6127 20230131112342.0 POSTER-2023-0010 Joshi, S. Study of Chemically Peculiar Stars-III: High-resolution Spectroscopy and K2 Photometry of New Variables in the Region of M44 2022 2022-09-19 DOI: 10.5281/zenodo.7118369 We 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. NO Stars: chemically peculiar Stars: rotation Stars: starspots Stars: general Trust, O. Williams, E.P. Semenko, E. De Cat, P. Jurua, E. Holdsworth, L.D. García, R.A. Abedigamba, O.P. Sub-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 peter.decat@observatoire.be 2901323 http://publi2-as.oma.be/record/6127/files/poster_SSAASS_Otto_Trust.pdf 29733 http://publi2-as.oma.be/record/6127/files/poster_SSAASS_Otto_Trust.gif?subformat=icon icon 30612 http://publi2-as.oma.be/record/6127/files/poster_SSAASS_Otto_Trust.jpg?subformat=icon-180 icon-180 https://ui.adsabs.harvard.edu/abs/2022ssaa.confE...6J/abstract CPOSTER