Ground-Based Observations of the ZZ Ceti Star HS~1625+1231

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

Identyfikatory

DOI

10.32023/0001-5237/71.4.2

• Języki publikacji: PL

Abstrakty

EN

We present the results of our detailed light curve analysis of the ZZ Ceti star HS 1625+1231. We collected photometric time series data at Konkoly Observatory on 14 nights, and performed Fourier analysis of these data sets. We detected 11 significant frequencies, where six of them are found to be independent pulsation modes in the 514-881 s period range. By utilizing these frequencies, we performed preliminary asteroseismic investigations to give constraints on the main physical parameters, and to derive seismic distances for the star. Finally, we compared the astrometric distance provided by the Gaia EDR3 data with those seismic distances. Our selected model, considering both the spectroscopic measurements and the distance value provided by Gaia, has T_eff=11 000 K and M_*=0.60 M_☉.

Słowa kluczowe

EN

techniques: photometric; stars: individual: HS 1625+1231; stars: interiors; stars: oscillations; white dwarfs

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2021
• Tom: Vol. 71, No. 4
• Strony: 281--295
• Opis fizyczny: Bibliogr. 49 poz., il., tab, wykr.

Twórcy

autor

Kalup Cs.

• Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, ELKH, H-1121 Konkoly Thege Miklós úut 15-17, Budapest, Hungary
• ELTE Eötvös Loránd University, Department of Astronomy, Pázmány Péeter sétány 1/A, Budapest 1117, Hungary
• MTA CSFK Lendület Near-Field Cosmology Research Group

autor

Bognár Zs.

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

autor

Sódor Á.

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

Bibliografia

• Althaus, L.G., Córsico, A.H., Isern, J., and García-Berro, E. 2010, Astron. and Astrophys. Rev,, 18, 471.
• Bailer-Jones, C.A.L., Rybizki, J., Fouesneau, M., et al. 2021, AJ, 161, 147.
• Bell, K.J., Hermes, J.J., Montgomery, M.H., et al. 2017, ASPC, 509, 303.
• Bell, K.J., Córsico, A.H., Bischoff-Kim, A., et al. 2019, A&A, 632, A42.
• Bischoff-Kim, A., and Montgomery, M.H. 2018, AJ, 155, 187.
• Bognár, Zs., Paparó, M., Bradley, P.A., and Bischoff-Kim, A. 2009, MNRAS, 399, 1954.
• Bognár, Zs., Paparó, M., Córsico, A.H., et al. 2014, A&A, 570, A116.
• Bognár, Zs., Paparó, M., Molnár, L., et al. 2016, MNRAS, 461, 4059.
• Bognár, Zs., Paparó, M., Sódor, Á., et al. 2019, MNRAS, 482, 4018.
• Bognár, Zs., Kawaler, S.D., Bell, K.J., et al. 2020, A&A, 638, A82.
• Bognár, Zs., Kalup, Cs., and Sódor, Á. 2021, A&A, 651, A14.
• Bohm, K.H., and Cassinelli, J. 1971, A&A, 12, 21.
• Bradley, P.A. 1996, ApJ, 468, 350.
• Brickhill, A.J. 1991, MNRAS, 251, 673.
• Castanheira, B.G., and Kepler, S.O. 2008, MNRAS, 385, 430.
• Castanheira, B.G., and Kepler, S.O. 2009, MNRAS, 396, 1709.
• Córsico, A.H., Althaus, L.G., Miller B., Marcelo M., and Kepler, S.O. 2019, Astron. and Astrophys. Rev,, 27, 7.
• Córsico, A.H. 2020, Frontiers in Astronomy and Space Sciences, 7, 47.
• Dolez, N., and Vauclair, G. 1981, A&A, 102, 375.
• Eastman, J., Siverd, R., and Gaudi, B.S. 2010, PASP, 122, 935.
• Fontaine, G., and Brassard, P. 2008, PASP, 120, 1043.
• Gaia Collaboration, et al. 2016, A&A, 595, A1.
• Gaia Collaboration, et al. 2021, A&A, 649, A1.
• Gentile Fusillo, N.P., Tremblay, P.-E., Gänsicke, Boris T., et al. 2019, MNRAS, 482, 4570.
• Gianninas, A., Bergeron, P., and Ruiz, M.T. 2011, ApJ, 743, 138.
• Goldreich, P., and Wu, Y. 1999, ApJ, 511, 904.
• Hermes, J.J., Gänsicke, B.T., Kawaler, S.D., et al. 2017, ApJS, 232, 23.
• Kepler, S.O., Pelisoli, I., Koester, D., et al. 2015, MNRAS, 446, 4078.
• Kim, A. 2007, PhD Thesis, The University of Texas at Austin.
• Lenz, P., and Breger, M. 2005, CoAst, 146, 53.
• Montgomery, M.H., Provencal, J.L., Kanaan, A., et al. 2010, ApJ, 716, 84.
• Paparó, M., Bognár, Zs., Plachy, E., et al. 2013, MNRAS, 432, 598.
• Paxton, B., Bildsten, L., Dotter, A., et al. 2011, ApJS, 192, 3.
• Paxton, B., Cantiello, M., Arras, P., et al. 2013, ApJS, 208, 4.
• Paxton, B., Marchant, P., Schwab, J., et al. 2015, ApJS, 220, 15.
• Paxton, B., Schwab, J., Bauer, E.B., et al. 2018, ApJS, 234, 34.
• Paxton, B., Smolec, R., Schwab, J., et al. 2019, ApJS, 243, 10.
• Ricker, G.R., Winn, J.N., Vanderspek, R., et al. 2015, Journal of Astronomical Telescopes, Instruments, and Systems, 1, 014003.
• Romero, A.D., Córsico, A.H., Althaus, L.G., et al. 2012, MNRAS, 420, 1462.
• 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., Ludwig, H.-G., Freytag, B., et al. 2015, ApJ, 799, 142.
• Unno, W., Osaki, Y., Ando, H., Saio, H., and Shibahashi, H. 1989, “Nonradial oscillations of stars”, Tokyo, University of Tokyo Press.
• Voss, B., Koester, D., Ostensen, R., et al. 2006, A&A, 450, 1061.
• Winget, D.E., van Horn, H.M., Tassoul, M., et al. 1982, ApJ, 252, L65.
• Winget, D.E., and Kepler, S.O. 2008, Ann. Rev. Astron. and Astrophys., 46, 157.
• Zacharias, N., Finch, C.T., Girard, T.M., et al. 2012, VizieR Online Data Catalog, I/322A.
• Zima, W. 2008, Communications in Asteroseismology, 155, 17.
• Zong, W., Charpinet, S., Vauclair, G., Giammichele, N., and Van Grootel, V. 2016, A&A, 585, A22.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)