The ``Outside-In'' Outburst of HT Cassiopeiae

Details The ``Outside-In'' Outburst of HT Cassiopeiae The ``Outside-In'' Outburst of HT Cassiopeiae

1999-07-12

arxiv.org/abs/astro-ph/9907144v1

Astronomy and Astrophysics

Astrophysics

9 pages, 11 figures, to appear in MNRAS

Scientific paper

10.1046/j.1365-8711.1999.03001.x

We present results from photometric observations of the dwarf nova system HT Cas during the eruption of November 1995. The data include the first two--colour observations of an eclipse on the rise to outburst. They show that during the rise to outburst the disc deviates significantly from steady state models, but the inclusion of an inner-disc truncation radius of about 4 $R_{wd}$ and a ``flared'' disc of semi-opening angle of $10^{\circ}$ produces acceptable fits. The disc is found to have expanded at the start of the outburst to about $0.41R_{L1}$, as compared to quiescent measurements. The accretion disc then gradually decreases in radius reaching $<0.32R_{L1}$ during the last stages of the eruption. Quiescent eclipses were also observed prior to and after the eruption and a revised ephemeris is calculated.

Affiliated with

Also associated with

No associations

Rating

The ``Outside-In'' Outburst of HT Cassiopeiae 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 ``Outside-In'' Outburst of HT Cassiopeiae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The ``Outside-In'' Outburst of HT Cassiopeiae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-130760