کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5487755 | 1523720 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An optical catalog of galaxy clusters obtained from an adaptive matched filter finder applied to SDSS DR9 data
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Astronomy - Volume 58, January 2018, Pages 61-71
Journal: New Astronomy - Volume 58, January 2018, Pages 61-71
نویسندگان
P. Banerjee, T. Szabo, E. Pierpaoli, G. Franco, M. Ortiz, A. Oramas, B. Tornello,