NGC 4697 (also known as Caldwell 52) is an elliptical galaxy some 40 to 50 million light-years away in the constellation Virgo. It is a member of the NGC 4697 Group, a group of galaxies also containing NGC 4731 and several generally much smaller galaxies.[3] This group is about 55 million light-years away; it is one of the many Virgo II Groups, which form a southern extension of the Virgo Supercluster of galaxies.[3]
The distance to NGC 4697 is not known with high precision: measurements vary from 28 to 76 million light-years.[1] According to the NASA Extra-galactic Database, the average is about 38 million light-years;[1] according to SIMBAD, about 50 million light-years.[2]
The supermassive black hole at the core of NGC 4697 has a mass of 1.3+0.18
−0.17×108 M☉ as measured from Atacama Large Millimeter Array observations of the rotation of the central gas disk.[4]
One supernova has been observed in NGC 4697: SN 2018imd (type Ia, mag. 15.5).[5]
Gallery
-
NGC 4697 by the Sloan Digital Sky Survey -
NGC 4697 from the Hubble Space Telescope.
References
- ^ a b c d e f g h i "NED results for object NGC 4697". NASA/IPAC Extragalactic Database. Retrieved 2010-11-28.
- ^ a b c "NGC 4697". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-11-28.
- ^ a b "The Virgo II Groups". Atlas of the Universe. Retrieved 2010-11-28.
- ^ Davis, T. A.; Bureau, M.; Onishi, K.; Cappellari, M.; Iguchi, S.; Sarzi, M. (2017). "WISDOM Project - II. Molecular gas measurement of the supermassive black hole mass in NGC 4697". Monthly Notices of the Royal Astronomical Society. 468 (4): 4675. arXiv:1703.05248. Bibcode:2017MNRAS.468.4675D. doi:10.1093/mnras/stw3217.
- ^ Transient Name Server entry for SN 2018imd. Retrieved 23 March 2023.
External links
Media related to NGC 4697 at Wikimedia Commons- NGC 4697 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
| List |
|
|---|---|
| See also | |
Recent Comments