS early-type galaxies : New indicators of age and recent star formation 

      Rogers, B.; Ferreras, I.; Lahav, O.; Bernardi, M.; Kaviraj, S.; Yi, S.K. (2007-12-01)
      We apply principal component analysis (PCA) to a sample of early-type galaxies from the Sloan Digital Sky Survey (SDSS) in order to infer differences in their star formation histories from their unresolved stellar populations. ...

    • The role of environment on the formation of early-type galaxies 

      Rogers, B.; Ferreras, I.; Kaviraj, S.; Pasquali, A.; Bernardi, M.; Lahav, O. (2010-06-01)
      The effect of environment on galaxy formation poses one of the best constraints on the interplay between mass assembly and star formation in galaxies. We present here a detailed study of the stellar populations of a ...

    • Star formation and nuclear activity in close pairs of early-type galaxies 

      Rogers, B.; Ferreras, I.; Kaviraj, S.; Pasquali, A.; Sarzi, M. (2009-11-01)
      We extract from the Sloan Digital Sky Survey a sample of 347 systems involving early-type galaxies separated by less than 30 kpc, in projection, and 500 km s−1 in radial velocity. These close pairs are likely progenitors ...