X-RAY-EMISSION FROM THE CLUSTER AROUND E1821+643

Authors
SAXTON RD BARSTOW MA TURNER MJL WILLIAMS OR STEWART GC KII T
Citation
Rd. Saxton et al., X-RAY-EMISSION FROM THE CLUSTER AROUND E1821+643, Monthly Notices of the Royal Astronomical Society, 289(1), 1997, pp. 196-202
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
289
Issue
1
Year of publication
1997
Pages
196 - 202
Database
ISI
SICI code
0035-8711(1997)289:1<196:XFTCAE>2.0.ZU;2-5
Abstract
We report the first unambiguous detection of X-ray emission from the c luster of galaxies surrounding the radio-quiet QSO E1821 + 643, ROSAT PSPC observations show that the cluster is highly luminous, L-x simila r to 10(45) erg s(-1), as would be expected from the high Abell richne ss class (greater than or equal to 2) seen in optical studies. The clu ster is expected to contribute an iron line of apparent equivalent wid th 20-142 eV to the integrated spectrum.