First Kepler results on compact pulsators - VI. Targets in the final half of the survey phase

Ostensen RH, Silvotti R, Charpinet S, Oreiro R, Bloemen S, Baran AS, Reed MD, Kawaler SD, Telting JH, Green EM, O'Toole SJ, Aerts C, Gaensicke BT, Marsh TR, Breedt E, Heber U, Koester D, Quint AC, Kurtz DW, Rodriguez-Lopez C, Vuckovic M, Ottosen TA, Frimann S, Somero A, Wilson PA, Thygesen AO, Lindberg JE, Kjeldsen H, Christensen-Dalsgaard J, Allen C, Mccauliff S, Middour CK (2011)

Publication Type: Journal article

Publication year: 2011

Journal

Monthly Notices of the Royal Astronomical Society Oxford University Press

Book Volume: 414

Pages Range: 2860-2870

Journal Issue: 4

DOI: 10.1111/j.1365-2966.2011.18405.x

Abstract

We present results from the final 6 months of a survey to search for pulsations in white dwarfs (WDs) and hot subdwarf stars with the Kepler spacecraft. Spectroscopic observations are used to separate the objects into accurate classes, and we explore the physical parameters of the subdwarf B (sdB) stars and white dwarfs in the sample. From the Kepler photometry and our spectroscopic data, we find that the sample contains five new pulsators of the V1093Her type, one AMCVn type cataclysmic variable and a number of other binary systems. This completes the survey for compact pulsators with Kepler. No V361Hya type of short-period pulsating sdB stars were found in this half, leaving us with a total of one single multiperiodic V361Hya and 13 V1093Her pulsators for the full survey. Except for the sdB pulsators, no other clearly pulsating hot subdwarfs or white dwarfs were found, although a few low-amplitude candidates still remain. The most interesting targets discovered in this survey will be observed throughout the remainder of the Kepler mission, providing the most long-term photometric data sets ever made on such compact, evolved stars. Asteroseismic investigations of these data sets will be invaluable in revealing the interior structure of these stars and will boost our understanding of their evolutionary history. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.

Authors with CRIS profile

Ulrich Heber Naturwissenschaftliche Fakultät

Involved external institutions

Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven BE Belgium (BE) Osservatorio Astrofisico di Torino IT Italy (IT) Université Fédérale de Toulouse Midi-Pyrénées FR France (FR) Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie PL Poland (PL) Missouri State University US United States (USA) (US) Iowa State University of Science and Technology (ISU) US United States (USA) (US) Roque de los Muchachos Observatory / Observatorio del Roque de los Muchachos (ORM) ES Spain (ES) University of Arizona US United States (USA) (US) Australian Astronomical Observatory AU Australia (AU) University of Warwick GB United Kingdom (GB) Christian-Albrechts-Universität zu Kiel DE Germany (DE) University of Central Lancashire (UCLan) GB United Kingdom (GB) University of Vigo / Universidade de Vigo ES Spain (ES) Aarhus University DK Denmark (DK) National Aeronautics and Space Administration (NASA) US United States (USA) (US)

How to cite

APA:

Ostensen, R.H., Silvotti, R., Charpinet, S., Oreiro, R., Bloemen, S., Baran, A.S.,... Middour, C.K. (2011). First Kepler results on compact pulsators - VI. Targets in the final half of the survey phase. Monthly Notices of the Royal Astronomical Society, 414(4), 2860-2870. https://doi.org/10.1111/j.1365-2966.2011.18405.x

MLA:

Ostensen, R. H., et al. "First Kepler results on compact pulsators - VI. Targets in the final half of the survey phase." Monthly Notices of the Royal Astronomical Society 414.4 (2011): 2860-2870.

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