Observation and analysis of the new W-type W UMa eclipsing binary VSX J053024.8+842243

TL;DR

This study confirms the binary nature of W-type W UMa eclipsing binary VSX J053024.8+842243, models its physical parameters, and determines its distance, spectral type, and orbital characteristics using photometry and spectral analysis.

Contribution

The paper provides the first detailed physical and orbital characterization of the new W-type W UMa binary VSX J053024.8+842243 using multicolour photometry and light curve modeling.

Findings

Confirmed binary nature and established ephemeris

Derived physical parameters of components

Estimated distance and spectral type

Abstract

Using multicolour photometry we have confirmed the binary nature of the new W-type W UMa eclipsing binary VSX J053024.8+842243 and established its primary eclipse ephemeris to be HJD = 2455924.38150(26) + 0.4322929(1) * E. Using the light curve modelling code PHOEBE and published data on the evolution of W-type contact binaries we found the primary and secondary components to have masses 0.50 Msun and 1.44 Msun, radii 0.87 Rsun and 1.42 Rsun, luminosities 0.98 Lsun and 1.91 Lsun, temperatures 6145 K and 5702 K and binary orbit inclination 59.4{\deg}. We found the distance to the binary to be 511 parsec, its E(B-V) colour excess 0.04 and its intrinsic (B-V) colour index 0.62. A low resolution spectrum corrected for interstellar reddening confirmed its spectral type as G2V.