High speed photometry of faint cataclysmic variables - VI. Car2, V1040 Cen, Ha 075648, IL Nor (Nova Nor 1893), HS Pup (Nova Pup 1963), SDSS J2048-06, CSS 081419-005022 and CSS 112634-100210

TL;DR

This study presents photometric observations of eight faint cataclysmic variables, revealing their variability patterns, orbital periods, and confirming the identification of some nova remnants, thereby enhancing understanding of their behaviors.

Contribution

The paper provides new photometric data and orbital period determinations for several faint cataclysmic variables, including the identification of the nova remnant IL Nor.

Findings

V1040 Cen showed dwarf nova and quasi-periodic oscillations.

Ha 075648 exhibits strong flickering and possible orbital modulation.

CSS 081419-005022 has an orbital period of 1.796 hours.

Abstract

We have observed 8 faint cataclysmic variable stars photometrically. The nova-like Car2 was extensively sampled but showed little variability. V1040 Cen was observed near the end of a dwarf nova outburst and possessed dwarf nova and quasi-periodic oscillations. Ha 075648 has strong large amplitude flickering and a possible orbital modulation at 3.49 h. The correct identification for the nova remnant IL Nor (Nova Nor 1893) has been established. HS Pup (Nova Pup 1963) has a possible orbital period of 3.244 h. SDSS J2048-06 is a low mass transfer dwarf nova that in quiescence shows slow variations at 7.67 h (though poorly sampled with our observations) and an orbital modulation at 87.26 min. The dwarf nova CSS 081419-005022 has an orbital period of 1.796 h and the eclipsing dwarf nova CSS 112634-100210 has an orbital period of 1.8581 h.