The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. III. RR Lyrae Stars in the Large Magellanic Cloud

• Autorzy: Soszyński I. , Udalski A. , Szymański M. K. , Kubiak M. , Pietrzyński G. , Wyrzykowski Ł. , Szewczyk O. , Ulaczyk K. , Poleski R.
• Języki publikacji: EN

Abstrakty

EN

The third part of the OGLE-III Catalog of Variable Stars comprises 24 906 RR Lyr stars in the Large Magellanic Cloud (LMC). This sample consists of 17 693 fundamental-mode (RRab), 4958 first-overtone (RRc), 986 double-mode (RRd) and 1269 suspected second-overtone (RRe) pulsators. 66 objects are foreground Galactic RR Lyr stars. The catalog data include basic photometric and astrometric properties of these RR Lyr stars, multi-epoch VI photometry and finding charts. We detected one new RR Lyr star with additional eclipsing variations. The spatial distribution of RR Lyr stars in the LMC is distinctly non-spherical and it is elongated in the same direction as the LMC bar. The basic statistical features of RR Lyr stars in the LMC are provided. The apparent V-band magnitudes for RRab stars have the modal value at 19.36 mag, and for overtone RR Lyr stars it is about 19.32 mag. The mean periods for RRab, RRc and RRe stars are 0.576, 0.337 and 0.270 days, respectively.

Słowa kluczowe

EN

Stars: variables: RR Lyrae; Stars: oscillations; Stars: Population II; Magellanic Clouds

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2009
• Tom: Vol. 59, No. 1
• Strony: 1--18
• Opis fizyczny: Bibliogr. 44 poz., rys., tab., wykr.

Twórcy

autor

Soszyński I.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Udalski A.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Szymański M. K.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Kubiak M.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Pietrzyński G.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Universidad de Concepción, Departamento de Fisica, Casilla 160--C, Concepción, Chile

autor

Wyrzykowski Ł.

• Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

autor

Szewczyk O.

• Universidad de Concepción, Departamento de Fisica, Casilla 160--C, Concepción, Chile

autor

Ulaczyk K.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Poleski R.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

Bibliografia

• Alard, C., and Lupton, R.H. 1998, ApJ, 503, 325.
• Alard, C. 2000, A&AS, 144, 363.
• Alcock, C., et al. (MACHO team) 1996, AJ, 111, 1146.
• Alcock, C., et al. (MACHO team) 1997a, ApJ, 482, 89.
• Alcock, C., et al. (MACHO team) 1997b, ApJ, 490, L59.
• Alcock, C., et al. (MACHO team) 2000, ApJ, 542, 257.
• Alexander, J.B. 1960, MNRAS, 121, 97.
• Artyukhina, N.M. et al. 1995, “General Catalogue of Variable Stars”, 4rd ed., vol.V. Extragalactic Variable Stars, “Kosmosinform”, Moscow.
• Baade, W. 1952, Trans. I.A.U., 8, 397.
• Bica, E., Bonatto, C., Dutra, C.M., and Santos, J.F.C. 2008, MNRAS, 389, 678.
• Bono, G., Caputo, F., Cassisi, S., Incerpi, R., and Marconi, M. 1997, ApJ, 483, 811.
• Borissova, J., Minniti, D., Rejkuba, M., Alves, D., Cook, K.H., and Freeman, K.C. 2004, A&A, 423, 97.
• Borissova, J., Minniti, D., Rejkuba, M., and Alves, D. 2006, A&A, 460, 459.
• Clementini, G., Gratton, R., Bragaglia, A., Carretta, E., Di Fabrizio, L., and Maio, M. 2003, AJ, 125, 1309.
• Di Fabrizio, L., Clementini, G., Maio, M., Bragaglia, A., Carretta, E., Gratton, R., Montegriffo, P., and Zoccali, M. 2005, A&A, 430, 603.
• Dziembowski, W.A., and Mizerski, T. 2004, Acta Astron., 54, 363.
• Graham, J.A. 1985, PASP, 97, 676.
• Graham, J.A., and Ruiz, M.T. 1974, AJ, 79, 363.
• Hazen, M.L., and Nemec, J.M. 1992, AJ, 104, 111.
• Jurcsik, J., and Kovács, G. 1996, A&A, 312, 111.
• Kapteyn, J.C. 1890, Astron. Nachr., 125, 165.
• Morgan, S.M., Wahl, J.N., and Wieckhorst, R.M. 2007, MNRAS, 374, 1421.
• Nemec, J.M., Hesser, J.E., and Ugarte, P.P. 1985, ApJS, 57, 287.
• Olech, A., Kaluzny, J., Thompson, I.B., Pych, W., Krzeminski, W., and Shwarzenberg-Czerny, A. 1999, AJ, 118, 442.
• Olech, A., and Moskalik, P. 2009, A&A, 494, L17.
• Pickering, E.C., and Bailey, S.I. 1895, ApJ, 2, 321.
• Pojma´nski, G. 1997, Acta Astron., 47, 467.
• Poleski, R. 2008, Acta Astron., 58, 313.
• Popielski, B.L., Dziembowski, W.A., and Cassisi, S. 2000, Acta Astron., 50, 491.
• Prša, A., Guinan, E.F., Devinney, E.J., and Engle, S.G. 2008, A&A, 489, 1209.
• Schwarzenberg-Czerny, A. 1996, ApJ, 460, L107.
• Simon, N.R., and Lee, A.S. 1981, ApJ, 248, 291.
• Smith, H.A. 1995, “RR Lyrae Stars” (Cambridge: Cambridge University Press).
• Soszyński, I., Udalski, A., Szymański, M., Kubiak, M., Pietrzyński, G., Woźniak, P., ˙Zebruń, K.,Szewczyk, O., and Wyrzykowski, Ł. 2003, Acta Astron., 53, 93.
• Soszyński, I., Poleski, R., Udalski, A., Kubiak, M., Szymański, M.K., Pietrzyński, G.,Wyrzykowski, Ł., Szewczyk, O., and Ulaczyk, K. 2008a, Acta Astron., 58, 163 (Paper I).
• Soszyński, I., Udalski, A., Szymański, M.K., Kubiak, M., Pietrzyński, G., Wyrzykowski, Ł., Szewczyk, O., Ulaczyk, K., and Poleski, R. 2008b, Acta Astron., 58, 293 (Paper II).
• Subramaniam, A. 2006, A&A, 449, 101.
• Thackeray, A.D., and Wesselink, A.J. 1953, Nature, 171, 693.
• Udalski, A. 2003, Acta Astron., 53, 291.
• Udalski, A., Szymański, M.K., Soszyński, I., and Poleski. R. 2008, Acta Astron., 58, 69.
• Walker, A.R. 1992, AJ, 104, 1395.
• Wesselink, A.J. 1971, MNRAS, 152, 159.
• Woźniak, P.R. 2000, Acta Astron., 50, 421.
• Wyrzykowski, Ł. et al. 2009, MNRAS, submitted.