Short period variable stars in young open cluster Stock 8

Abstract

We present time series photometry in the field of Stock 8 and identified 130 short period variable stars. Twenty eight main-sequence and 23 pre-main-sequence variables are found to be part of cluster Stock 8. The main-sequence variables are classified as slow pulsator of the B type, $\beta$ Cep and $\delta$ Scuti stars. Fourteen main-sequence stars could be new class variables as discussed by Mowlavi et al. (2013) and Lata et al. (2014). The age and mass of pre-main-sequence variables are found to be $\lesssim$ 5 Myr and in the mass range of 0.5 to 2.8 M${}_{\odot }$, respectively. These pre-main-sequence stars could be T-Tauri variables. We have found 5 and 2 of 23 PMS variables as classical T-Tauri stars and Herbig Ae/Be stars, respectively, whereas 16 PMS stars are classified as weak-line T Tauri stars.

17 pages, 14 figures, Accepted for the publication in Astronomical Journal

References in corpus (12)

• Results of the ROTOR-program. I. The long-term photometric variability of classical T Tauri stars
• Results of the ROTOR-program. II. The long-term photometric variability of weak-line T Tauri stars
• A Correlation Between Pre-Main Sequence Stellar Rotation Rates and IRAC Excesses in Orion
• Young Stellar Object Variability (YSOVAR): Long Timescale Variations in the Mid-Infrared
• CSI 2264: Investigating rotation and its connection with disk accretion in the young open cluster NGC 2264
• ULTRASPEC: a high-speed imaging photometer on the 2.4-m Thai National Telescope
• Testing the Disk Regulation Paradigm with Spitzer Observations. I. Rotation Periods of Pre-main Sequence Stars in the IC 348 Cluster
• Stellar contents and star formation in the young open cluster Stock 8
• The low-mass population in the young cluster Stock 8: Stellar properties and Initial Mass Function
• The population in the background of open clusters: Tracer of the Norma-Cygnus arm
• Main-sequence variable stars in young open cluster NGC 1893
• First Lunar Occultation Results from the 2.4 m Thai National Telescope equipped with ULTRASPEC

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