Insights into internal effects of common-envelope evolution using the extended Kepler mission

J. J. Hermes, B. T. Gänsicke, Agnes Kim, Steven D. Kawaler, J. T. Fuchs, B. H. Dunlap, J. C. Clemens, M. H. Montgomery, P. Chote, Thomas Barclay, T. R. Marsh, A. Gianninas, D. Koester, D. E. Winget, D. J. Armstrong, A. Rebassa-Mansergas, M. R. Schreiber

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We present an analysis of the binary and physical parameters of a unique pulsating white dwarf with a main-sequence companion, SDSS J1136+0409, observed for more than 77 d during the first pointing of the extended Kepler mission: K2 Campaign 1. Using new groundbased spectroscopy, we show that this post-common-envelope binary has an orbital period of 6.89760103(60) h, which is also seen in the photometry as a result of Doppler beaming and ellipsoidal variations of the secondary.We spectroscopically refine the temperature of the white dwarf to 12 330 ± 260 K and its mass to 0.601 ± 0.036 M⊙. We detect seven independent pulsation modes in the K2 light curve. A preliminary asteroseismic solution is in reasonable agreement with the spectroscopic atmospheric parameters. Three of the pulsation modes are clearly rotationally split multiplets, which we use to demonstrate that the white dwarf is not synchronously rotating with the orbital period but has a rotation period of 2.49 ± 0.53 h. This is faster than any known isolated white dwarf, but slower than almost all white dwarfs measured in non-magnetic cataclysmic variables, the likely future state of this binary.

Original languageEnglish (US)
Pages (from-to)1701-1712
Number of pages12
JournalMonthly Notices of the Royal Astronomical Society
Volume451
Issue number2
DOIs
StatePublished - May 1 2015

Fingerprint

Kepler mission
envelopes
orbitals
cataclysmic variables
light curve
photometry
fine structure
spectroscopy
temperature
parameter
effect
analysis

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Hermes, J. J., Gänsicke, B. T., Kim, A., Kawaler, S. D., Fuchs, J. T., Dunlap, B. H., ... Schreiber, M. R. (2015). Insights into internal effects of common-envelope evolution using the extended Kepler mission. Monthly Notices of the Royal Astronomical Society, 451(2), 1701-1712. https://doi.org/10.1093/mnras/stv1053
Hermes, J. J. ; Gänsicke, B. T. ; Kim, Agnes ; Kawaler, Steven D. ; Fuchs, J. T. ; Dunlap, B. H. ; Clemens, J. C. ; Montgomery, M. H. ; Chote, P. ; Barclay, Thomas ; Marsh, T. R. ; Gianninas, A. ; Koester, D. ; Winget, D. E. ; Armstrong, D. J. ; Rebassa-Mansergas, A. ; Schreiber, M. R. / Insights into internal effects of common-envelope evolution using the extended Kepler mission. In: Monthly Notices of the Royal Astronomical Society. 2015 ; Vol. 451, No. 2. pp. 1701-1712.
@article{13f9ca756d66476c90931d142abab667,
title = "Insights into internal effects of common-envelope evolution using the extended Kepler mission",
abstract = "We present an analysis of the binary and physical parameters of a unique pulsating white dwarf with a main-sequence companion, SDSS J1136+0409, observed for more than 77 d during the first pointing of the extended Kepler mission: K2 Campaign 1. Using new groundbased spectroscopy, we show that this post-common-envelope binary has an orbital period of 6.89760103(60) h, which is also seen in the photometry as a result of Doppler beaming and ellipsoidal variations of the secondary.We spectroscopically refine the temperature of the white dwarf to 12 330 ± 260 K and its mass to 0.601 ± 0.036 M⊙. We detect seven independent pulsation modes in the K2 light curve. A preliminary asteroseismic solution is in reasonable agreement with the spectroscopic atmospheric parameters. Three of the pulsation modes are clearly rotationally split multiplets, which we use to demonstrate that the white dwarf is not synchronously rotating with the orbital period but has a rotation period of 2.49 ± 0.53 h. This is faster than any known isolated white dwarf, but slower than almost all white dwarfs measured in non-magnetic cataclysmic variables, the likely future state of this binary.",
author = "Hermes, {J. J.} and G{\"a}nsicke, {B. T.} and Agnes Kim and Kawaler, {Steven D.} and Fuchs, {J. T.} and Dunlap, {B. H.} and Clemens, {J. C.} and Montgomery, {M. H.} and P. Chote and Thomas Barclay and Marsh, {T. R.} and A. Gianninas and D. Koester and Winget, {D. E.} and Armstrong, {D. J.} and A. Rebassa-Mansergas and Schreiber, {M. R.}",
year = "2015",
month = "5",
day = "1",
doi = "10.1093/mnras/stv1053",
language = "English (US)",
volume = "451",
pages = "1701--1712",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",

}

Hermes, JJ, Gänsicke, BT, Kim, A, Kawaler, SD, Fuchs, JT, Dunlap, BH, Clemens, JC, Montgomery, MH, Chote, P, Barclay, T, Marsh, TR, Gianninas, A, Koester, D, Winget, DE, Armstrong, DJ, Rebassa-Mansergas, A & Schreiber, MR 2015, 'Insights into internal effects of common-envelope evolution using the extended Kepler mission', Monthly Notices of the Royal Astronomical Society, vol. 451, no. 2, pp. 1701-1712. https://doi.org/10.1093/mnras/stv1053

Insights into internal effects of common-envelope evolution using the extended Kepler mission. / Hermes, J. J.; Gänsicke, B. T.; Kim, Agnes; Kawaler, Steven D.; Fuchs, J. T.; Dunlap, B. H.; Clemens, J. C.; Montgomery, M. H.; Chote, P.; Barclay, Thomas; Marsh, T. R.; Gianninas, A.; Koester, D.; Winget, D. E.; Armstrong, D. J.; Rebassa-Mansergas, A.; Schreiber, M. R.

In: Monthly Notices of the Royal Astronomical Society, Vol. 451, No. 2, 01.05.2015, p. 1701-1712.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Insights into internal effects of common-envelope evolution using the extended Kepler mission

AU - Hermes, J. J.

AU - Gänsicke, B. T.

AU - Kim, Agnes

AU - Kawaler, Steven D.

AU - Fuchs, J. T.

AU - Dunlap, B. H.

AU - Clemens, J. C.

AU - Montgomery, M. H.

AU - Chote, P.

AU - Barclay, Thomas

AU - Marsh, T. R.

AU - Gianninas, A.

AU - Koester, D.

AU - Winget, D. E.

AU - Armstrong, D. J.

AU - Rebassa-Mansergas, A.

AU - Schreiber, M. R.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - We present an analysis of the binary and physical parameters of a unique pulsating white dwarf with a main-sequence companion, SDSS J1136+0409, observed for more than 77 d during the first pointing of the extended Kepler mission: K2 Campaign 1. Using new groundbased spectroscopy, we show that this post-common-envelope binary has an orbital period of 6.89760103(60) h, which is also seen in the photometry as a result of Doppler beaming and ellipsoidal variations of the secondary.We spectroscopically refine the temperature of the white dwarf to 12 330 ± 260 K and its mass to 0.601 ± 0.036 M⊙. We detect seven independent pulsation modes in the K2 light curve. A preliminary asteroseismic solution is in reasonable agreement with the spectroscopic atmospheric parameters. Three of the pulsation modes are clearly rotationally split multiplets, which we use to demonstrate that the white dwarf is not synchronously rotating with the orbital period but has a rotation period of 2.49 ± 0.53 h. This is faster than any known isolated white dwarf, but slower than almost all white dwarfs measured in non-magnetic cataclysmic variables, the likely future state of this binary.

AB - We present an analysis of the binary and physical parameters of a unique pulsating white dwarf with a main-sequence companion, SDSS J1136+0409, observed for more than 77 d during the first pointing of the extended Kepler mission: K2 Campaign 1. Using new groundbased spectroscopy, we show that this post-common-envelope binary has an orbital period of 6.89760103(60) h, which is also seen in the photometry as a result of Doppler beaming and ellipsoidal variations of the secondary.We spectroscopically refine the temperature of the white dwarf to 12 330 ± 260 K and its mass to 0.601 ± 0.036 M⊙. We detect seven independent pulsation modes in the K2 light curve. A preliminary asteroseismic solution is in reasonable agreement with the spectroscopic atmospheric parameters. Three of the pulsation modes are clearly rotationally split multiplets, which we use to demonstrate that the white dwarf is not synchronously rotating with the orbital period but has a rotation period of 2.49 ± 0.53 h. This is faster than any known isolated white dwarf, but slower than almost all white dwarfs measured in non-magnetic cataclysmic variables, the likely future state of this binary.

UR - http://www.scopus.com/inward/record.url?scp=84938118201&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938118201&partnerID=8YFLogxK

U2 - 10.1093/mnras/stv1053

DO - 10.1093/mnras/stv1053

M3 - Article

VL - 451

SP - 1701

EP - 1712

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -