Astronomy:3C 191

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Short description: Quasar located in the constellation Cancer
3C 191
Observation data (Epoch J2000)
ConstellationCancer
Right ascension 08h 04m 47.9625s[1]
Declination+10° 15′ 23.781″[1]
Redshift1.956000[2]
Distance5,038 megaparsecs (1.643×1010 ly) h−10.73[2]
TypeRad, QSO, X, G[1]
QSO, FR II[2]
Apparent magnitude (V)18.40[1]
Other designations
LEDA 2817585, 4C +10.25, QSO B0802+10
See also: Quasar,List of quasars]]

3C 191 is a quasar[1] located in the constellation Cancer. It is located at redshift z = 1.95 and is hosted by an elliptical galaxy. The quasar contains a radio jet known to contain a high rotation measure with a thin shell configuration created in a form of wind inside the central regions.[3]

According to studies, the quasar is producing outflow winds that extend farther than 5 kiloparsecs from the center of the galaxy and carry energy at a rate of 5.5 x 1042 ergs s−1.[4] The elliptical host of 3C 191, is said to have a gas density of ~ 0.17 cm−3 with a magnetic field measuring ~ 2.5 x 10−3 μG.[3] In additional, 3C 191 contains a number of absorption lines.[5][6][7]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 "Query : 3C 191". Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=3C+191&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id. 
  2. ↑ 2.0 2.1 2.2 "NED results for object 3C 191". http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=3C+191&extend=no. 
  3. ↑ 3.0 3.1 Perry, Judith J.; Dyson, J. E. (1990-10-01). "3C 191 Revisited: Circumquasar Shells and Radio Jets". The Astrophysical Journal 361: 362. doi:10.1086/169202. ISSN 0004-637X. Bibcode: 1990ApJ...361..362P. https://ui.adsabs.harvard.edu/abs/1990ApJ...361..362P/abstract. 
  4. ↑ Sharma, M.; Arav, N.; Zhao, Q.; Dehghanian, M.; Byun, D.; Walker, G.; Sun, L.; Shen, L. et al. (10 April 2025). "The Distance of Quasar Outflows from the Central Source: The First Consistent Values from Emission and Absorption Determinations". The Astrophysical Journal 983 (1): 31. doi:10.3847/1538-4357/adb9e1. Bibcode: 2025ApJ...983...31S. 
  5. ↑ Hamann, Frederick W.; Barlow, T. A.; Chaffee, F. C.; Foltz, C. B.; Weymann, R. J. (2001-05-18). "High Resolution Spectra of Quasar AALs: 3C 191". arXiv:astro-ph/0105337.
  6. ↑ Williams, R. E.; Strittmatter, P. A.; Carswell, R. F.; Craine, E. R. (1975-12-01). "Splitting of absorption lines in 3C 191.". The Astrophysical Journal 202: 296–302. doi:10.1086/153976. ISSN 0004-637X. Bibcode: 1975ApJ...202..296W. https://ui.adsabs.harvard.edu/abs/1975ApJ...202..296W/abstract. 
  7. ↑ Hamann, Frederick W.; Barlow, T. A.; Chaffee, F. C.; Foltz, C. B.; Weymann, R. J. (2001-03-20). "High-Resolution Keck Spectra of the Associated Absorption Lines in 3C 191". The Astrophysical Journal 550 (1): 142–152. doi:10.1086/319733. ISSN 0004-637X. Bibcode: 2001ApJ...550..142H. 

Coordinates: Sky map 08h 04m 47.9625s, +10° 15′ 23.781″




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