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Nand Kumar Chakradhari & Santosh Joshi

The Nainital Cape Survey Project : A Search for Pulsation in Chemically Peculiar Stars

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Mots-clés : astronomie, astrophysique, étoiles, photométrie, variabilité

Abstract

The Nainital-Cape Survey is a dedicated search programme initiated in 1999 in the coordination of astronomers from SAAO South Africa, ARIES Nainital and ISRO Bangalore. Over the last 17 years a total of 345 chemically peculiar stars were monitored for photometric variability, making it one of the longest ground-based survey to search for pulsation in chemically peculiar stars in terms of both time span and sample size. Under this survey, we discovered rapid pulsation in the Ap star HD12098 while δ Scuti-type pulsations were detected in seven Am stars. Those stars in which pulsations were not detected have also been tabulated along with their detailed astrophysical parameters for further investigation.

Keywords : astronomy, astrophysics, photometry, stars, variability

To cite this article

Nand Kumar Chakradhari & Santosh Joshi, «The Nainital Cape Survey Project : A Search for Pulsation in Chemically Peculiar Stars», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 87 - Année 2018, Actes de colloques, First Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - November 2016 - Nainital, India, 150 - 153 URL : https://popups.uliege.be:443/0037-9565/index.php?id=7614.

About: Nand Kumar Chakradhari

SoS in Physics and Astrophysics, Pt. R. S. University, Raipur, 492010, India, nkchakradhari@gmail.com

About: Santosh Joshi

Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 2631002, India, santosh@aries.res.in