NGC 1407 explained
NGC 1407 is an elliptical galaxy in Eridanus. It is at a distance of 76 million light-years from Earth. It is the brightest galaxy in the NGC 1407 Group, part of the Eridanus Group, with NGC 1407 being its brightest member.[2] NGC 1400, the second-brightest of the group lies 11.8 arcmin away.
NGC 1407 is X-ray luminous, with high hot gas Fe abundance,[3] and with evidence of recurrent radio outbursts.[4] In the central area of the galaxy are present old stars, with mean age 12.0 ± 1.1 Gyrs, that are metal rich and with supersolar abundances of α-elements. Observations indicate that NGC 1407 hasn't recently undergone strong star-formation activity.[5] The galaxy hosts a supermassive black hole with a mass 1.12 ± 0.42 billion solar masses, based on velocity dispersion.[6]
The galaxy was discovered by 6 October 1785 by William Herschel.[7]
Notes and References
- Web site: NASA/IPAC Extragalactic Database. Results for NGC 1407. 2016-01-18 .
- Su. Yuanyuan. Gu. Liyi. White III. Raymond E.. Irwin. Jimmy. Joint XMM-Newton and Chandra observations of the NGC 1407/1400 complex: a tail of an early-type galaxy and a tale of a nearby merging group. The Astrophysical Journal. 10 May 2014. 786. 2. 152. 10.1088/0004-637X/786/2/152. 1403.6416 . 2014ApJ...786..152S . 118452480 .
- Su. Yuanyuan. Irwin. Jimmy A.. Investigating the potential dilution of the metal content of hot gas in early-type galaxies by accreted cold gas. The Astrophysical Journal. 20 March 2013. 766. 1. 61. 10.1088/0004-637X/766/1/61. 1301.7706 . 2013ApJ...766...61S . 118617980 .
- Giacintucci. Simona. O’Sullivan. Ewan. Clarke. Tracy E.. Murgia. Matteo. Vrtilek. Jan M.. Venturi. Tiziana. David. Laurence P.. Raychaudhury. Somak. Athreya. Ramana M.. Recurrent radio outbursts at the center of the NGC 1407 galaxy group. The Astrophysical Journal. 20 August 2012. 755. 2. 172. 10.1088/0004-637X/755/2/172. 1206.5751 . 2012ApJ...755..172G . 119112642 .
- Spolaor. Max. Forbes. Duncan A.. Proctor. Robert N.. Hau. George K. T.. Brough. Sarah. The early-type galaxies NGC 1407 and NGC 1400 – II. Star formation and chemical evolutionary history. Monthly Notices of the Royal Astronomical Society. April 2008. 385. 2. 675–686. 10.1111/j.1365-2966.2008.12892.x. free . 0801.2005 . 2008MNRAS.385..675S . 15326784 .
- Sadoun. Raphael. Colin. Jacques. -σ relation between supermassive black holes and the velocity dispersion of globular cluster systems. Monthly Notices of the Royal Astronomical Society: Letters. 11 October 2012. 426. 1. L51–L55. 10.1111/j.1745-3933.2012.01321.x. free . 1204.0144 . 2012MNRAS.426L..51S . 117185846 .
- Web site: NGC 1407 (= PGC 13505). Seligman.
