NGC 4261
NGC 4261 is an elliptical galaxy[3] located around 100 million light-years[4] away in the constellation Virgo. The galaxy is a member of its own galaxy group known as the NGC 4261 group.[3]
NGC 4261 | |
---|---|
An X-ray image of NGC 4261. | |
Observation data (J2000 epoch) | |
Constellation | Virgo |
Right ascension | 12h 19m 23.2s[1] |
Declination | +05° 49′ 31″[1] |
Redshift | 0.007465[1] |
Helio radial velocity | 2238 ± 7 km/s[1] |
Distance | 96 ± 8 Mly (29.4 ± 2.6 Mpc)[2] |
Apparent magnitude (V) | 11.4[1] |
Characteristics | |
Type | E2-3[1] |
Apparent size (V) | 4′.1 × 3′.6[1] |
Other designations | |
UGC 7360,[1] PGC 39659[1] |
The active galactic nucleus (AGN) contains a 400-million-solar mass supermassive black hole (SMBH)[4] with an 800-light-year-wide spiral-shaped disk of dust fueling it.[5]
The galaxy is estimated to be about 60 thousand light-years across,[6] and a jet emanating from it is estimated to span about 88 thousand light-years.[7]
References
- "NASA/IPAC Extragalactic Database". Results for NGC 4261. Retrieved 2007-03-30.
- Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; et al. (February 2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal. 583 (2): 712–726. arXiv:astro-ph/0210129. Bibcode:2003ApJ...583..712J. doi:10.1086/345430.
- Davis, David S.; Mushotzky; Mulchaey; Worrall; et al. (1995). "Diffuse hot gas in the NGC 4261 group of galaxies" (PDF). Astrophysical Journal. 444 (2): 582–589. Bibcode:1995ApJ...444..582D. doi:10.1086/175632.
- "Massive Black Holes Dwell in Most Galaxies, According to Hubble Census". Hubblesite STScI-1997-01. 1997-01-13. Retrieved 2010-05-02.
- "Hubble Finds a New Black Hole – and Unexpected New Mysteries". Hubblesite STScI-1995-47. 1995-12-04. Retrieved 2010-05-02.
- "The Virgo Cluster". An Atlas of the Universe. Retrieved 2010-05-02.
- "The Giant Elliptical Galaxy NGC 4261". Astronomy 162 (Dept. Physics & Astronomy University of Tennessee). Retrieved 2010-05-02.
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