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Whole Earth Blazar Telescope Continuous Observation of 0716+71


Dr. Webb and his student Gopal Bhatta conceived of using the  whole Earth Blazar telescope to continuously monitor a particularly interesting Blazar for more than 24 hours.  Previously the light output is monitored and analyzed for small variations, but the timescales for these variations were on the order of a single night!  Thus one telescope could never observe it long enough to get a complete enough light curve because of sunrise!  So we contacted the WEBT group and enlisted the aid of 35 observers from 15 countries around the world.  The target dates were February 22, 23, 24, and 25.  The SARA telescope was used by Webb and Bhatta and that data is now being added to significant observations from around the world to achieve a light curve stretching for 30 continuous hours.  Not only that, but several data sets overlapped and some were done with different filters giving the researchers color changes as well as brightness changes.  As the data continues to roll in, Bhatta and Webb are processing it and cataloging it.  The goal of the research is to investigate the nature of the brightness fluctuations (microvariability) and infer the properties of the underlying relativistic jets that eminate from the massive black hole central engine.  So far data from 8 different countries has been received.  For more information, check out:   http://www.oato.inaf.it/blazars/webt/webb.html