Schumann resonance frequency increase during solar X-ray bursts
نویسندگان
چکیده
منابع مشابه
Large frequency drifts during Type I X-ray bursts
We study the spin-down of a neutron star atmosphere during the Type I X-ray burst in low mass X-ray binaries. Using polar cap acceleration models, we show that the resulting stellar “wind” torque on the burning shell due to the flowing charged particles (electrons, protons and ions) from the star’s polar caps may change the shell’s angular momentum during the burst. We conclude that the net cha...
متن کاملOscillations During Thermonuclear X-ray Bursts
High amplitude, nearly coherent X-ray brightness oscillations during thermonuclear X-ray bursts were discovered with the Rossi X-ray Timing Explorer (RXTE) in early 1996. Spectral and timing evidence strongly supports the conclusion that these oscillations are caused by rotational modulation of the burst emission and that they reveal the spin frequency of neutron stars in low mass X-ray binarie...
متن کاملMillisecond Oscillations During Thermonuclear X-ray Bursts
I review the basic phenomenology and theory of the millisecond brightness oscillations observed during thermonuclear X-ray bursts from 13 of ≈ 70 accreting neutron stars in low-mass X-ray binaries. Compelling observations indicate that the oscillations are produced by surface brightness patterns on the rapidly rotating neutron stars. However, it remains to be understood (1) why the brightness p...
متن کاملDeka-keV X-ray observations of solar bursts with WATCH/GRANAT: frequency distributions of burst parameters
Solar flare observations in the deka-keV range are performed by the WATCH experiment on board the GRANAT satellite. The WATCH experiment is presented, including the energy calibration as applied in the present work. The creation of the solar burst catalogue covering two years of observation is described and some examples of solar observations are given. The estimated energy releases in the flar...
متن کاملChanges of the ® rst Schumann resonance frequency during relativistic solar proton precipitation in the 6 November 1997 event
The variations of the ®rst mode of Schumann resonance are analyzed using data from Kola peninsula stations during the solar proton event of 6 November 1997. On this day the intensive ̄ux of energetic protons on GOES-8 and the 10% increase of the count rate of the neutron monitor in Apatity between 1220 and 2000 UT were preceded by a solar X-ray burst at 1155 UT. This burst was accompanied by a ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2004
ISSN: 0148-0227
DOI: 10.1029/2003ja010019