IC 342/Maffei Group

IC 342/Maffei Group
Maffei 1, one of the brightest galaxies in the group
Observation data (Epoch J2000)
Constellation(s)Cassiopeia/Camelopardalis/Perseus
Brightest memberIC 342[1]
Number of galaxies16[1]
Other designations
IC 342 Group, Maffei 1 Group, LGG 104

The IC 342/Maffei Group (also known as the IC 342 Group or the Maffei 1 Group) corresponds to one or two galaxy groups close to the Local Group. The member galaxies are mostly concentrated around either IC 342 or Maffei 1, which would be the brightest two galaxies in the group.[1] The group is part of the Virgo Supercluster.[2] However, recent studies have found that the two subgroups are unrelated; while the IC 342 group is the nearest galaxy group to the Milky Way, the Maffei 1 group is several times farther away, and is not gravitationally bound to the IC 342 group.[3][4]

  1. ^ a b c I. D. Karachentsev (2005). "The Local Group and Other Neighboring Galaxy Groups". Astronomical Journal. 129 (1): 178–188. arXiv:astro-ph/0410065. Bibcode:2005AJ....129..178K. doi:10.1086/426368. S2CID 119385141.
  2. ^ R. B. Tully (1982). "The Local Supercluster". Astrophysical Journal. 257: 389–422. Bibcode:1982ApJ...257..389T. doi:10.1086/159999.
  3. ^ Tikhonov, N. A.; Galazutdinova, O. A. (2018). "Does the IC 342/Maffei Galaxy Group Really Exist?". Astrophysical Bulletin. 73 (3): 279–292. Bibcode:2018AstBu..73..279T. doi:10.1134/S1990341318030021. S2CID 126018966.
  4. ^ Anand, Gagandeep S.; Tully, R. Brent; Rizzi, Luca; Karachentsev, Igor D. (2019). "The Distance and Motion of the Maffei Group". The Astrophysical Journal. 872 (1): L4. arXiv:1901.05981. Bibcode:2019ApJ...872L...4A. doi:10.3847/2041-8213/aafee6. S2CID 119227716.