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NGC 1281

NGC 1281
A near-infrared image of NGC 1281.
Observation data (J2000 epoch)
ConstellationPerseus
Right ascension03h 20m 06.1s[1]
Declination41° 37′ 48″[1]
Redshift0.014343[1]
Heliocentric radial velocity4300 km/s[1]
Distance195.7 ± 3.3 Mly (60 ± 1 Mpc)[2]
Group or clusterPerseus Cluster
Apparent magnitude (V)14.5[1]
Characteristics
TypeE5[1]
Mass/Light ratio1.7[3] M☉/L☉
Size~17,000 ly (5.2 kpc) (estimated)[1]
Apparent size (V)1.0 x 0.7[1]
Half-light radius (physical)~4,200 ly (1.3 kpc) (estimated)[3]
Other designations
CGCG 540-108, MCG 7-7-67, PGC 12458[1]

NGC 1281 is a compact[3] elliptical galaxy[4] located about 200 million light-years away[3] in the constellation Perseus.[5] NGC 1281 was discovered by astronomer John Dreyer on December 12, 1876.[6] It is a member of the Perseus Cluster.[7][6]

Like NGC 1277 and NGC 1271, NGC 1281 is a candidate "relic galaxy".[8]

Supermassive black hole

The supermassive black hole in NGC 1281 has an estimated mass of about 10 billion solar masses (1010 M☉).[3] However, Anna Ferré-Mateu et al. estimated the black hole has a mass of no more than 5 billion solar masses.[8]

See also

Notes

1.^ This value was determined by using the given half-light radius.

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 1281. Retrieved 2018-07-03.
  2. ^ Yıldırım, Akın; Bosch, Van Den; E, Remco C.; van de Ven, Glenn; Martín-Navarro, Ignacio; Walsh, Jonelle L.; Husemann, Bernd; Gültekin, Kayhan; Gebhardt, Karl (2017-07-11). "The structural and dynamical properties of compact elliptical galaxies". Monthly Notices of the Royal Astronomical Society. 468 (4): 4216–4245. arXiv:1701.05898. Bibcode:2017MNRAS.468.4216Y. doi:10.1093/mnras/stx732. ISSN 0035-8711.
  3. ^ a b c d e Yıldırım, Akın; Bosch, Van Den; E, Remco C.; van de Ven, Glenn; Dutton, Aaron; Läsker, Ronald; Husemann, Bernd; Walsh, Jonelle L.; Gebhardt, Karl (2016-02-11). "The massive dark halo of the compact early-type galaxy NGC 1281". Monthly Notices of the Royal Astronomical Society. 456 (1): 538–553. arXiv:1511.03131. Bibcode:2016MNRAS.456..538Y. doi:10.1093/mnras/stv2665. ISSN 0035-8711.
  4. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-07-06.
  5. ^ "Revised NGC Data for NGC 1281". spider.seds.org. Retrieved 2018-07-06.
  6. ^ a b "New General Catalog Objects: NGC 1250 - 1299". cseligman.com. Retrieved 2018-06-15.
  7. ^ Brunzendorf, J.; Meusinger, H. (October 1, 1999). "The galaxy cluster Abell 426 (Perseus). A catalogue of 660 galaxy positions, isophotal magnitudes and morphological types". Astronomy and Astrophysics Supplement Series. 139 (1): 141–161. Bibcode:1999A&AS..139..141B. doi:10.1051/aas:1999111. ISSN 0365-0138.
  8. ^ a b Ferré-Mateu, Anna; Mezcua, Mar; Trujillo, Ignacio; Balcells, Marc; Bosch, Remco C. E. van den (2015-07-21). "Massive Relic Galaxies Challenge the Co-Evolution of Super-Massive Black Holes and Their Host Galaxies". The Astrophysical Journal. 808 (1): 79. arXiv:1506.02663. Bibcode:2015ApJ...808...79F. doi:10.1088/0004-637x/808/1/79. ISSN 1538-4357. S2CID 118777377.
Quelle: https://en.wikipedia.org/wiki/NGC_1281