Multi-wavelength Monitoring of 6 Gamma-ray Blazars at Maria Mitchell and Other Observatories

Details Multi-wavelength Monitoring of 6 Gamma-ray Blazars at Maria Mitchell and Other Observatories Multi-wavelength Monitoring of 6 Gamma-ray Blazars at Maria Mitchell and Other Observatories

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714237s&link_type=abstract

American Astronomical Society, AAS Meeting #217, #142.37; Bulletin of the American Astronomical Society, Vol. 43, 2011

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Scientific paper

We have observed 6 gamma-ray bright blazars in the B and R bands (and V and I bands for some sources) using the Maria Mitchell Observatory 17” Dall-Kirkham and 24” Ritchey-Chretien reflectors during 2010. In all of the blazars, we have detected variability on a timescale of days to weeks; in OT+081, a dramatic outburst occurred in August 2010 when the flux at R band increased by 3.5 magnitudes. We supplement our optical R band observations with data taken at other telescopes, including RXTE, Swift, and public data from the Fermi Gamma-Ray Space Telescope's Large Area Telescope. This allows us to form the spectral energy distribution (SED) of each blazar. We further support our dataset by comparing our multi wavelength light curves with 43 GHz VLBA images of the radio jets at 43 GHz for all of the objects. We discuss the connection between variations in the optical bands and at other frequencies, as well as the physical constraints that time delays and SEDs impose on the high-energy emission mechanism.
The research at Boston U. was supported by NSF grant AST-0907893 and NASA grant NNX08AV65G (Fermi). The research at Maria Mitchell Obs. was supported by the NSF/REU grant AST-0851892 and by the Nantucket Maria Mitchell Association.

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