OGLE LMC103.5 47327 , the SIMBAD biblio

2019MNRAS.489.3285N - Mon. Not. R. Astron. Soc., 489, 3285-3293 (2019/November-1)

Candidates for non-pulsating stars located in the Cepheid instability strip in the Large Magellanic Cloud based on Stromgren photometry.

NARLOCH W., PIETRZYNSKI G., KOLACZKOWSKI Z., SMOLEC R., GORSKI M., KUBIAK M., UDALSKI A., SOSZYNSKI I., GRACZYK D., GIEREN W., KARCZMAREK P., ZGIRSKI B., WIELGORSKI P., SUCHOMSKA K., PILECKI B., TAORMINA M. and KALUSZYNSKI M.

Abstract (from CDS):

We present candidates for non-pulsating stars lying in the classical Cepheid instability strip based on the Optical Gravitational Lensing Experiment (OGLE) photometric maps combined with Stromgren photometry obtained with the 4.1-m Southern Astrophysical Research (SOAR) telescope, and Gaia Data Release 2 data in four fields in the Large Magellanic Cloud. We selected 19 candidates in total. After analysis of their light curves from OGLE surveys we found that all these stars appear to be photometrically stable at the level of a few mmag. Our results show that non-pulsating stars might constitute to about 21-30 per cent of the whole sample of giant stars located in the classical instability strip. Furthermore, we identified potential candidates for classical Cepheids with hot companions based on their Stromgren colours.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: variables: Cepheids - galaxies: individual: Large Magellanic Cloud

Errata: erratum vol. 491, p. 2770 (2020)

Status at CDS:  

Simbad objects: 67

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2020.04.02-11:01:24

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