Submillimeter Monitoring of Sgr A* with SHARC II/CSO

Details Submillimeter Monitoring of Sgr A* with SHARC II/CSO Submillimeter Monitoring of Sgr A* with SHARC II/CSO

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.3205d&link_type=abstract

American Astronomical Society Meeting 205, #32.05; Bulletin of the American Astronomical Society, Vol. 36, p.1399

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Scientific paper

We report on 450 and 850 micron monitoring of Sgr A* from the Caltech Submillimeter Observatory with SHARC II. A central point source is clearly visible at these wavelengths at 11" and 21" resolution, respectively; this emission is believed to come from plasma accreting onto, or ejected from, the supermassive black hole. Observations were carried out in March-April and September 2004 in coordination with other observatories. During the March-April run -- an apparently quiescent period -- the submillimeter flux density was on the low side of published values with a spectrum (in Jy) declining with increasing frequency. We describe searches for variability.
Research at the Caltech Submillimeter Observatory is supported by NSF grant AST-0229008.

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