JKCS 041

JKCS 041 (Chandra X-ray)

JKCS 041 is a cluster of galaxies with the distinction, as of 2009, of being the farthest galaxy cluster observed from Earth.[1] It is estimated to be 10.2 billion light-years away,[2] seen at redshift 1.9.[3] The cluster is located in the constellation Cetus at a photometrically determined redshift of z=1.9 at right ascension 2h 26m 44s declination −04° 41′ 37″ (J2000.0).[4] There are at least 19 members in the cluster.[2]

Tour of JKCS041
  1. ^ "'Most distant' galaxy group spied". BBC News. 22 October 2009. Retrieved 28 October 2009.
  2. ^ a b Carnegie Institution (21 May 2014). "Very distant galaxy cluster confirmed". Science Daily.
  3. ^ Nemiroff, R.; Bonnell, J., eds. (28 October 2009). "JKCS041: The Farthest Galaxy Cluster Yet Measured". Astronomy Picture of the Day. NASA. Retrieved 28 October 2009.
  4. ^ Andreon S, Maughan B, Trinchieri G, Kurk J (November 2009). "JKCS 041: a colour-detected galaxy cluster at zphot~1.9 with deep potential well as confirmed by X-ray data". Astronomy & Astrophysics. 507 (1): 147–157. arXiv:0812.1699. Bibcode:2009A&A...507..147A. doi:10.1051/0004-6361/200912299. S2CID 17106494.