BG Tri an example of a low inclination RW Sex-type novalike
Abstract
We analysed a wealth of optical spectroscopic and photometric observations of the bright (V=11.9) cataclysmic variable BG Tri. TheGaiaDR2 parallax gives a distance d=334(8)pc to the source, making the object one of the intrinsically brightest nova-like variables seen under a low orbital inclination angle. Time-resolved spectroscopic observations revealed the orbital period of P(orb)=3.h8028(24). Its spectroscopic characteristics resemble RW Sex and similarnova-like variables. We disentangled the H alpha emission line into two components, and show that one component forms on the irradiated face of the secondary star. We suggest that the other one originates at a disc outflow area adjacent to the L3 point.
Keywords
Cite
@article{arxiv.2102.00328,
title = {BG Tri an example of a low inclination RW Sex-type novalike},
author = {M. S. Hernandez and G. Tovmassian and S. Zharikov and B. T. Gaensicke and D. Steeghs and A. Aungwerojwit and P. Rodriguez-Gil},
journal= {arXiv preprint arXiv:2102.00328},
year = {2021}
}
Comments
Accepted for publication in MNRAS, 11 pages, 10 figures