The OGLE Collection of Variable Stars. Classical, Type II, and Anomalous Cepheids toward the Galactic Center

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

Abstrakty

EN

We present a collection of classical, typeII, and anomalous Cepheids detected in the OGLE fields toward the Galactic center. The sample contains 87 classical Cepheids pulsating in one, two or three radial modes, 924 type II Cepheids divided into BL Her, W Vir, peculiar W Vir, and RV Tau stars, and 20 anomalous Cepheids - first such objects found in the Galactic bulge. Additionally, we upgrade the OGLE Collection of RR Lyr stars in the Galactic bulge by adding 828 newly identified variables. For all Cepheids and RRLyr stars, we publish time-series VI photometry obtained during the OGLE-IV project, from 2010 through 2017. We discuss basic properties of our classical pulsators: their spatial distribution, light curve morphology, period-luminosity relations, and position in the Petersen diagram. We present the most interesting individual objects in our collection: a typeII Cepheid with additional eclipsing modulation, WVir stars with the period doubling effect and the RVb phenomenon, a mode-switching RR Lyr star, and a triple-mode anomalous RRd star.

Słowa kluczowe

EN

stars: variables: Cepheids; stars: variables: RR Lyrae; stars: oscillations; galaxy: center; catalogs

• Czasopismo: Acta Astronomica
• Rocznik: 2017
• Tom: Vol. 67, No. 4
• Strony: 297--316
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Soszyński, I.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland,

autor

Udalski, A.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Szymański, M. K.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Wyrzykowski, Ł.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Ulaczyk, K.

• Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV47AL, UK

autor

Poleski, R.

• Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH43210, USA

autor

Pietrukowicz, P.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Kozłowski, S.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Skowron, D. M.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Skowron, J.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Mróz, P.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Pawlak, M.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Rybicki, K.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

autor

Jacyszyn-Dobrzeniecka, A.

• Warsaw University Observatory, Al. Ujazdowskie4, 00-478 Warszawa, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

Identyfikatory

DOI

10.32023/0001-5237/67.4.1