SIMBAD references

2014MNRAS.442..273L - Mon. Not. R. Astron. Soc., 442, 273-284 (2014/July-3)

Main-sequence variable stars in young open cluster NGC 1893.

LATA S., YADAV R.K., PANDEY A.K., RICHICHI A., ESWARAIAH C., KUMAR B., KAPPELMANN N. and SHARMA S.

Abstract (from CDS):

In this paper, we present time series photometry of 104 variable stars in the cluster region NGC 1893. The association of the present variable candidates to the cluster NGC 1893 has been determined by using (U - B)/(B - V) and (J - H)/(H - K) two colour diagrams, and V/(V - I) colour-magnitude diagram. 45 stars are found to be main-sequence variables and these could be B-type variable stars associated with the cluster. We classified these objects as β Cep, slowly pulsating B stars and new class variables as discussed by Mowlavi et al. These variable candidates show ∼ 0.005 to ∼ 0.02mag brightness variations with periods of <1.0d. 17 new class variables are located in the H - R diagram between the slowly pulsating B stars and δ Scuti variables. Pulsation could be one of the causes for periodic brightness variations in these stars. The X-ray emission of present main-sequence variables associated with the cluster lies in the saturated region of X-ray luminosity versus period diagram and follows the general trend by Pizzolato et al.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): stars: variables: general - open clusters and associations: individual:

VizieR on-line data: <Available at CDS (J/MNRAS/442/273): table2.dat>

Nomenclature: Table 2: [LPC2012] VNNN (Nos V54-V157) added.

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

Simbad objects: 17

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2020.10.24-12:07:16

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