The Polar CSS 081231:071126+440405 at a Low Accretion Rate
Katie Thorne, Peter Garnavich, Katherine Mohrig
TL;DR
This study presents time-resolved photometry of the eclipsing polar CSS 081231:071126+440405, revealing accretion hotspot behavior and variability at a low accretion rate.
Contribution
First detailed photometric analysis of CSS 081231:071126+440405 at low accretion rates, highlighting hotspot dynamics and accretion variability.
Findings
Hotspot lags 10 degrees behind secondary star.
Evidence of sputtering accretion episodes.
Hotspot nearly disappears during certain orbits.
Abstract
Time-resolved photometry of the eclipsing polar CSS 081231:071126+44040 was obtained with the Vatican Advanced Technology Telescope (VATT) on four nights in October 2009. The light curve shows a single accretion hotspot lagging 10 degrees behind the secondary. The last two nights of data show "sputtering" accretion and the hotspot nearly disappears in consecutive orbits.
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Taxonomy
TopicsAstronomical Observations and Instrumentation · Astronomy and Astrophysical Research · Stellar, planetary, and galactic studies