The stunted outbursts of UU Aquarii are likely mass-transfer events

Details The stunted outbursts of UU Aquarii are likely mass-transfer events The stunted outbursts of UU Aquarii are likely mass-transfer events

2011-05-06

arxiv.org/abs/1105.1381v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 2 postscript figures. To appear in the proceedings of "The Physics of Accreting Compact Binaries", Universal Academy

Scientific paper

We report a time-lapse eclipse mapping analysis of B-band time-series of the nova-like variable UU Aqr along a typical stunted outburst in 2002 August. Disc asymmetries rotating in the prograde sense in the eclipse maps are interpreted as a precessing elliptical disc with enhanced emission at periastron. From the disc expansion velocity a disc viscosity alpha_{hot}= 0.2 is inferred. The outburst starts with a 10-fold increase in uneclipsed light, probably arising in an enhanced disc wind; the disc response is delayed by 2 d. The results are inconsistent with the disc instability model and suggest that the stunted outburst of UU Aqr are the response of its viscous accretion disc to enhanced mass-transfer events.

Affiliated with

Also associated with

No associations

Rating

The stunted outbursts of UU Aquarii are likely mass-transfer events does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The stunted outbursts of UU Aquarii are likely mass-transfer events, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The stunted outbursts of UU Aquarii are likely mass-transfer events will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-653175