2009/02/28 by Cheng Li, Dimitri A. Gadotti, Shude Mao +1
Environmental Science · Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Elliptical galaxy #Fundamental plane (elliptical galaxies) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Lenticular galaxy #Luminosity #Physics #Redshift #Remote Sensing in Agriculture #Sky #Star formation #Stellar mass #Surface brightness #Surface brightness fluctuation #astro-ph.CO #astro-ph.GA
paper · pdf · doi:10.1111/j.1365-2966.2009.15028.x
8 pages, 6 figures, accepted for publication in MNRAS, a new section is added to examine the dependence on local density
arxiv created 2009/05/12 · openalex publication_date 2009/06/30 · arxiv updated 2015/05/12 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
We study the clustering properties of barred galaxies using data from the Sloan Digital Sky Survey. We compute projected redshift-space two-point cross-correlation functions wp(rp) for a sample of nearly 1000 galaxies for which we have performed detailed structural decompositions using the methods described in Gadotti. The sample includes 286 barred galaxies. The clustering of barred and unbarred galaxies of similar stellar mass is indistinguishable over all the scales probed (∼20 kpc–30 Mpc). This result also holds even if the sample is restricted to bars with bluer g−i colours (and hence younger ages). Our result also does not change if we split our sample of barred galaxies according to bar-to-total luminosity ratio, bar boxyness, effective surface brightness, length or the shape of the surface density profile within the bar. There is a hint that red, elliptical bars are more strongly clustered than red and less elliptical bars, on scales ≳1 Mpc, although the statistical significance is not high. We conclude that there is no significant evidence that bars are a product of mergers or interactions. We tentatively interpret the stronger clustering of the more elliptical bars as evidence that they are located in older galaxies, which reside in more massive haloes.