Abell 1991

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Abell 1991
Observation data (Epoch J2000)
Constellation(s) Boötes
Right ascension 14h 54m 30.2s [1]
Declination +18° 37′ 51″ [1]
Richness class 1 [2]
Bautz–Morgan classification I [2]
Redshift 0.05870 (17 598) [1]
Distance 249  Mpc (812  Mly) h−1
0.705 [1]
ICM temperature 2.61 keV [3]
Binding mass 1.23×1014 [3]   M☉
X-ray flux (9.40 ± 16.7%)×10−12 erg s−1 cm−2 (0.1–2.4 keV) [1]

Abell 1991 is a galaxy cluster in the Abell catalogue.

See also

References

  1. 1 2 3 4 5 "NED results for object ABELL 1991". NASA/IPAC Extragalactic Database (NED). Retrieved March 17, 2012.
  2. 1 2 Abell, George O.; Corwin, Harold G. Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies". Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi: 10.1086/191333 . ISSN   0067-0049.
  3. 1 2 Table 4 from Vikhlinin, A.; Kravtsov, A.; Forman, W.; Jones, C.; Markevitch, M.; Murray, S. S.; Van Speybroeck, L. (April 2006). "Chandra Sample of Nearby Relaxed Galaxy Clusters: Mass, Gas Fraction, and Mass-Temperature Relation". The Astrophysical Journal. 640 (2). Chicago, Illinois, USA: 691–709. arXiv: astro-ph/0507092 . Bibcode:2006ApJ...640..691V. doi:10.1086/500288. S2CID   18940822.


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