Optically violent variable quasar in the constellation Virgo
3C 279
Observation data (J2000 epoch)
Constellation
Virgo
Right ascension
12h 56m 11.1s[1]
Declination
−05° 47′ 22″[1]
Redshift
0.5362 ± 0.0004[1]
Distance
5.0 Gly
Apparent magnitude (V)
17.8[1]
Other designations
3C279, 4C –05.55, NRAO 413, PKS 1253–05
3C 279 (also known as 4C–05.55, NRAO 413, and PKS 1253–05) is an optically violent variable quasar (OVV), which is known in the astronomical community for its variations in the visible, radio and x-ray bands.[2] The quasar was observed to have undergone a period of extreme activity from 1987 until 1991.[3] The Rosemary Hill Observatory (RHO) started observing 3C 279 in 1971,[3] the object was further observed by the Compton Gamma Ray Observatory in 1991, when it was unexpectedly discovered to be one of the brightest gamma ray objects in the sky.[4] It is also one of the brightest and most variable sources in the gamma ray sky monitored by the Fermi Gamma-ray Space Telescope. It was used as a calibrator source for Event Horizon Telescope observations of M87* that resulted in the first image of a black hole.[5]
^ abcd"NASA/IPAC Extragalactic Database". Results for 3C 279. Retrieved 2006-12-04.
^Resonant absorption troughs in the gamma-ray spectra of QSO See section 4.2
^ abJ. R. Webb; M. T. Carini; S. Clements; S. Fajardo; P. P. Gombola; R. J. Leacock; et al. (1990). "The 1987-1990 optical outburst of the OVV quasar 3C 279". Astronomical Journal. 100: 1452–1456. Bibcode:1990AJ....100.1452W. doi:10.1086/115609.
^APOD: December 26, 1998 - Gamma Ray Quasar
^The Event Horizon Telescope Collaboration (10 April 2019). "First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole". The Astrophysical Journal. 875 (1): 22. arXiv:1906.11243. doi:10.3847/2041-8213/ab1141. hdl:10150/633754.
3C279 (also known as 4C–05.55, NRAO 413, and PKS 1253–05) is an optically violent variable quasar (OVV), which is known in the astronomical community...
the first 20 microarcsecond resolution images of the archetypal blazar 3C279 it observed in April 2017. These images, generated from observations over...
why, 16 March 1991 The superluminal radio source in the gamma-ray blazar 3C279 Porcas, R. W (1981). "Superluminal quasar 3C179 with double radio lobes"...
appearance to BL Lac objects but generally have stronger broad emission lines. 3C279 S5 0014+81 "APEX takes part in sharpest observation ever". ESO Press Release...
quasar 3C 9 is cited by Kardashev as early as 1971. The study of the quasar 3C 273 shows that it has a solid structure. Other quasars (3C279, 3C 345, 3C 84)...
and Australia. The change in the source visibility that they measured for 3C279, combined with changes in total flux density, indicated that a component...
first direct image of a black hole. The detection in May 2012 of the quasar 3C279 at 1.3 mm wavelength on the 9386 km baseline between APEX and the SMA in...
ABCACB. The cubic 3C-SiC, also called β-SiC, has ABC stacking. The different polytypes have widely ranging physical properties. 3C-SiC has the highest...
(May 2000). "Production of the High Energy-Momentum Spectra of Quasars 3C279 and 3C 273 Using the Penrose Mechanism". Bulletin of the American Astronomical...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
"Multiwavelength Observations of a Dramatic High‐Energy Flare in the Blazar 3C279". The Astrophysical Journal. 497 (1): 178–187. arXiv:astro-ph/9711243. Bibcode:1998ApJ...
(NGC 5257 and NGC 5258) Arp 271 (NGC 5426 and NGC 5427) BR 1202-0725 3C 273 3C2793C 298 4C 04.42 Eyes Galaxies GR 8 IC 1011 IC 1101 IC 3038 IC 3078 IC...
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