Abell 2152

Abell 2152 is a bimodal[3] galaxy cluster and one of three clusters comprising the Hercules Supercluster. It contains 3 BCGs; the S0 lenticular UGC 10204, the pair UGC 10187, and the SA0 unbarred lenticular CGCG 108-083.[2] In total there are 41 galaxies which are confirmed to be members of the cluster.[1] The cluster is classified as a Bautz-Morgan type III and Rood-Sastry class F cluster, indicating morphological irregularity and perhaps dynamical youth.[4] It is receding from the Milky Way galaxy with a velocity of 12385 km/s.[2]

Abell 2152
Observation data (Epoch J2000)
Constellation(s)Hercules
Right ascension 16h 05m 32.2s
Declination+16° 26′ 31″
Brightest memberUGC 10204[1]
Richness class1[2]
Redshift0.041[2]
Distance
(co-moving)		169 Mpc (551 Mly) h−1
0.73[2]
Other designations
CID 59 , CAN 059 , MCXC J1605.5+1626, WCB96 J19, SCL 160 NED09, EAD2007 222, ZwCl 1603.0+1639.[2]

Abell 2152 is the nearest cluster in which significant gravitational lensing of a background source has been observed. The arc-like background galaxy, known as J160529.52+162633.9, lies at a redshift z=0.1423 and has been magnified by a factor ~1.9 due to the lensing effect.[5]

References
  1. "VizieR results for J/ApJ/736/21/bg*". VizieR catalogue access tool, CDS. Retrieved June 10, 2017.
  2. "NED results for object ABELL 2152". NASA/IPAC Extragalactic Database (NED). Retrieved June 10, 2017.
  3. Flin; Krywult. "Substructures in Abell clusters of galaxies". Astronomy & Astrophysics. 450: 9–14. Bibcode:2006A&A...450....9F. doi:10.1051/0004-6361:20041635.
  4. Abell; Corwin; Olowin (1989). "A Catalog of Rich Clusters of Galaxies". The Astrophysical Journal Supplement. 70: 1–139. Bibcode:1989ApJS...70....1A. doi:10.1086/191333.
  5. Blakelee; Metzger (2001). "Lensing in the Hercules Supercluster". The Astrophysical Journal. 121: 1–9. arXiv:astro-ph/0010187. Bibcode:2001AJ....121....1B. doi:10.1086/318021.



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