BG CMi time keeping

TL;DR

This paper presents twelve seasons of photometric data on BG CMi, revealing a significant change in the white dwarf's spin-up between 1996 and 2005, along with evidence of sideband signals.

Contribution

It provides a comprehensive long-term observational analysis of BG CMi, highlighting changes in the white dwarf's spin behavior over a decade.

Findings

Major change in spin-up between 1996 and 2005

Detection of sideband signals

Extended photometric monitoring data

Abstract

Twelve seasons, from 2005 to 2016, of photometric monitoring of the intermediate polar BG CMi are presented and are compared with previous observations. The spin up of the white dwarf is found to have undergone a major change between 1996 and 2005. There is also some evidence for sideband signals.