The polar Catalysmic Variable 1RXS J173006.4+033813
Varun B. Bhalerao (1), Marten H. van Kerkwijk (1,2), Fiona A. Harrison, (3), Mansi M. Kasliwal (1), S. R. Kulkarni (1), Vikram R. Rana (3) ((1), Caltech, (2) Univ. of Toronto, (3) Space Radiation Lab - Caltech)
TL;DR
This paper reports the discovery and characterization of a polar cataclysmic variable star system, detailing its orbital period, magnetic field, and photometric behavior, contributing to understanding magnetic accretion processes.
Contribution
It presents the first detailed observational analysis of the newly discovered polar CV 1RXS J173006.4+033813, including its magnetic field, orbital parameters, and photometric modulation.
Findings
Orbital period of 120.21 minutes.
White dwarf magnetic field of approximately 42 MG.
Photometric modulation due to cyclotron beaming and ellipsoidal effects.
Abstract
We report the discovery of 1RXS J173006.4+033813, a polar cataclysmic variable with a period of 120.21 min. The white dwarf primary has a magnetic field of B = 42+6-5 MG, and the secondary is a M3 dwarf. The system shows highly symmetric double peaked photometric modulation in the active state as well as in quiescence. These arise from a combination of cyclotron beaming and ellipsoidal modulation. The projected orbital velocity of the secondary is K2 = 390+-4 km/s. We place an upper limit of 830+-65 pc on the distance.
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