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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Precursor flares in OJ 287
Astrophysical Journal, Volume 764, No. 1, Article 5, Year 2013
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Description
We have studied three most recent precursor flares in the light curve of the blazar OJ 287 while invoking the presence of a precessing binary black hole in the system to explain the nature of these flares. Precursor flare timings from the historical light curves are compared with theoretical predictions from our model that incorporate effects of an accretion disk and post-Newtonian description for the binary black hole orbit. We find that the precursor flares coincide with the secondary black hole descending toward the accretion disk of the primary black hole from the observed side, with a mean z-component of approximately zc = 4000 AU. We use this model of precursor flares to predict that precursor flare of similar nature should happen around 2020.96 before the next major outburst in 2022. © 2013. The American Astronomical Society. All rights reserved..
Authors & Co-Authors
Pihajoki, Pauli
Finland, Turku
Turun Yliopisto
Valtonen, Mauri J.
Finland, Turku
Turun Yliopisto
Zoła, Stanisław
Poland, Krakow
Uniwersytet Jagielloński
Poland, Krakow
Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej
Liakos, Alexios
Greece, Athens
National and Kapodistrian University of Athens
Drozdz, Marek
Poland, Krakow
Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej
Winiarski, Maciej
Poland, Krakow
Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej
Ogłoza, W.
Poland, Krakow
Uniwersytet Pedagogiczny Im. Komisji Edukacji Narodowej
Koziel-Wierzbowska, Dorota
Poland, Krakow
Uniwersytet Jagielloński
Provençal, Judith L.
United States, Newark
University of Delaware
United States, Greenville
Mt. Cuba Observatory
Nilsson, Kari
Finland, Turku
Turun Yliopisto
Berdyugin, Andrei V.
Finland, Turku
Turun Yliopisto
Lindfors, Elina J.
Finland, Turku
Turun Yliopisto
Reinthal, Riho
Finland, Turku
Turun Yliopisto
Sillanp̈äa, Aimo K.
Finland, Turku
Turun Yliopisto
Takalo, Leo O.
Finland, Turku
Turun Yliopisto
Salo, Heikki J.
Finland, Oulu
Oulun Yliopisto
Chandra, Sunil
India, Ahmedabad
Physical Research Laboratory India
Ganesh, Shashikiran
India, Ahmedabad
Physical Research Laboratory India
Baliyan, Kiran Singh
India, Ahmedabad
Physical Research Laboratory India
Gopakumar, Achamveedu
India, Mumbai
Tata Institute of Fundamental Research, Mumbai
Statistics
Citations: 36
Authors: 20
Affiliations: 9
Identifiers
Doi:
10.1088/0004-637X/764/1/5
ISSN:
0004637X