NGC_4074 Knowpia

NGC 4074
NGC 4074
	SDSS image of NGC 4074.
Observation data (J2000 epoch)
Constellation	Coma Berenices
Right ascension	12h 04m 29.7s
Declination	20° 18′ 58″
Redshift	0.022445
Heliocentric radial velocity	6729 km/s
Distance	310 Mly (96 Mpc)
Group or cluster	NGC 4065 Group
Apparent magnitude (V)	14.5
Characteristics
Type	S0 pec
Size	~100,000 ly (32 kpc) (estimated)
Apparent size (V)	0.35 x 0.2
Other designations
	ARK 347, MCG +04-29-011, PGC 038207

NGC 4074 is a peculiar^[2]^[3] lenticular galaxy located 310 million light-years away^[3] in the constellation Coma Berenices.^[4] It was discovered by astronomer William Herschel on April 27, 1785^[5] and is a member of the NGC 4065 Group.^[6]^[7]^[8]^[9]^[10]

NGC 4074 is classified as a type 2 Seyfert galaxy.^[3]^[11]^[2]^[12] It was first identified as a Seyfert in 1978.^[13]

Supermassive black hole edit

NGC 4074 has a supermassive black hole with an estimated mass of (10×10⁸ M☉).^[14]

References edit

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "NASA/IPAC Extragalactic Database". Results for NGC 4074. Retrieved 2019-02-09.
^ ^a ^b "Sasmirala object pages". dc.zah.uni-heidelberg.de. Retrieved 2019-02-09.
^ ^a ^b ^c "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2019-02-09.
^ "Revised NGC Data for NGC 4074". spider.seds.org. Retrieved 2019-02-09.
^ "New General Catalog Objects: NGC 4050 - 4099". cseligman.com. Retrieved 2019-02-03.
^ Tifft, W. G.; Gregory, S. A. (1979-07-01). "Band theory applied to the Coma/A1367 supercluster". The Astrophysical Journal. 231: 23–27. Bibcode:1979ApJ...231...23T. doi:10.1086/157158. ISSN 0004-637X.
^ Burns, Jack O.; Hanisch, Robert J.; White, Richard A.; Nelson, Eric R.; Morrisette, Kim A.; Moody, J. Ward (1987-09-01). "A VLA 20 CM survey of poor groups of galaxies". The Astronomical Journal. 94: 587–617. Bibcode:1987AJ.....94..587B. doi:10.1086/114494. ISSN 0004-6256.
^ Doe, Stephen M.; Ledlow, Michael J.; Burns, Jack O.; White, Richard A. (1995-07-01). "ROSAT Observations of Five Poor Galaxy Clusters with Extended Radio Sources". The Astronomical Journal. 110: 46. Bibcode:1995AJ....110...46D. doi:10.1086/117496. ISSN 0004-6256.
^ White, Richard A.; Bliton, Mark; Bhavsar, Suketu P.; Bornmann, Patricia; Burns, Jack O.; Ledlow, Michael J.; Loken, Christen (1999-11-01). "A Catalog of Nearby Poor Clusters of Galaxies". The Astronomical Journal. 118 (5): 2014–2037. arXiv:astro-ph/9907283. Bibcode:1999AJ....118.2014W. doi:10.1086/301103. ISSN 0004-6256. S2CID 73667751.
^ Helsdon, Stephen F.; Ponman, Trevor J.; O'Sullivan, Ewan; Forbes, Duncan A. (2001-08-01). "X-ray luminosities of galaxies in groups". Monthly Notices of the Royal Astronomical Society. 325 (2): 693–706. arXiv:astro-ph/0103293. Bibcode:2001MNRAS.325..693H. doi:10.1046/j.1365-8711.2001.04490.x. ISSN 0035-8711. S2CID 17732882.
^ "NGC 4074". sim-id. Retrieved 2019-02-09.
^ Winter, Lisa M.; Lewis, Karen T.; Koss, Michael; Veilleux, Sylvain; Keeney, Brian; Mushotzky, Richard F. (2010-02-01). "Optical Spectral Properties of Swift Burst Alert Telescope Hard X-Ray-Selected Active Galactic Nuclei Sources". The Astrophysical Journal. 710 (1): 503–539. arXiv:1001.0049. Bibcode:2010ApJ...710..503W. doi:10.1088/0004-637X/710/1/503. ISSN 0004-637X. S2CID 118724440.
^ Weedman, D. W. (1978-07-01). "More Seyfert galaxies". Monthly Notices of the Royal Astronomical Society. 184: 11P–13P. Bibcode:1978MNRAS.184P..11W. doi:10.1093/mnras/184.1.11P. ISSN 0035-8711.
^ Woo, Jong-Hak; Urry, C. Megan (2002-11-01). "Active Galactic Nucleus Black Hole Masses and Bolometric Luminosities". The Astrophysical Journal. 579 (2): 530–544. arXiv:astro-ph/0207249. Bibcode:2002ApJ...579..530W. doi:10.1086/342878. ISSN 0004-637X. S2CID 118160249.