000006127 001__ 6127
000006127 005__ 20230131112342.0
000006127 037__ $$aPOSTER-2023-0010
000006127 100__ $$aJoshi, S.
000006127 245__ $$aStudy of Chemically Peculiar Stars-III: High-resolution Spectroscopy and K2 Photometry of New Variables in the Region of M44
000006127 260__ $$c2022
000006127 269__ $$c2022-09-19
000006127 500__ $$aDOI: 10.5281/zenodo.7118369
000006127 520__ $$aWe aim to carry out a study on the photometric and spectroscopic variabilities of four stars monitored in the Nainital-Cape survey. We analysed the photometric variability of the target stars, HD 73135, BD +19° 2045, BD +19° 2046, and TYC 1395-855-1, using ground-based differential photometric and K2 data. Spectrophotometric and high-resolution spectroscopic data are used to determine the fundamental parameters and chemical abundances. Although all the target are found to be non-variable based on ground-based differential photometry, the analysis of high-precision K2 photometric time-series reveals that HD 73135, BD +19° 2045, and BD +19° 2046 are variable. We do not detect photometric variability in TYC 1395-855-1. Our analyses show that the three stars, HD 73135, BD +19° 2045, BD +19° 2046, which are non-variable based on ground- based observations exhibit rotational variability in Kepler K2 data while TYC 1395-855-1 remains constant in both data sets. Based on the chemical abundance analysis, HD 73135 is an Am star, while BD +19° 2045 is non-Am.
000006127 594__ $$aNO
000006127 6531_ $$aStars: chemically peculiar
000006127 6531_ $$aStars: rotation
000006127 6531_ $$aStars: starspots
000006127 6531_ $$aStars: general
000006127 700__ $$aTrust, O.
000006127 700__ $$aWilliams, E.P.
000006127 700__ $$aSemenko, E.
000006127 700__ $$aDe Cat, P.
000006127 700__ $$aJurua, E.
000006127 700__ $$aHoldsworth, L.D.
000006127 700__ $$aGarcía, R.A.
000006127 700__ $$aAbedigamba, O.P.
000006127 773__ $$tSub-Saharan Africa Astronomy Summer School "Galaxies, Extrasolar Planets, and Stellar Physics: Gazing into the deep space, searching for new worlds, and insights into stellar interior physics", Entebbe, Uganda
000006127 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2022ssaa.confE...6J/abstract
000006127 8560_ $$fpeter.decat@observatoire.be
000006127 8564_ $$s2901323$$uhttp://publi2-as.oma.be/record/6127/files/poster_SSAASS_Otto_Trust.pdf
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000006127 980__ $$aCPOSTER