Astronomy:3C 171

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3C 171
Observation data (J2000 epoch)
ConstellationLynx
Right ascension 06h 55m 14.7s[1]
Declination+54° 08′ 89″[1]
Redshift0.238400[2]
Distance930 megaparsecs (3.0×109 ly) h−10.73[2]
Apparent magnitude (V)19.08[1]
Characteristics
TypeSy2, Rad, AGN, QSO, G[1]
G, FR II, Sy 2[2]
Other designations
LEDA 2817570, 3C 171, 4C +54.11, QSO B0651+542

3C 171 is a Seyfert galaxy located in the constellation Lynx, classfied as a radio galaxy, containing an extended emission-line region.[3][4] It is also a relatively isolated galaxy, not belonging to any other rich galaxy clusters.[5]

The inner regions of 3C 171 is said to be similar to an ordinary Fanaroff-Riley Class 2, but instead of radio lobes, it contains low-surface brightness plumes.[4] Using the multi-radio-frequency study, the plumes of 3C 171 are shown to flow in a reverse direction from both the primary and secondary hotspots, found separated. In one of the plumes located north-west, the region shows enhanced brightness, making it a quasi-hotspot.[6] Further evidence also points the emission lines in 3C 171 are made up of plasma, hinting the gas might be cooling.[7]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 "Query : 3C 171". Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=3C+171. 
  2. ↑ 2.0 2.1 2.2 "NED results for object 3C 171". http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=3C+171&extend=no. 
  3. ↑ Clark, N. E.; Axon, D. J.; Tadhunter, C. N.; Robinson, A.; O'Brien, P. (1998-02-01). "Jet-induced Shocks in 3C 171: An Intermediate-Redshift Analog of High-Redshift Radio Galaxies". The Astrophysical Journal 494 (2): 546–566. doi:10.1086/305225. ISSN 0004-637X. Bibcode: 1998ApJ...494..546C. https://ui.adsabs.harvard.edu/abs/1998ApJ...494..546C/abstract. 
  4. ↑ 4.0 4.1 Hardcastle, M. J. (2003-02-21). "Probing the extended emission-line region in 3C 171 with high-frequency radio polarimetry". Monthly Notices of the Royal Astronomical Society 339 (2): 360–366. doi:10.1046/j.1365-8711.2003.06102.x. ISSN 0035-8711. Bibcode: 2003MNRAS.339..360H. 
  5. ↑ McNamara, B. R.; Sarazin, C. L.; Jannuzi, B. T. (1994-12-01). "Radio-Aligned Blue Lobes in the Nearby Radio Galaxy 3C 171". American Astronomical Society Meeting Abstracts 185: 109.09. Bibcode: 1994AAS...18510909M. https://ui.adsabs.harvard.edu/abs/1994AAS...18510909M/abstract. 
  6. ↑ Blundell, Katherine M. (1996-11-01). "Evidence for widely separated primary and secondary hotspots in 3C 171". Monthly Notices of the Royal Astronomical Society 283 (2): 538–542. doi:10.1093/mnras/283.2.538. ISSN 0035-8711. Bibcode: 1996MNRAS.283..538B. 
  7. ↑ Heckman, T. M.; van Breugel, W. J. M.; Miley, G. K. (1984-11-01). "Emission-line gas associated with the radio lobes of the high-luminosity radiosource 3C 171.". The Astrophysical Journal 286: 509–516. doi:10.1086/162626. ISSN 0004-637X. Bibcode: 1984ApJ...286..509H. https://ui.adsabs.harvard.edu/abs/1984ApJ...286..509H/abstract. 

Coordinates: Sky map 06h 55m 14.7s, +54° 08′ 59″



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