Gaia and Variable Stars

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

Abstrakty

EN

We present a comparison of the Gaia DR1 samples of pulsating variable stars - Cepheids and RR Lyr type - with the OGLE Collection of Variable Stars aiming at the characterization of the Gaia mission performance in the stellar variability domain. Out of 575 Cepheids and 2322 RR Lyr candidates from the Gaia DR1 samples located in the OGLE footprint in the sky, 559 Cepheids and 2302 RR Lyr stars are genuine pulsators of these types. The number of misclassified stars is low indicating reliable performance of the Gaia data pipeline. The completeness of the Gaia DR1 samples of Cepheids and RR Lyr stars is at the level of 60-75% as compared to the OGLE Collection dataset. This level of completeness is moderate and may limit the applicability of the Gaia data in many projects.

Słowa kluczowe

EN

stars: variables: Cepheids; stars: variables: RR Lyr; Magellanic Clouds

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2016
• Tom: Vol. 66, No. 4
• Strony: 433--453
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Udalski A.

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

autor

Soszyński I.

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

autor

Skowron D. M.

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

autor

Skowron J.

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

autor

Pietrukowicz P.

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

autor

Mróz P.

• 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 3210, USA

autor

Szymański M. K.

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

autor

Kozłowski S.

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

autor

Wyrzykowski Ł.

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

autor

Ulaczyk K.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK

autor

Pawlak M.

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

Bibliografia

• Eyer, L., et al. 2012, Ap&SS, 341, 207.
• Gaia Collaboration (Prusti, T., et al. ) 2016a, A&A, 595, A1.
• Gaia Collaboration (Brown A.G.A., et al. ) 2016b, A&A, 595, A2.
• Clementini, G., et al. 2016, A&A, 595, A133.
• Pietrukowicz, P., et al. 2015, ApJ, 813, 40.
• Soszyński, I., et al. 2012, Acta Astron., 62, 219.
• Soszyński, I., et al. 2013, Acta Astron., 63, 21.
• Soszyński, I., et al. 2014, Acta Astron., 64, 177.
• Soszyński, I., et al. 2015a, Acta Astron., 65, 233.
• Soszyński, I., et al. 2015b, Acta Astron., 65, 297.
• Soszyński, I., et al. 2016, Acta Astron., 66, 131.
• Udalski, A., Szymański, M.K., and Szymński, G. 2015, Acta Astron., 65, 1.