BVRcIc photometric evolution and flickering during the 2010 outburst of the recurrent nova U Scorpii

Details BVRcIc photometric evolution and flickering during the 2010 outburst of the recurrent nova U Scorpii BVRcIc photometric evolution and flickering during the 2010 outburst of the recurrent nova U Scorpii

2010-03-15

arxiv.org/abs/1003.2870v1

2010, IBVS 5930

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

published March 12

Scientific paper

CCD BVRcIc photometric observations of the 2010 outburst of the recurrent nova U Scorpii are presented. The light-curve has a smooth development characterized by t2(V)=1.8 and t3(V)=4.1 days, close to the t2(V)=2.2 and t3(V)=4.3 days of 1999 outburst. The plateau phase in 2010 has been brighter, lasting shorter and beginning earlier than in the 1999 outburst. Flickering, with an amplitude twice larger in $I_{\rm C}$ than in $B$ band, was absent on day +4.8 and +15.7, and present on day +11.8, with a time scale of about half an hour.

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