Physics
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aps..osf.p1011k&link_type=abstract
American Physical Society, Fall 2007 Meeting of the Ohio-Region Section of APS, October 19-20, 2007, abstract #P1.011
Physics
Scientific paper
We develop a procedure for building a large catalog of cluster galaxies and their photometric properties, as measured with CCDs. Our first case, Abell 160, is relatively nearby and we have already obtained spectroscopic redshifts for its brightest galaxies. We have mosaiced this cluster in R and V filters using a CCD imager on the 1.3-meter McGraw-Hill telescope. We fit a world coordinate system to the images using the software ``WCStools.'' We use ``SExtractor'' to extract sources from the images. We create software for merging catalogs in such a way as to avoid double counting, to reject cosmic rays, and to combine redundant measurements. The measured properties include magnitude, ellipticity, position angle, size, and color (V-R). We investigate the efficacy of our separation of galaxies and stars and find that it begins breaking down around R=19.0. We attempt to separate cluster members from foreground and background galaxies using the color-magnitude relation. In future work, we will investigate substructure (clumping) within clusters and its correlation with galaxy properties (especially color, size and morphology).
Koontz Craig
Pinkney Jason
No associations
LandOfFree
Measuring Galaxy Properties in the Cluster Abell 160 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 Measuring Galaxy Properties in the Cluster Abell 160, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measuring Galaxy Properties in the Cluster Abell 160 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-826955