The 2dF Galaxy Redshift Survey: The dependence of galaxy clustering on luminosity and spectral type

Details The 2dF Galaxy Redshift Survey: The dependence of galaxy clustering on luminosity and spectral type The 2dF Galaxy Redshift Survey: The dependence of galaxy clustering on luminosity and spectral type

2001-12-03

arxiv.org/abs/astro-ph/0112043v3

Mon.Not.Roy.Astron.Soc.332:827,2002

Astronomy and Astrophysics

Astrophysics

accepted by MNRAS after minor revision. 13 pages, 10 figures

Scientific paper

10.1046/j.1365-8711.2002.05348.x

We investigate the dependence of galaxy clustering on luminosity and spectral type using the 2dF Galaxy Redshift Survey (2dFGRS). Spectral types are assigned using the principal component analysis of Madgwick et al. We divide the sample into two broad spectral classes: galaxies with strong emission lines (`late-types'), and more quiescent galaxies (`early-types'). We measure the clustering in real space, free from any distortion of the clustering pattern due to peculiar velocities, for a series of volume-limited samples. The projected correlation functions of both spectral types are well described by a power law for transverse separations in the range 2 < (sigma/Mpc/h) < 15, with a marginally steeper slope for early-types than late-types. Both early and late types have approximately the same dependence of clustering strength on luminosity, with the clustering amplitude increasing by a factor of ~2.5 between L* and 4 L*. At all luminosities, however, the correlation function amplitude for the early-types is ~50% higher than that of the late-types. These results support the view that luminosity, and not type, is the dominant factor in determining how the clustering strength of the whole galaxy population varies with luminosity.

Affiliated with

Also associated with

No associations

Rating

The 2dF Galaxy Redshift Survey: The dependence of galaxy clustering on luminosity and spectral type 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 2dF Galaxy Redshift Survey: The dependence of galaxy clustering on luminosity and spectral type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 2dF Galaxy Redshift Survey: The dependence of galaxy clustering on luminosity and spectral type will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-234710