Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd..12e..28m&link_type=abstract
Long Wavelength Astrophysics, 26th meeting of the IAU, Joint Discussion 12, 21 August 2006, Prague, Czech Republic, JD12, #28
Astronomy and Astrophysics
Astrophysics
Scientific paper
High-frequency spikes have a narrow band (Δ f / f =1 - 2 %) and short duration (τ = 100 ms). Similar phenomenon in decameter range is called stria. Their properties are usually discussed when they are found in chains and form Type ?b bursts. In the present report results of observations of the stria bursts out of the chains, or spikes, chaotically placed on dynamic spectrum are presented. More then 1000 of such bursts were analyzed during the Type ? bursts storm of July, 24 - August, 03, 2002. Statistical analysis has shown that their average duration and frequency width equal approximately to 1sec and 60 μHz correspondingly. But if the duration slowly increases with the moving off the active area from the central meridian, their frequency width remains almost constant. Average meanings of these values are close to parameters of striae in chains. We have not found dependences of these bursts fluxes from observation frequency. A spike emission model in the assumption of fast electrons travel through the filamentary density irregularities in the solar corona is discussed.
Abranin Edward P.
Dorovskyy Vladimir
Konovalenko Aleksander
Lecacheux Alain
Mel'nik Valentin N.
No associations
LandOfFree
Properties of Solar Spikes at Decameter Wavelengths does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Properties of Solar Spikes at Decameter Wavelengths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of Solar Spikes at Decameter Wavelengths will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1785315