Candidate triple-star system with ellipsoidal components detected in Vulpecula through TESS photometry

TL;DR

This paper reports the detection of a candidate triple star system with ellipsoidal components in Vulpecula using TESS photometry, identifying two orbital periods and discussing possible pulsation effects.

Contribution

It presents the first identification of a candidate triple ellipsoidal star system in Vulpecula through TESS data analysis, including orbital period determination.

Findings

Orbital period of A-BC pair is 4.269 days.

Inner B-C system has an orbital period of 0.610 days.

Shorter period may be due to pulsations, not orbital motion.

Abstract

MaGiV-1 is a candidate triple ellipsoidal star system in Vulpecula at coordinates RA(J2000) 19:52:19.13 DEC(J2000) +23:29:59.7 classified as ELL+ELL, number 2344411 in AAVSO VSX database. Through photometry from the TESS Space Telescope, two significant periods describing the orbital times of the components were identified using the Fourier transform. The analysis led to determining P(A-BC) = 4.269d the orbital period of A-BC pair, the primary component with the secondary component described by another pair, and P(BC) = 0.610d the orbital period of B-C pair, the inner ellipsoidal system. However, it cannot be completely ruled out that the shorter period can be explained by pulsations of one of the two components (e.g. by the GDOR type).