Dwarf Nova V1040 Centauri and Variable Stars in its Vicinity

TL;DR

This study presents photometric observations of the dwarf nova V1040 Cen, revealing its outburst behavior, orbital period, and nearby variable stars, contributing new data to the understanding of such systems.

Contribution

It provides the first detailed photometric analysis of V1040 Cen, including its outburst recurrence, orbital period, and discovery of eleven new variable stars in its vicinity.

Findings

V1040 Cen exhibits outbursts approximately every 40 days.

The orbital period of V1040 Cen is measured at about 1.45 hours.

Eleven new variable stars were identified near V1040 Cen.

Abstract

We present the results of a photometric campaign of the dwarf nova V1040 Cen. The light curve shows two normal outbursts with recurrence time ~ 40 days and amplitude ~ 2.5 mag. Quiescence data show oscillations with periods in the range ~ 0.1 days (2.4 h) to ~ 0.5 days (12 h) of unknown origin. We measured the orbital period of V1040 Cen to be P_orb=0.060458(80) days (1.451+-0.002 h). Based on the M_v-P_orb relation we found the distance of V1040 Cen to be 137+-31 pc. In this paper we also report the detection of eleven new variable stars in the field of the monitored dwarf nova.