The long-term optical behavior of BL Lac object S5 0716+714

Details The long-term optical behavior of BL Lac object S5 0716+714 The long-term optical behavior of BL Lac object S5 0716+714

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010scchg..53.1370z&link_type=abstract

Science China Physics, Mechanics and Astronomy, Volume 53, Issue 7, pp.1370-1374

Astronomy and Astrophysics

Astronomy

1

Bl Lacertae Objects, S5 0716+714, Optical Behavior

Scientific paper

BL Lac object S5 0716+714 is a well-studied object. In this paper, the available optical ( BVRI) data of this source are compiled, and the B-, V-, R- and I-band light curves are constructed. Each of them is analyzed by means of the discrete correlation function (DCF) method, the structure function (SF) method and the z-transformed discrete correlation function (ZDCF) method. The results imply that there is a possible periodic variation of 1211 days in each passband light curve. The source varies violently and complicatedly, and exhibits a brightening trend in the light curves.

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