Request for observations of the blazar 3C 66A

Details Request for observations of the blazar 3C 66A Request for observations of the blazar 3C 66A

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aan...411....1t&link_type=abstract

AAVSO Alert Notice 411

Physics

Blazar, 3C 66A, Gamma-Ray Source, Veritas, Aavso International Database

Scientific paper

Further to Alert Notice 353 (July 11, 2007), Dr. Markus Boettcher (Ohio University) requests optical observations of the blazar 3C 66A during its current high state. Optical observations will support gamma-ray observations by the VERITAS telescope in Arizona. All observations, including visual estimates and CCD photometry are encouraged. 3C 66A has been brighter than average for several weeks, and is now above the optical threshold of m(vis) ~ 14.1 for pursuing intensive optical coverage. CCD observers are asked to obtain high S/N observations with filters if possible; use an Rc if available for time series, and alternate with a B or V filter if also available. High signal to noise is preferred over faster observing cadence. One set of BVRcIc per night would also be very useful. Observations should be submitted to the AAVSO International Database as 3C 66A.

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