2019AJ....158...68L

Query : 2019AJ....158...68L

2019AJ....158...68L - Astron. J., 158, 68-68 (2019/August-0)

Short-period variable stars in young open cluster Stock 8.

LATA S., PANDEY A.K., YADAV R.K., RICHICHI A., IRAWATI P., PANWAR N., DHILLON V.S. and MARSH T.R.

Abstract (from CDS):

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 pulsators of the B-type, β Cep, and δ Scuti stars. Fourteen main-sequence stars could be new class variables as discussed by Mowlavi et al. and Lata et al. The age and mass of pre-main-sequence variables are found to be <=5 Myr and in the mass range of 0.5-2.8 M☉, respectively. These pre-main-sequence stars could be T-Tauri variables. We have found 5 and 2 of 23 pre-main-sequence variables as classical T-Tauri stars and Herbig Ae/Be stars, respectively, whereas 16 pre-main-sequence stars are classified as weak-line T-Tauri stars.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): open clusters and associations: general - stars: variables: T-Tauri, Herbig Ae/Be

VizieR on-line data: <Available at CDS (J/AJ/158/68): table3.dat table2.dat table4.dat table5.dat>

Nomenclature: Fig. 1, Table 3: [LPY2019] VNNN (Nos V1-V130).

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
2 NGC 1893 OpC 05 22 52.8 +33 26 32           ~ 270 0
3 Cl Stock 8 OpC 05 27 54.1 +34 28 41           ~ 93 0
4 IC 417 HII 05 28 03 +34 24.7           ~ 59 0
5 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
6 NGC 2264 OpC 06 40 53.7 +09 52 32           ~ 1876 0
7 NGC 3766 OpC 11 36 13.5 -61 36 42   5.66 5.3     ~ 222 0
8 NAME Norma-Cygnus Arm reg ~ ~           ~ 79 0

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