A expected bright radio flare of Cygnus X-3

Details A expected bright radio flare of Cygnus X-3 A expected bright radio flare of Cygnus X-3

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1092....1t&link_type=abstract

The Astronomer's Telegram, #1092

Astronomy and Astrophysics

Astronomy

3

Radio, Millimeter, Gamma Ray, Request For Observations, Binaries, Black Holes, Transients

Scientific paper

We detected a new powerful flare from the microquasar Cygnus X-3 with the RATAN-600 radio telescope on June 1. The measured flux densities are 3.2, 4.73, 3.42, 2.7, 2.34, 1.54 and 1.15 Jy at 1, 2.3, 4.8, 7.7, 11.2, 21.7 and 30 GHz respectively (MJD54252.05). Thus the spectral index is -0.54 at frequencies higher 2.3 GHz. The spectrum is similar to one on Jan 28 in the beginning of the powerful Jan-Feb flare of Cygnus X-3: http://cats.sao.ru/~satr/XB/CygX-3/c3_sp_2007Jun1.png .

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