000007349 001__ 7349
000007349 005__ 20250116202021.0
000007349 037__ $$aPOSTER-2025-0023
000007349 100__ $$aDileep, Athul
000007349 245__ $$aGround- and space-based investigation of the intermediate-age open star cluster NGC 2126
000007349 260__ $$c2024
000007349 269__ $$c2024-07-15
000007349 520__ $$aWe performed ground-based, time-series observations of the intermediate-age open cluster NGC 2126 with the 1.3-meter Devasthal Fast Optical Telescope (ARIES) and discovered 112 variable stars in an 18 x 18 arcmin field. Among these, 11 stars were known variables, for which we performed TESS full-frame image photometry in three different sectors. There were 17 new member variables and 84 variable field stars. The eclipsing binary V551 Aur is a member of NGC 2126 with high probability and has a pulsating component. This star was studied in detail by means of a medium-resolution spectrum and TESS photometry. The light curve was analyzed using a binary model, which was then removed to investigate the pulsational variability. The new variable members were classified based on their position in the HR diagram, shape of the phase-folded light curves, period and amplitude of variability. We also modeled the light curves of other binary stars in the field to determine their orbital parameters.
000007349 594__ $$aNO
000007349 700__ $$aJoshi, Santosh
000007349 700__ $$aLata, Sneh
000007349 700__ $$aLampens, Patricia
000007349 700__ $$aZúñiga Fernández, Sebastián
000007349 700__ $$aDe Cat, Peter
000007349 700__ $$aMkrtichian, David
000007349 773__ $$tTESS8/KASC15 Workshop, Porto, Portugal
000007349 8560_ $$fpeter.decat@ksb-orb.be
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000007349 980__ $$aCPOSTER