Time-resolved spectroscopy of the polar RBS0324(=1RXS J023052.9-684203)

TL;DR

This study provides detailed time-resolved spectroscopic observations of the polar RBS0324, revealing complex emission line profiles, radial velocity behavior, and continuum flux modulation consistent with typical polars.

Contribution

First time-resolved spectroscopy over multiple orbital cycles of RBS0324, analyzing emission line profiles and radial velocities to characterize its polar nature.

Findings

Emission lines show complex, variable profiles.

Radial velocities have a semi-amplitude of about 250 km/s.

Continuum flux varies by approximately 1.5 magnitudes.

Abstract

We present time-resolved spectroscopy of the polar RBS0324(=1RXS J023052.9-684203) spanning more than one orbital cycle. The emission lines present complex and variable profiles. Radial velocities were determined for the HeII4686 and Hbeta emission lines. The curves are similar for both lines, with a semi-amplitude of about 250 km/s. The modulation of 1.5 mag of the continuum flux is compatible with those previously presented in the literature. All these characteristics are typical of polars.