Optical Variability of MRK 421

Details Optical Variability of MRK 421 Optical Variability of MRK 421

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...20314606e&link_type=abstract

American Astronomical Society Meeting 203, #146.06; Bulletin of the American Astronomical Society, Vol. 36, p.590

Astronomy and Astrophysics

Astronomy

Scientific paper

We present an analysis of the optical variability of the BL Lac object MRK 421 as one step in a larger study to monitor the optical emission from a sample of TeV blazars that are part of a multi-wavelength observing campaign, which, in addition to optical, includes observations at x-ray, radio, and TeV gamma-ray wavebands. MRK 421 was observed for 62 nights between November 2002 and April 2003. The observations were done on the 0.9m WIYN telescope located at Kitt Peak in the B and V, with some additional observations in the U, I, and R filters. The data show daily blazar variability at optical wavelengths, and we examined the correlations between the optical bands.

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