Recent optical burst of the symbiotic star CH Cygni

Details Recent optical burst of the symbiotic star CH Cygni Recent optical burst of the symbiotic star CH Cygni

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2394....1s&link_type=abstract

The Astronomer's Telegram, #2394

Astronomy and Astrophysics

Astronomy

1

Optical, X-Ray, Cataclysmic Variables

Scientific paper

Our recent UBVR photometric monitoring of the symbiotic star CH Cygni revealed a new, strong burst in its U light curve. From 2009 Sept. 25 to Oct. 21 the star brightened from U = 10.9 to U = 9.7, respectively. However, the slope of the brightening is unknown, because of a lack of the data. Then CH Cyg persisted at a bright stage at U ~ 9.6 to 2009 November 23, i.e. for 33 days. Following observations indicated a fading in the brightness to U ~ 11.1, as given by our last measurements on 2010 January 15th and 16th.

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