Optical Variability Study of the M33 Nuclear Region

Details Optical Variability Study of the M33 Nuclear Region Optical Variability Study of the M33 Nuclear Region

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.0501s&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #05.01; Bulletin of the American Astronomical Society, Vol. 33, p.1308

Astronomy and Astrophysics

Astronomy

Scientific paper

We use the 1.2m telescope at the F. L. Whipple Observatory to monitor the nuclear region of the nearby galaxy M33 and study possible optical variability of the remarkable source M33 X-8. The X-ray luminosity of M33 X-8 is 7x 1038 erg/s (0.1-2.4 keV), making it the most luminous non-transient source in the Local Group. We plan to obtain well-sampled BVI data, spanning six months (July-December 2001), for the nuclear region of M33. While the possible optical counterpart to X-8 is buried within the bright central star cluster (V ~ 14) in M33, using the technique of image subtraction we will be able to see any strongly variable source down to V ~ 20.

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