{"paper":{"title":"Measuring the X-ray luminosities of SDSS DR7 clusters from RASS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Erwin T. Lau, Frank C. van den Bosch, H. J. Mo, Lei Wang, Q.D. Wang, Ran Li, Shiyin Shen, Wentao Luo, Xiaohu Yang, Xi Kang, Yu Wang","submitted_at":"2013-12-28T10:13:05Z","abstract_excerpt":"We use ROSAT All Sky Survey (RASS) broadband X-ray images and the optical clusters identified from SDSS DR7 to estimate the X-ray luminosities around $\\sim 65,000$ candidate clusters with masses $\\ga 10^{13}\\msunh$ based on an Optical to X-ray (OTX) code we develop. We obtain a catalogue with X-ray luminosity for each cluster. This catalog contains 817 clusters (473 at redshift $z\\le 0.12$) with $S/N> 3$ in X-ray detection. We find about $65\\%$ of these X-ray clusters have their most massive member located near the X-ray flux peak; for the rest $35\\%$, the most massive galaxy is separated from"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7417","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}