One New Variable Candidate and Six Non-variable Stars at the ZZ Ceti Instability Strip

• Autorzy: Bognár Zs. , Kalup Cs. , Sódor Á.

Identyfikatory

DOI

10.32023/0001-5237/69.1.4

• Języki publikacji: EN

Abstrakty

EN

We present our results on the continuation of our survey searching for new ZZ Ceti stars, inspired by the recently launched TESS space mission. The seven targets were bright DA-type white dwarfs located close to the empirical ZZ Ceti instability strip. We successfully identified one new pulsator candidate, namely PM J22299+3024, derived detection limits for possible pulsations of four objects for the first time, and determined new detection limits for two targets.

Słowa kluczowe

EN

stars: oscillations white dwarfs; techniques: photometric

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2019
• Tom: Vol. 69, No. 1
• Strony: 55--62
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Bognár Zs.

• Konkoly Observatory, MTA Research Centre for Astronomy and Earth Sciences, Konkoly Thege Miklós út 15-17, H-1121 Budapest
• MTA CSFK Lendület Near-Field Cosmology Research Group

autor

Kalup Cs.

• Konkoly Observatory, MTA Research Centre for Astronomy and Earth Sciences, Konkoly Thege Miklós út 15-17, H-1121 Budapest
• Eötvös University, Department of Astronomy, Pf. 32, 1518, Budapest, Hungary

autor

Sódor Á.

• Konkoly Observatory, MTA Research Centre for Astronomy and Earth Sciences, Konkoly Thege Miklós út 15-17, H-1121 Budapest
• MTA CSFK Lendület Near-Field Cosmology Research Group

Bibliografia

• Bell, K.J., Hermes, J.J., Montgomery, M.H., Winget, D.E., Gentile Fusillo, N.P., Raddi, R., and Gänsicke, B.T. 2017, ASP Conference Series, 509, 303.
• Bognár, Zs., Kalup, Cs., Sódor, Á., Charpinet, S., and Hermes, J.J. 2018, MNRAS, 478, 2676.
• Bognár, Zs., and Sódor, Á. 2016, IBVS, 6184.
• Dufour, P., Blouin, S., Coutu, S., Fortin-Archambault, M., Thibeault, C., Bergeron, P., and Fontaine, G. 2017, ASP Conference Series, 509, 3.
• Eastman, J., Siverd, R., amd Gaudi, B.S. 2010, PASP, 122, 935.
• Gianninas, A., Bergeron, P., and Fontaine, G. 2006, AJ, 132, 831.
• Gianninas, A., Bergeron, P., and Ruiz, M.T. 2011, ApJ, 743, 138.
• Hermes, J.J., et al. 2017, ApJS, 232, 23.
• Kawka, A., and Vennes, S. 2006, ApJ, 643, 402.
• Kepler, S.O., Giovannini, O., Kanaan, A., Wood, M.A. and Claver, C.F. 1995, Baltic Astronomy, 4, 157.
• Limoges, M.-M., Bergeron, P., and Lépine, S. 2015, ApJS, 219, 19.
• Ricker, G.R., et al. 2015, Journal of Astronomical Telescopes, Instruments, and Systems, 1, 014003.
• Sódor, Á. 2012, Konkoly Observatory Occasional Technical Notes, 15, 1.
• Tremblay, P.-E., Ludwig, H.-G., Steffen, M., and Freytag, B. 2013, A&A, 559, A104.
• Tremblay, P.-E., Gianninas, A., Kilic, M., Ludwig, H.-G., Steffen, M., Freytag, B., and Hermes, J.J. 2015, ApJ, 809, 148.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)