000006129 001__ 6129
000006129 005__ 20240126101909.0
000006129 0247_ $$2DOI$$a10.1093/mnras/stad533
000006129 037__ $$aSCART-2023-0056
000006129 100__ $$aPanchal, A.
000006129 245__ $$aOptical characterization and Radial velocity monitoring with Belgian and Indian Telescopes (ORBIT): the eclipsing binaries EPIC 211982753 and EPIC 211915147
000006129 260__ $$c2023
000006129 520__ $$aThe K2 eclipsing binary (EB) candidates EPIC 211982753 (hereinafter called EPIC2753) and EPIC 211915147 (hereinafter called EPIC5147) are characterized with the help of photometric and high-resolution spectroscopic data. The light curve analysis uses the Rc-band photometric data from the 1.3-m Devasthal Fast Optical Telescope (DFOT, India), ASAS-3, and K2 observations. High-resolution échelle spectra are collected using the HERMES spectrograph at the 1.2-m MERCATOR telescope (La Palma, Spain). The synthetic light and radial velocity curves are generated with the help of the modeling package PHOEBE 1.0. The orbital period analysis based on the ~3.2 yr of K2 observations does not show any change in the orbital period of both targets. The component masses M_{1,2} are estimated as 1.69(0.02) and 1.59(0.02) solar mass for EPIC2753, and 1.48(0.01) and 1.27(0.01) solar mass for EPIC5147. Both systems are high mass-ratio EBs with q>0.85. The component radii R_{1,2} are found to be 1.66(0.02) and 1.53(0.02) solar radius for EPIC2753, and 1.80(0.05) and 1.42(0.05) solar radius for EPIC5147. The distances of EPIC2753 and EPIC5147 are determined as 238(4) and 199(5) pc, respectively. MESA Isochrones and Stellar Tracks are used to understand the evolutionary status of both systems.
000006129 594__ $$aNO
000006129 6531_ $$aBinaries: photometric
000006129 6531_ $$aTechniques: spectroscopic
000006129 6531_ $$aBinaries : eclipsing
000006129 6531_ $$aBinaries : radial velocity
000006129 6531_ $$aTechniques : stars: fundamental parameters
000006129 700__ $$aJoshi, Y.C.
000006129 700__ $$aDe Cat, P.
000006129 700__ $$aLampens, P.
000006129 700__ $$aGoswami, A.
000006129 700__ $$aTiwari, S.N.
000006129 773__ $$c677--689$$n1$$pMonthly Notices of the Royal Astronomical Society$$v521$$y2023
000006129 8560_ $$fpeter.decat@observatoire.be
000006129 8564_ $$s2599592$$uhttp://publi2-as.oma.be/record/6129/files/Panchal2023_MNRAS521_677.pdf
000006129 8564_ $$s4379$$uhttp://publi2-as.oma.be/record/6129/files/Panchal2023_MNRAS521_677.gif?subformat=icon$$xicon
000006129 8564_ $$s7813$$uhttp://publi2-as.oma.be/record/6129/files/Panchal2023_MNRAS521_677.jpg?subformat=icon-180$$xicon-180
000006129 905__ $$apublished in
000006129 980__ $$aREFERD