NGC 3314 is a pair of overlapping spiral galaxies between 117 and 140 million light-years away in the constellation Hydra. This unique alignment gives astronomers the opportunity to measure the properties of interstellar dust in the face-on foreground galaxy (NGC 3314a). The dust appears dark against the background galaxy (NGC 3314b). Unlike interacting galaxies, the two components of NGC 3314 are physically unrelated. It[clarification needed] was discovered in April 1999.

In a March 2000 observation of the galaxies, a prominent green star-like object was seen in one of the arms. Astronomers theorized that it could have been a supernova, but the unique filtering properties of the foreground galaxy made it difficult to decide definitively.[1]

Both galaxies are members of the Hydra Cluster.[2]

NGC 3314 as seen by the legacy surveys, shows a large extended tail, mostly coming from the foreground galaxy, this is seen as signs of ram pressure[3]

References

  1. ^ Keel, Bill; Frattare, Lisa. "NGC 3314 Variable Object". heritage.stsci.edu. Retrieved 2015-11-05.
  2. ^ Richter, O.-G. (February 1989). "The Hydra I cluster of galaxies. V – A catalogue of galaxies in the cluster area". Astronomy and Astrophysics Supplement Series. 77: 237–256. Bibcode:1989A&AS...77..237R.
  3. ^ Hess, Kelley M.; Kotulla, Ralf; Chen, Hao; Carignan, Claude; Gallagher, John S.; Jarrett, Thomas H.; Kraan-Korteweg, Renée C. (2022-12-01). "NGC 3314a/b and NGC 3312: Ram pressure stripping in Hydra I cluster substructure". Astronomy and Astrophysics. 668: A184. arXiv:2209.05605. doi:10.1051/0004-6361/202243412. ISSN 0004-6361.
Allikas: https://en.wikipedia.org/wiki/NGC_3314
No tags for this post.