NGC 7016
| NGC 7016 | |
|---|---|
| The Elliptical galaxy NGC 7016. | |
| Observation data (J2000 epoch) | |
| Constellation | Capricornus |
| Right ascension | 21h 07m 16.3s[1] |
| Declination | −25° 28′ 08″[1] |
| Redshift | 0.036845[1] |
| Heliocentric radial velocity | 11,046 km/s[1] |
| Distance | 480 Mly (147 Mpc)[1] |
| Apparent magnitude (V) | 14.85[1] |
| Absolute magnitude (B) | -22.97 ± 0.14[1] |
| Characteristics | |
| Type | E0[1] |
| Size | ~157,400 ly (48.26 kpc) (estimated)[1] |
| Apparent size (V) | 1.8 x 1.8[1] |
| Other designations | |
| ESO 529-25, AM 2104-254, MCG -4-49-13, PRC C-58 PGC 66136 [1] | |
NGC 7016 is an elliptical galaxy located about 480 million light-years away from Earth in the constellation Capricornus.[2] [3] NGC 7016's calculated velocity is 11,046 km/s.[3] The galaxy has an estimated diameter of about 160 thousand light years[3] and was discovered by American astronomer Francis Preserved Leavenworth on July 8, 1885.[4] It is also host to a supermassive black hole with an estimated mass of 1.4 ×ばつ 109 M☉.[5]
Physical characteristics
[edit ]NGC 7016 is one of two prominent radio galaxies in the galaxy cluster Abell 3744 along with the double galaxy system NGC 7018. These two galaxies form a pair in the central region of the cluster Abell 3744.[6]
NGC 7016 is a Famaroff-Riley type I radio galaxy,[6] [7] with bent asymmetric jets. Lower-resolution radio data obtained from observations from the VLA, show a very long, bent extension of the jet on the left side of the galaxy which forms a tendril structure. On the counterjet side there is extreme looping, forming a feature referred to as the "swirl." It is thought that this swril which runs into an X-ray cavity produced by NGC 7018, is the result of the jet colliding with the radio plasma from NGC 7018 and as a result of an interaction with a wake of gas left by the motion of NGC 7018 and its companion galaxy through the cluster.[6]
See also
[edit ]References
[edit ]- ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 7016. Retrieved 2017年05月27日.
- ^ Rojas, Sebastián García. "Galaxy NGC 7016 · Deep Sky Objects Browser". DSO Browser. Retrieved 2017年05月28日.
- ^ a b c "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017年05月28日.
- ^ "New General Catalog Objects: NGC 7000 - 7049". cseligman.com. Retrieved 2024年08月19日.
- ^ 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年06月01日). "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.
- ^ a b c M. Birkinshaw, D. M. Worrall (2014年03月20日). "Sliding Not Sloshing in A3744: The Influence of Radio Galaxies NGC 7018 and 7016 on Cluster Gas". The Astrophysical Journal. 784 (1): 13. arXiv:1312.5311 . Bibcode:2014ApJ...784...36W. doi:10.1088/0004-637x/784/1/36. S2CID 53506049.
- ^ Bicknell, G. V.; Cameron, R. A.; Gingold, R. A. (1990年07月01日). "Rotation Measure Variations across the Lobes of Extragalactic Radio Sources". The Astrophysical Journal. 357: 373. Bibcode:1990ApJ...357..373B. doi:10.1086/168928. ISSN 0004-637X.
External links
[edit ]- NGC 7016 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images