Cannabaceae

Abell 1795
Observation data (Epoch J2000)
Constellation(s)Boötes
Right ascension13h 49m 00.5s[1]
Declination+26° 35′ 07″[1]
Richness class2[2]
Bautz–Morgan classificationI [2]
Redshift0.062476 (18 730)[1]
Distance266 Mpc (868 Mly) h−1
0.705
[1]
ICM temperature6.12 keV[3]
Binding mass6.03×1014[3] M
X-ray flux(68.10 ± 5.8%)×10−12 erg s−1 cm−2 (0.1–2.4 keV)[1]

Abell 1795 is a galaxy cluster in the Abell catalogue.

Black holes

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In January 2014, scientists using data collected by the Chandra X-Ray Observatory and other telescopes reported they had found evidence of a new supermassive black hole candidate disrupting a star in a dwarf galaxy in the Abell 1795 cluster.[4][5]

See also

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References

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  1. ^ a b c d e "NED results for object ABELL 1795". NASA/IPAC Extragalactic Database (NED). Retrieved March 15, 2012.
  2. ^ a b 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. ^ a b 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.
  4. ^ "Chandra Press Room :: Death By Black Hole In Small Galaxy? :: 08 January 14". chandra.harvard.edu. Retrieved 2018-07-18.
  5. ^ Boen, Brooke (2015-05-06). "Dwarf Galaxy, Galaxy Cluster Abell 1795". NASA. Retrieved 2018-07-18.



One thought on “Cannabaceae

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
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