Time Resolved Photometric and Spectroscopic Analysis of Chemically Peculiar Stars. Issue Volume 9:Issue S307(2014) (23rd January 2015)

• Record Type: Journal Article
• Authors: Joshi, Santosh; Joshi, Gireesh C.; Joshi, Y. C.; Aggrawal, Rahul
• Editors: Meynet, Georges; Georgy, Cyril; Groh, José; Stee, Philippe
• Is Part Of: Proceedings of the International Astronomical Union. Volume 9:Issue S307(2014)
• Page Start: 218
• Page End: 219
• Publication Date: 2015-01-23
• Subjects: stars: chemically peculiar, -- variables : δ Scuti, -- techniques : photometric, -- spectroscopic, -- polarimetric; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921314006772
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Here we present the report on the "Nainital–Cape survey" research project aiming to search for and study the pulsational variability of main-sequence chemically peculiar (CP) stars. For this study, the time-series photometric observations of the sample stars were carried out at the 1.04 m ARIES telescope (India), while the high-resolution spectroscopic and spectro-polarimetric observations were carried out at the the 6.0 m Russian telescope. Under this project, we have recently found clear evidence of photometric variability in the Am star HD 73045, which is likely to be pulsating in nature with a period of about 36 min, hence adding a new member to the family of the δ Scuti pulsating variables that have peculiar abundances.