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Ground-based photometric survey to search for the pulsational variability in Bp, Ap, and Am stars
- Publication Year :
- 2019
- Publisher :
- arXiv, 2019.
-
Abstract
- We present the analysis of time-series of photoelectric data of a Bp star and four new Ap stars observed photoelectrically under the Nainital-Cape survey programme. The project was started about two decades ago, aiming to search for new rapidly oscillating Ap stars. The frequency analysis of the time-series of these stars obtained on multiple nights did not reveal any pulsational variability. In addition to this, we have performed the analysis of time-series differential CCD photometry of the two pulsating Am stars HD13038 and HD13079, where we find some evidence of new periods. To expand and strengthen the ongoing survey work, we propose to build-up a tri-national collaboration of astronomers from India, South Africa and Belgium.<br />Comment: 8 pages, 5 figures, conference proceedings accepted under 2nd Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop, held in Brussels (Belgium), 9-12 October 2018
- Subjects :
- stars
Physics
differential
Multidisciplinary
photometry
variability
δ Scuti
Astronomy
FOS: Physical sciences
grande vitesse
Am
Photometry (optics)
étoiles
Stars
roAP
high-speed
Astrophysics - Solar and Stellar Astrophysics
photométrie
variabilité
Nainital-Cape
pulsations
Ap
Solar and Stellar Astrophysics (astro-ph.SR)
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....116c13ad027fbaf06a5e16bb09bdd9f4
- Full Text :
- https://doi.org/10.48550/arxiv.1911.01665