The 3-mm flux density monitoring of Sagittarius A* with the ATCA

Details The 3-mm flux density monitoring of Sagittarius A* with the ATCA The 3-mm flux density monitoring of Sagittarius A* with the ATCA

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..248..204l&link_type=abstract

A Giant Step: from Milli- to Micro-arcsecond Astrometry, Proceedings of the International Astronomical Union, IAU Symposium, Vol

Astronomy and Astrophysics

Astronomy

Galaxy: Center, Techniques: Interferometric

Scientific paper

We have performed monitoring observations of the 3-mm flux density toward the Galactic center compact radio source Sgr A* with the ATCA since 2005 October. It has been found that during several observing epochs Sgr A* was quite active, showing significant intraday variation. Here we report the detection of an IDV in Sgr A* on 2006 August 13, which exhibits a 27% fractional variation in about 2 hrs.

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