Astronomy:3C 371
| 3C 371 | |
|---|---|
 Hubble Legacy Archive Near-UV image of the jet coming out of 3C 371 | |
| Observation data (Epoch J2000) | |
| Constellation | Draco |
| Right ascension | 18h 06m 50.681s[1] |
| Declination | +69° 49′ 28.11″[1] |
| Redshift | 0.051[1][2] |
| Distance | 730 million light-years 224 Mpc[3] |
| Type | BL Lac[1][2][3] FRI RG[4] |
| Apparent magnitude (V) | 14.4[2] ±1.5[5] |
| Other designations | |
| UGC 11130, PGC 61417, 2E 4023, 7C 180717.90+694858.00, QSO B1807+698[1] | |
| See also: Quasar,List of quasars]] | |
3C 371 is a BL Lac object[1][2] located in the constellation Draco. With a redshift of 0.051,[2] this active galaxy is about 730 million light-years away.[3]
3C 371 is a well known object, first associated with the BL Lac class by Miller in 1975,[4] and is among the nearest and brightest BL Lacs.[4] Optical jet emission from 3C 371 was first detected in ground-based images by Nilsson et al. in 1997, and confirmed with HST (Scarpa et al.) in 1999.[4] The implied viewing angle may be less than 18 degrees.[4] But no superluminal motion has been detected, despite frequent monitoring by the Very Long Baseline Array (VLBA).[4]
There are photos of this object dating back to 1895, and they suggest that this objects magnitude can vary by ±1.5.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "3C 371". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=3C+371.
- ↑ 2.0 2.1 2.2 2.3 2.4 "NASA/IPAC Extragalactic Database". Results for 3C 371. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=3C+371&img_stamp=yes&extend=no.
- ↑ 3.0 3.1 3.2 "3C 371". XJET: X-Ray Emission from Extragalactic Radio Jets. 2008-01-11. http://hea-www.harvard.edu/XJET/source-d.cgi?3C_371.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Perlin, Eric S. et al. (2006). "Optical Polarimetry of the Jets of Nearby Radio Galaxies. I. The Data". The Astrophysical Journal 651 (2): 735–748. doi:10.1086/506587. Bibcode: 2006ApJ...651..735P.
- ↑ 5.0 5.1 Usher, Peter D.; Manley, Oscar P. (1968). "The Unusual Long-Term Behavior of 3c 371". Astrophysical Journal 151: L79–L82. doi:10.1086/180147. Bibcode: 1968ApJ...151L..79U.
External links
- Wikisky image of 3C 371
- New X-ray Jet in Nearby BL Lacertae Object 3C371 (Brandeis University Radio Astronomy)
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