NGC 7010
| NGC 7010 | |
|---|---|
 SDSS image of NGC 7010. | |
| Observation data (J2000 epoch) | |
| Constellation | Aquarius |
| Right ascension | 21h 04m 39.5s[1] |
| Declination | −12° 20′ 18″[1] |
| Redshift | 0.028306[1] |
| Heliocentric radial velocity | 8,486 km/s[1] |
| Distance | 370 Mly (112 Mpc)[1] |
| Apparent magnitude (V) | 14.5[1] |
| Characteristics | |
| Type | E+ pec [1] |
| Size | ~224,600 ly (68.86 kpc) (estimated)[1] |
| Apparent size (V) | 1.9 x 1.0[1] |
| Other designations | |
| NPM1G -12.0537, IC 5082, MCG -2-53-24, PGC 66039[1] | |
NGC 7010 is a massive elliptical galaxy located about 370 million light-years from Earth in the constellation Aquarius.[2][3] NGC 7010 was discovered by astronomer John Herschel on August 6, 1823, and was later listed by French astronomer Guillaume Bigourdan as IC 5082.[4] It is host to a supermassive black hole with an estimated mass of 4.7 × 108 M☉.[5]
Physical characteristics
[edit]NGC 7010 has broad, plateau shaped shells of stars surrounding it which are quite low in surface brightness. These shells are unusually red or redder than the rest of NGC 7010. It is thought that mergers with other galaxies along with phase wrapping causes the lower mass stars in NGC 7010 to be separated from higher mass blue stars in the shells leaving only the higher mass stars in the shells. As these stars evolve and move into the Asymptotic giant branch (AGB) stage, these shells would become very red in color, especially if further star formation is suppressed in the galaxy.[6] It's theorized that the shells formed from the accretion of another galaxy.[7]
See also
[edit]References
[edit]- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 7010. Retrieved 2017-05-06.
- ^ Rojas, Sebastián García. "Galaxy NGC 7010 Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-08-07. Retrieved 2017-05-06.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-05-06.
- ^ "New General Catalog Objects: NGC 7000 - 7049". cseligman.com. Retrieved 2017-05-08.
- ^ Arzoumanian, Zaven; Baker, Paul T.; Brazier, Adam; Brook, Paul R.; Burke-Spolaor, Sarah; Becsy, Bence; Charisi, Maria; Chatterjee, Shami; Cordes, James M.; Cornish, Neil J.; Crawford, Fronefield; Cromartie, H. Thankful; Decesar, Megan E.; Demorest, Paul B.; Dolch, Timothy (2021-06-01). "The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc". The Astrophysical Journal. 914 (2): 121. arXiv:2101.02716. Bibcode:2021ApJ...914..121A. doi:10.3847/1538-4357/abfcd3. ISSN 0004-637X.
- ^ McGaugh, Stacy S.; Bothun, Gregory D. (October 1990). "Stellar populations in shell galaxies" (PDF). The Astronomical Journal. 100: 1073. Bibcode:1990AJ....100.1073M. doi:10.1086/115580. hdl:1903/8712.
- ^ Kojima, Makoto; Noguchi, Masafumi (20 May 1997). "Sinking satellite disk galaxies. I. Shell formation preceded by cessation of star formation". The Astrophysical Journal. 481 (1): 132–156. Bibcode:1997ApJ...481..132K. doi:10.1086/304021.
External links
[edit]
Media related to NGC 7010 at Wikimedia Commons- NGC 7010 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
