3C 249.1 is a Seyfert galaxy located in the constellation Draco. It hosts a powerful radio source[3] and is located at redshift 0.3115, with a peculiar radio structure. One of its radio lobes is classified as having a Fanaroff-Riley classification Type II, while the other lobe has no features nor containing hotspots.[4]
| 3C 249.1 | |
|---|---|
 SDSS image of 3C 249.1 | |
| Observation data (Epoch J2000) | |
| Constellation | Draco |
| Right ascension | 11h 04m 13.8777s[1] |
| Declination | +76° 58′ 58.170″[1] |
| Redshift | 0.311500[2] |
| Distance | 1,194 megaparsecs (3.89×109 ly) h−1 0.73[2] |
| Type | Sy1, Rad, QSO, X, IR, G, BH?, AG?, UV, gam[1] QSO[2] |
| Apparent magnitude (V) | 15.72[1] |
| Other designations | |
| LEDA 2821945, 4C 77.09, QSO B1100+773, PG 1100+772 | |
| See also: Quasar, List of quasars | |
3C 249.1 contains emission lines[5] with an extended emission-line region.[6] Its black hole is known to have a high accretion rate.[7]
The star formation rate in 3C 249.1 is estimated to be between ranges of ∼1-250 M⊙ yr-1, according to researchers using spectral energy distributions, as well as high resolution mid-infrared spectra of quasars from the Palomar-Green sample.[8]
Gallery
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3C 249.1 observed in radiowaves
References
edit- ^ a b c d "Query : 3C 249.1". Simbad. Centre de Données astronomiques de Strasbourg. Retrieved 2 June 2015.
- ^ a b c "NED results for object 3C 249.1". NASA/IPAC Extragalactic Database. Retrieved 2 June 2015.
- ^ Lonsdale, C. J.; Morison, I. (1983-05-01). "Asymmetries in four powerful radio sources". Monthly Notices of the Royal Astronomical Society. 203 (3): 833–851. Bibcode:1983MNRAS.203..833L. doi:10.1093/mnras/203.3.833. ISSN 0035-8711.
- ^ Marecki, A. (2012-09-01). "Are 3C 249.1 and 3C 334 restarted quasars?". Astronomy & Astrophysics. 545: A132. arXiv:1209.1284. Bibcode:2012A&A...545A.132M. doi:10.1051/0004-6361/201220010. ISSN 0004-6361.
- ^ Richstone, D. O.; Oke, J. B. (1977-04-01). "The nebulosity near the quasar 3C 249.1". The Astrophysical Journal. 213: 8–14. Bibcode:1977ApJ...213....8R. doi:10.1086/155121. ISSN 0004-637X.
- ^ Fu, Hai; Stockton, Alan (2006-10-10). "Integral Field Spectroscopy of the Extended Emission-Line Region of 3C 249.1*". The Astrophysical Journal. 650 (1): 80. arXiv:astro-ph/0606502. Bibcode:2006ApJ...650...80F. doi:10.1086/507418. ISSN 0004-637X.
- ^ Yang, Xiaolong; Yao, Su; Yang, Jun; Ho, Luis C.; An, Tao; Wang, Ran; Baan, Willem A.; Gu, Minfeng; Liu, Xiang; Yang, Xiaofeng; Joshi, Ravi (2020-12-01). "Radio Activity of Supermassive Black Holes with Extremely High Accretion Rates". The Astrophysical Journal. 904 (2): 200. arXiv:2007.11327. Bibcode:2020ApJ...904..200Y. doi:10.3847/1538-4357/abb775. ISSN 0004-637X.
- ^ Xie, Yanxia; Ho, Luis C.; Zhuang, Ming-Yang; Shangguan, Jinyi (2021-04-01). "The Infrared Emission and Vigorous Star Formation of Low-redshift Quasars". The Astrophysical Journal. 910 (2): 124. arXiv:2102.02695. Bibcode:2021ApJ...910..124X. doi:10.3847/1538-4357/abe404. ISSN 0004-637X.