A curated review of TESS-era results across the major classes of variable stars, with illustrative light curves, but with no new observational or theoretical result.
KIC 2831097 - A 2-year orbital-period RR Lyrae binary candidate
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We report the discovery of a new Kepler first-overtone RR Lyrae pulsator, KIC 2831097. The pulsation shows large, 0.1 d amplitude, systematic phase variations that can be interpreted as light travel-time effect caused by orbital motion in a binary system, superimposed on a linear pulsation-period decrease. The assumed eccentric (e=0.47) orbit with the period of approximately 2 yr is the shortest among the non-eclipsing RR Lyrae binary candidates. The binary model gives a lowest estimate for the mass of the companion of 8.4 M_Sun, that places it among black hole candidates. Beside the first-overtone pulsation, numerous additional non-radial pulsation frequencies were also identified. We detected an ~47-d Blazhko-like irregular light-curve modulation.
fields
astro-ph.SR 1years
2025 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
Selected Results on Variable Stars Observed by TESS
A curated review of TESS-era results across the major classes of variable stars, with illustrative light curves, but with no new observational or theoretical result.