eclipsing binary Archives

CH Ind timing and inference. Top: the six differential nodes 𝐷 from equation (1); subtracting primary and secondary O–C values removes their common ephemeris or LTTE trend and isolates the first-order apsidal signal. Bottom: Monte Carlo posteriors for the displayed 0.08-dex common log 𝑘2 systematic; horizontal segments show central 68 per cent intervals.-- [astro-ph.EP]

Stellar Tidal Systematics In Apsidal-motion Searches For Circumbinary Planets: CH Ind And SW CMa

by Keith CowingAugust 16, 2026August 16, 2026

[astro-ph.EP] Thornton et al. (2026) reported 27 non-transiting circumbinary-planet candidates from excess apsidal motion in TESS eclipsing-binary timings. The classical stellar contribution is sensitive to target-specific radii, apsidal constants k2, […]

A gas giant planet looms in the foreground at right, illuminated by a pair of stars, in this artist’s concept of a world in a binary system. NASA’s TESS (Transiting Exoplanet Survey Satellite) has found planets in two binary star systems by looking for stellar dimming as the planets cross in front of one of the stars. Astronomers have now demonstrated a new method of finding planets in these systems by focusing on the timing of the stars’ mutual eclipses. NASA's Goddard Space Flight Center/Chris Smith (USRA)

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release

Stellar Eclipses Observed By TESS Shed Light On Possible New Worlds

by Keith CowingMay 5, 2026May 5, 2026

A study of NASA’s TESS (Transiting Exoplanet Survey Satellite) data on stellar pairs undergoing mutual eclipses has uncovered more than two dozen candidate exoplanets, or worlds beyond our solar system. […]