20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

On the role of short period Cataclysmic Variables from Catalina Sky Survey

21 May 2015, 08:00
15m
White Lotus ()

White Lotus

Oral presentation Astronomy, Astrophysics, and Cosmology Astronomy, Astrophysics and Cosmology (Sponsored by NARIT)

Speaker

Ms Sirinapa Arjyotha (Program of Physics, Faculty of Science and Technology, Chiang Rai Rajabhat University, Chiangrai, Thailand 57100)

Description

Cataclysmic Variables (CVs) are close binaries consisting of an accreting white dwarf and a low-mass main sequence companion. We have initiated in searching new CVs using their outburst properties with the primary aim to identify short-period systems which are rare but are great of importance to understand close binary evolution. Here, we present time-resolved photometry of new CVs in superoutburst discovery by Catalina Real-Time Transient Survey (CRTS). The observations have been carried out at 2.4 m Thai National Telescope, Doi Inthanon, and 0.6 m PROMPT8 telescope, located at Cerro Tololo Observatory, Chile. Superhump structure found in their light curves suggested that these CVs are short- period systems with the orbital period below the 2-3 h period gap. Furthermore, we will discuss recent status of CRTS CVs sample compared to the previously known CVs discovered by various means.

Primary author

Ms Sirinapa Arjyotha (Program of Physics, Faculty of Science and Technology, Chiang Rai Rajabhat University, Chiangrai, Thailand 57100)

Co-author

Dr Amornrat Aungwerojwit (Department of Physics, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand)

Presentation Materials

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