A Multi-Wavelength Blazar Campaign

Details A Multi-Wavelength Blazar Campaign A Multi-Wavelength Blazar Campaign

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.0401f&link_type=abstract

American Astronomical Society, AAS Meeting #211, #04.01; Bulletin of the American Astronomical Society, Vol. 39, p.730

Astronomy and Astrophysics

Astronomy

Scientific paper

We present optical fluxes for six blazars in B and V Johnson and R Cousins filters taken at the 0.9 meter WIYN telescope at Kitt Peak. Observations were made of Markarian 421, Markarian 501, 1ES 1959+650, 1ES 1218+304, 1ES 2344+514, and H 1426+428. These particular blazars were chosen because of their location in the Northern hemisphere and their classification as High frequency peaked BL Lacertae objects (HBLs). HBLs are neutrino point source candidates. If neutrinos were observed from these sources, we would be able to discriminate between some of the various possible mechanisms that could be causing the emission of high energy gamma rays as seen from these sources. As of yet, there is no real consensus about the mechanisms which can explain all of the observations at various wavelengths taken of these sources. Our optical observations were made over the time periods from April 2006 to June 2006 and from February 2007 to July 2007 on an almost nightly basis. Optical observations of these sources are being continued currently at WIYN. We hope to use these data in the future to do a time dependent analysis in conjunction with X-ray data taken by the NASA satellites, Rossi X-ray Timing Explorer (RXTE) and Swift, with data taken by the Whipple 10 meter gamma ray telescope in Arizona, and with neutrino observations being taken by IceCube at the South Pole. This work was supported by the REU and ASSURE programs through NSF award AST-0453442.

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