2006/11/29 by P. R. Eisenhardt, Peter Eisenhardt, R. De Propris +8
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Coma Cluster #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Gamma-ray bursts and supernovae #Photometry (optics) #Physics #Stars #astro-ph
paper · pdf · doi:10.1086/511688
published as Astrophys.J.Suppl.169:225,2007 · 41 pages, 5 figures, 18 data tables attached to source files or available on request from R. De propris. Accepted for publication in Astrophysical Journal Supplement Series
arxiv created 2006/11/29 · openalex publication_date 2007/04/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present a set of UBVRIzJHKs photometry for 745 J+H band selected objects in a 22.5' × 29.2' region centered on the core of the Coma cluster. This includes 516 galaxies and is at least 80% complete to H=16, with a spectroscopically complete sample of 111 cluster members (nearly all with morphological classification) for H < 14.5. For each object we present total \citekron80 magnitudes and aperture photometry. As an example, we use these data to derive color-magnitude relations for Coma early-type galaxies, measure the intrinsic scatter of these relations and its dependence on galaxy mass, and address the issue of color gradients. We find that the color gradients are mild and that the intrinsic scatter about the color-magnitude relation is small (∼ 0.05 mag in U-V and less than ∼ 0.03 in B-R, V-I or J-K). There is no evidence that the intrinsic scatter varies with galaxy luminosity, suggesting that the cluster red sequence is established at early epochs over a range of ∼ 100 in stellar mass.