Hot spot manifestation in eclipsing dwarf nova HT Cassiopeiae
K. Bakowska, A. Olech
TL;DR
This paper reports the detection and analysis of the hot spot in the eclipsing dwarf nova HT Cassiopeiae during a superoutburst, providing observational evidence supporting the EMT model for dwarf novae.
Contribution
First direct detection of hot spot brightness variation during a superoutburst in HT Cas, supporting the EMT model for dwarf novae.
Findings
Hot spot brightness varied significantly during superoutburst.
Detected hot spot manifestation as evidence for EMT model.
Analyzed eight reconstructed light curves of hot spot eclipses.
Abstract
We report the detection of the hot spot in light curves of the eclipsing dwarf nova HT Cassiopeiae during its superoutburst in 2010 November. Analysis of eight reconstructed light curves of the hot spot eclipses showed directly that the brightness of the hot spot was changing significantly during the superoutburst. Thereby, detected hot spot manifestation in HT Cas is the newest observational evidence for the EMT model for dwarf novae.
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Taxonomy
TopicsAstrophysical Phenomena and Observations · Pulsars and Gravitational Waves Research · Astrophysics and Cosmic Phenomena