The 1987-1990 optical outburst of the OVV quasar 3C 279

Details The 1987-1990 optical outburst of the OVV quasar 3C 279 The 1987-1990 optical outburst of the OVV quasar 3C 279

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj....100.1452w&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 100, Nov. 1990, p. 1452-1456. Research supported by Lowell Observatory, Kitt Peak Na

Astronomy and Astrophysics

Astronomy

48

Astronomical Photometry, Blazars, Quasars, Astronomical Photography, Light Curve, Luminosity, Variability

Scientific paper

Photometric observations indicate that the optically violent variable (OVV) quasar 3C 279 brightened dramatically in March of 1987 and remained in an extremely active state until March of 1990. Historically, this source has exhibited a series of energetic outbursts spanning a range of 8 mag in brightness. This paper presents a composite light curve of photometric data covering 61 yr in addition to UBVRI observations made during the recent period of activity. The long-term variability characteristics of 3C 279 is discussed. At maximum brightness, 3C 279 radiated at a rate of 1.6 x 10 to the 48th ergs per second between 0.1 and 1.0 micron with a mean spectral index of - 1.12. The total energy released in the optical band during the recent outburst is estimated to be 1.3 x 10 to the 55th ergs.

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