Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5487755 | New Astronomy | 2018 | 11 Pages |
Abstract
We cross-correlate the main AMF DR9 catalog with a number of cluster catalogs in different wavebands (Optical, X-ray). We compare our catalog with other SDSS-based ones such as the redMaPPer (26,350 clusters) and the Wen etâ¯al. (WHL) (132,684 clusters) in the same area of the sky and in the overlapping redshift range. We match 97% of the richest Abell clusters (Richness group 3), the same as WHL, while redMaPPer matches â¯â¼â¯90% of these clusters. Considering AMF DR9 richness bins, redMaPPer does not have one-to-one matches for 70% of our lowest richness clusters (20â¯<â¯Î200â¯<â¯40), while WHL matches 54% of these missed clusters (not present in redMaPPer). redMaPPer consistently does not possess one-to-one matches for â¯â¼â¯20% AMF DR9 clusters with Î200â¯>â¯40, while WHL matches â¯â¥â¯70% of these missed clusters on average. For comparisons with X-ray clusters, we match the AMF catalog with BAX, MCXC and a combined catalog from NORAS and REFLEX. We consistently obtain a greater number of one-to-one matches for X-ray clusters across higher luminosity bins (Lxâ¯>â¯6â¯Ãâ¯1044 ergs/sec) than redMaPPer while WHL matches the most clusters overall. For the most luminous clusters (Lxâ¯>â¯8), our catalog performs equivalently to WHL. This new catalog provides a wider sample than redMaPPer while retaining many fewer objects than WHL.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
P. Banerjee, T. Szabo, E. Pierpaoli, G. Franco, M. Ortiz, A. Oramas, B. Tornello,