Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2892....1y&link_type=abstract
The Astronomer's Telegram, #2892
Astronomy and Astrophysics
Astronomy
X-Ray, Binaries, Black Holes, Transients
Scientific paper
We have monitored the Galactic microquasar V4641 Sgr in a weak outburst (ATel #2785 and #2832) with Swift twice a week for about a month. The recent Swift/XRT data indicates that the 2-10 keV flux has been increasing from about 1-3 mCrab to about 9 mCrab. The observed fluxes were 1.0e-10, 9.1e-11, 1.5e-10, 1.6e-10, 2.1e-10, and 2.0e-10 erg cm^-2 s^-1 in the 2-10 keV range on September 9, 12-13, 18, 21, 26.
Nakahira Satoshi
Tomsick John A.
Yamaoka Kazutaka
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