TY - JOUR
T1 - White-light oscillations during a flare on II Peg
AU - Mathioudakis, Michail
AU - Seiradakis, J.H.
AU - Williams, D.R.
AU - Avgoloupis, S.
AU - Bloomfield, Shaun
AU - McAteer, R.T.J.
PY - 2003/6
Y1 - 2003/6
N2 - We analyse the intensity oscillations observed in the gradual phase of a white-light flare on the RS CV n binary II Peg. Fast Fourier Transform power spectra and Wavelet analysis reveal a period of 220 s. The reliability of the oscillation is tested using several criteria. Oscillating coronal loop models are used to derive physical parameters such as temperature, electron density and magnetic field strength associated with the coronal loop. The derived parameters are consistent with the near-simultaneous X-ray observations of the flare. There is no evidence for oscillations in the quiescent state of the binary.
AB - We analyse the intensity oscillations observed in the gradual phase of a white-light flare on the RS CV n binary II Peg. Fast Fourier Transform power spectra and Wavelet analysis reveal a period of 220 s. The reliability of the oscillation is tested using several criteria. Oscillating coronal loop models are used to derive physical parameters such as temperature, electron density and magnetic field strength associated with the coronal loop. The derived parameters are consistent with the near-simultaneous X-ray observations of the flare. There is no evidence for oscillations in the quiescent state of the binary.
UR - http://www.scopus.com/inward/record.url?scp=0038746936&partnerID=8YFLogxK
U2 - 10.1051/0004-6361:20030394
DO - 10.1051/0004-6361:20030394
M3 - Article
SN - 0004-6361
VL - 403
SP - 1101
EP - 1104
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
IS - 3
ER -