The Optical Gravitational Lensing Experiment. Cepheids in the Magellanic Clouds. II. Single-Mode Second Overtone Cepheids in the Small Magellanic Cloud

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dc.creatorUdalski, A.
dc.creatorSoszynski, I.
dc.creatorSzymanski, M.
dc.creatorKubiak, M.
dc.creatorPietrzynski, G.
dc.creatorWozniak, P.
dc.creatorZebrun, K.
dc.date1999-03-25
dc.date1999-04-06
dc.date.accessioned2026-07-07T02:30:59Z
dc.date.available2026-07-07T02:30:59Z
dc.descriptionWe present a sample of 13 candidates for single-mode second overtone Cepheids discovered in the 2.4 square degree area of the SMC bar during the OGLE microlensing search. All candidates passed four photometric tests: analysis of Fourier parameters of the light curve, R_21 and ϕ_21, position in the period-luminosity diagram and location in the color-magnitude diagram. The stars form a very homogeneous group of objects with very similar light curves of low amplitude and almost sinusoidal shape. Their color indices B-V and V-I are also very similar and the objects determine the observational blue edge of the instability strip of the first overtone Cepheids. This is the first firm sample of the single-mode second overtone Cepheids detected so far.
dc.description13 pages, one JPG figure, Latex+psfig. Acta Astronomica, 49, 45. Full resolution Figure 1 is available from the OGLE archive ftp://sirius.astrouw.edu.pl/ogle/ogle2/var_stars/smc/cep/socep Revised version. Minor changes
dc.identifierhttps://arxiv.org/abs/astro-ph/9903393
dc.identifierhttp://arxiv.org/abs/astro-ph/9903393
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14011
dc.subjectAstrophysics
dc.titleThe Optical Gravitational Lensing Experiment. Cepheids in the Magellanic Clouds. II. Single-Mode Second Overtone Cepheids in the Small Magellanic Cloud
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