Multi-Mode and Non-Standard Classical Cepheids in the Magellanic System

• Autorzy: Soszyński I. , Udalski A. , Szymański M. K. , Poleski R. , Pietrukowicz P. , Kozłowski S. , Mróz P. , Wyrzykowski Ł. , Skowron D. , Skowron J. , Pietrzyński G. , Ulaczyk K. , Pawlak M.
• Języki publikacji: EN

Abstrakty

EN

We present a sample of the most interesting classical Cepheids selected from the OGLE collection of classical Cepheids in the Magellanic System. The main selection criterion for this sample was the presence of non-standard, unique pulsational properties. The sample contains the first known double-mode Cepheid pulsating in the second- and third-overtone modes and a large number of objects with non-radial modes excited. We also found Cepheids revealing Blazhko-like light curve modulation, objects ceasing pulsations or showing atypical shapes of their light curves. Additionally, the status of several triple mode classical Cepheids is updated based on OGLE-IV photometry extending the time baseline to 15 years.

Słowa kluczowe

EN

Cepheids; stars: oscillations; Magellanic Clouds

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2015
• Tom: Vol. 65, No. 4
• Strony: 329--339
• Opis fizyczny: Bibliogr. 14 poz., 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

Poleski R.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA

autor

Pietrukowicz P.

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

autor

Kozłowski S.

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

autor

Mróz P.

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

autor

Wyrzykowski Ł.

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

autor

Skowron D.

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

autor

Skowron J.

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

autor

Pietrzyński G.

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

autor

Ulaczyk K.

• Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL,

autor

Pawlak M.

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

Bibliografia

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• Moskalik, P., Kołaczkowski, Z., and Mizerski, T. 2004, in Variable Stars in the Local Group, ed. D.W. Kurtz, and K. Pollard, ASP Conf. Ser., 310, 498.
• Moskalik, P., and Kołaczkowski, Z. 2008, Comm. in Asteroseismology, 157, 343.
• Moskalik, P., and Kołaczkowski, Z. 2009, MNRAS, 394, 1649.
• Pietrukowicz, P., et al. 2015, ApJ, 813, L40.
• Soszyński, I., et al. 2008a, Acta Astron., 58, 153.
• Soszyński, I., et al. 2008b, Acta Astron., 58, 163.
• Soszyński, I., et al. 2010, Acta Astron., 60, 17.
• Soszyński, I., et al. 2015, Acta Astron., 65, 297.
• Udalski, A., Soszyński, I., Szymański, M., Kubiak, M., Pietrzyński, G., Woźniak, P., and Żebruń, K. 1999, Acta Astron., 49, 45.
• Udalski, A., Szymański, M.K., and Szymański, G. 2015, Acta Astron., 65, 1.
• Ulaczyk, K., et al. 2013, Acta Astron., 63, 159.