Langbahn Team – Weltmeisterschaft

NGC 4061

NGC 4061
SDSS image of NGC 4061. NGC 4065 can be seen to the left of the image.
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension12h 04m 01.5s[1]
Declination20° 13′ 56″[1]
Redshift0.024027[1]
Heliocentric radial velocity7203 km/s[1]
Distance310 Mly (94 Mpc)[1]
Group or clusterNGC 4065 Group
Apparent magnitude (V)14.12[1]
Characteristics
TypeE[1]
Size~120,000 ly (37 kpc) (estimated)[1]
Apparent size (V)1.2 x 0.9[1]
Other designations
NGC 4055, MCG +04-29-006, PGC 038146, UGC 07044, VV 179b[1]

NGC 4061 is an elliptical galaxy located 310 light-years away[2] in the constellation Coma Berenices.[3] It was discovered by astronomer William Herschel on April 27, 1785. It was rediscovered by John Herschel on April 29, 1832. It is listed both as NGC 4061 and NGC 4055.[4] NGC 4061 is a member of the NGC 4065 Group[5][6][7][8][9][10][11][12][13] and forms an interacting[14][15] pair with its companion, NGC 4065[8][14] as evidenced by distortions in their optical isophotes.[15][9]

NGC 4061 is classified as a radio galaxy[7][15][9][16][17][18][11][19] with a Fanaroff and Riley classification of type I.[20]

Radio Jets

NGC 4061 has two radio jets that appear to be very straight and that dramatically oppose each other. At a distance of 26,000 ly (8 kpc) from the core the jets appear to suddenly sweep back. This sudden bending of the jets suggest that they are leaving the interstellar medium (ISM) of NGC 4061 and entering into the intracluster medium (ICM). After the sharp bending, the jets continue to open for about 82,000 ly (25 kpc) and extend into a "U" or horseshoe morphology similar to NGC 1265, with each jet having a length of 160,000 ly (50 kpc). This morphology is thought to be due to the motion of NGC 4061 through the ICM with sufficient velocity to bend the jets by ram-pressure stripping.[15]

The interaction with NGC 4065 may have also contributed to bending the jets.[9]

Dust Disk

NGC 4061 has a dust disk with a diameter of 7,420 ly (2.275 kpc).[21][1]

Supermassive black hole

NGC 4061 has a supermassive black hole with a mass in the range of 1-9 × 109 M☉.[22][23]

SN 2008bf

On February 18, 2008 a type Ia supernova designated as SN 2008bf was discovered in NGC 4061.[24][25][26][27] However, the Open Supernova Catalog suggests that the host galaxy may be the nearby NGC 4065.[27]

See also

Notes

1.^ This was determined by multiplying the given scale length in the paper of 0.55 arcseconds=820 ly (250 pc) by 9.1 to get the diameter of the dust disk.

References

  1. ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 4061. Retrieved 2019-01-20.
  2. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2019-01-21.
  3. ^ "Revised NGC Data for NGC 4061". spider.seds.org. Retrieved 2019-01-21.
  4. ^ "New General Catalog Objects: NGC 4050 - 4099". cseligman.com. Retrieved 2019-01-15.
  5. ^ Gregory, S. A.; Thompson, L. A. (1978-06-01). "The Coma/A1367 supercluster and its environs". The Astrophysical Journal. 222: 784–799. Bibcode:1978ApJ...222..784G. doi:10.1086/156198. ISSN 0004-637X.
  6. ^ 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.
  7. ^ a b Jaffe, W.; Gavazzi, G.; Valentijn, E. (1986-02-01). "Radio continuum survey of the Coma/A1367 supercluster. I - 610 MHz observations of CGCG galaxies in four groups". The Astronomical Journal. 91: 199–203. Bibcode:1986AJ.....91..199J. doi:10.1086/114000. ISSN 0004-6256.
  8. ^ a b 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.
  9. ^ a b c d 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.
  10. ^ 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.
  11. ^ a b Croston, J. H.; Sengupta, C.; Freeland, E. (2010-12-21). "Quantifying the importance of ram-pressure stripping in a galaxy group at 100 Mpc". Monthly Notices of the Royal Astronomical Society. 409 (4): 1518–1524. arXiv:1007.3286. Bibcode:2010MNRAS.409.1518F. doi:10.1111/j.1365-2966.2010.17379.x. ISSN 0035-8711. S2CID 119216322.
  12. ^ 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.
  13. ^ Freeland, E.; Stilp, A.; Wilcots, E. (2009-07-01). "HI Observations of Five Groups of Galaxies". The Astronomical Journal. 138 (1): 295–304. arXiv:0905.3907. Bibcode:2009AJ....138..295F. doi:10.1088/0004-6256/138/1/295. ISSN 0004-6256. S2CID 15714969.
  14. ^ a b Batuski, David J.; Hanisch, Robert J.; Burns, Jack O. (1992-04-01). "VLA observations of radio sources in interacting galaxy pairs in poor clusters". The Astronomical Journal. 103: 1077–1083. Bibcode:1992AJ....103.1077B. doi:10.1086/116126. ISSN 0004-6256.
  15. ^ a b c d Venkatesan, T. C. A.; Batuski, David J.; Hanisch, Robert J.; Burns, Jack O. (November 20, 1994). "Why do head-tail sources exist in poor clusters of galaxies?". The Astrophysical Journal. 436: 67–78. Bibcode:1994ApJ...436...67V. doi:10.1086/174881. ISSN 0004-637X.
  16. ^ Zaninetti, L. (2007-04-01). "Physical mechanisms that shape the morphologies of extragalactic jets". Revista Mexicana de Astronomía y Astrofísica. 43: 59–87. arXiv:astro-ph/0610400. Bibcode:2007RMxAA..43...59Z. ISSN 0185-1101.
  17. ^ Zaninetti, Lorenzo (2009-03-06). "A turbulent model for the surface brightness of extragalactic jets". Revista Mexicana de Astronomía y Astrofísica. 45: 25–53. arXiv:0903.1170. Bibcode:2009RMxAA..45...25Z.
  18. ^ Gavazzi, Giuseppe; Fumagalli, Mattia; Cucciati, Olga; Boselli, Alessandro (July 2010). "A snapshot on galaxy evolution occurring in the Great Wall: the role of Nurture at z=0". Astronomy and Astrophysics. 517: A73. arXiv:1003.3795. Bibcode:2010A&A...517A..73G. doi:10.1051/0004-6361/201014153. ISSN 0004-6361. S2CID 55001713.
  19. ^ "NGC 4061". sim-id. Retrieved 2019-01-21.
  20. ^ Capetti, A.; Massaro, F.; Baldi, R. D. (2017-02-01). "FRICAT: A FIRST catalog of FR I radio galaxies". Astronomy and Astrophysics. 598: A49. arXiv:1610.09376. Bibcode:2017A&A...598A..49C. doi:10.1051/0004-6361/201629287. ISSN 0004-6361. S2CID 119216781.
  21. ^ Pinkney, J. C.; Nuker Team (2005-05-01). "Kinematics and Black Hole Mass for the Narrow-Angle Tailed Radio Galaxy NGC 4061". American Astronomical Society Meeting Abstracts #206. 206: 11.17. Bibcode:2005AAS...206.1117P.
  22. ^ Pinkney, J.; Gebhardt, K.; Nuker Team. "Kinematics and Black Hole Mass for the Narrow-Angle Tailed Radio Galaxy NGC 4061 [Poster]" (PDF). Jason Pinkney's Homepage. Archived from the original (PDF) on 2019-01-26. Retrieved 2019-01-21.
  23. ^ "NGC 4061 Fact Sheet - StarDate's Black Hole Encyclopedia". blackholes.stardate.org. Retrieved 2019-01-22.
  24. ^ "List of supernovae sorted by host name". Bright Supernova - Archives. Retrieved 2019-01-21.
  25. ^ "Bright Supernovae - 2008". rochesterastronomy.org. Retrieved 2019-01-22.
  26. ^ "SN 2008bf | Transient Name Server". wis-tns.weizmann.ac.il. Retrieved 2019-01-22.
  27. ^ a b "2008bf - The Open Supernova Catalog". Archived from the original on 2016-09-17. Retrieved 2019-01-22.
Quelle: http://en.wikipedia.org/wiki/NGC_4055