Published January 20, 2014
| Version v1
Journal article
COMPARISON OF PHOTOMETRIC VARIABILITY BEFORE AND AFTER STELLAR FLARES
Creators
- 1. Department of Geoscience, Aarhus University, Høegh-Guldbergs Gade 2, DK-8000 Aarhus C (Denmark)
- 2. Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark)
Description
The energy in the solar acoustic spectrum is known to be correlated with flares, but it is not known if the same is true for stellar flares. In order to answer this question, we have analyzed 73 flares in 39 solar-like stars. These flares were identified in the 854 solar-like stars observed by the Kepler spacecraft that have stellar parameters measured with asteroseismology. Though we were not able to identify a statistically significant enhancement of the energy in the high-frequency part of the post-flare acoustic spectra compared to the pre-flare spectra of these stars, we did identify a larger variability between the energy in the high-frequency part of the post- and pre-flare acoustic spectra compared to spectra taken at random times
Availability note (English)
Available from http://dx.doi.org/10.1088/2041-8205/781/1/L22Additional details
Identifiers
Publishing Information
- Journal Title
- Astrophysical Journal Letters
- Journal Volume
- 781
- Journal Issue
- 1
- Journal Page Range
- [5 p.]
- ISSN
- 2041-8205
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46069354
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- COMPARATIVE EVALUATIONS; ELECTRON PLASMA WAVES; EMISSION SPECTRA; ION ACOUSTIC WAVES; OSCILLATIONS; RANDOMNESS; STARS; STELLAR FLARES
- Descriptors DEC
- EVALUATION; ION WAVES; PLASMA WAVES; SPECTRA; STELLAR ACTIVITY