CAOSP abstracts, Volume: 49, No.: 2, year: 2019

Author(s): Pakštienė, E.; Janulis, R.; Drazdauskas, A.; Klebonas, L.; Mikolaitis, Š.; Tautvaišienė, G.; Minkevičiūtė, R.; Bagdonas, V.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 49, no. 2, p. 397-399.
Date: 5/2019
Title: Variability analysis of δ Scuti candidate stars
Keyword(s): oscillations (including pulsations), stars: variables: delta Scuti
Pages: 397 -- 399
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: The Hipparcos catalogue contains stars suspected to be δ Scuti variables for which extensive groundbased observations and characterisation of variability are desired. We obtained 24 215 CCD images with the 35/51 cm Maksutov-type robotic telescope at the Molėtai Astronomical Observatory (MAO, Lithuania) of thirteen δ Scuti candidates selected from the Hipparcos catalogue in order to characterize their variability. We confirm that twelve of them are variables and pulsate with frequencies typical for δ Scuti-type stars. Five of them may be hybrid δ Scuti-≳mma Doradus pulsators. One more candidate is a variable star with longer periods of pulsations which are intrinsic to ≳mma Doradus-type pulsators.