Time Resolved Photometric and Spectroscopic Analysis of Chemically Peculiar Stars
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.
- Publication:
-
New Windows on Massive Stars
- Pub Date:
- January 2015
- DOI:
- 10.1017/S1743921314006772
- Bibcode:
- 2015IAUS..307..218J
- Keywords:
-
- stars: chemically peculiar;
- variables : δ Scuti;
- techniques : photometric;
- spectroscopic;
- polarimetric