Short-term variations of cosmic-ray intensity and flare related data in 1981-1983

Details Short-term variations of cosmic-ray intensity and flare related data in 1981-1983 Short-term variations of cosmic-ray intensity and flare related data in 1981-1983

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003newa....8..777m&link_type=abstract

New Astronomy, Volume 8, Issue 8, p. 777-794.

Astronomy and Astrophysics

Astronomy

8

Sun: Flares, Methods: Miscellaneous, Cosmic Rays, Sunspots, X-Rays: General

Scientific paper

A statistical analysis of the cosmic-ray intensity (CR) daily means, registered at three Neutron Monitor stations with different cut-off rigidities (Deep River, Climax and Alma-Ata), as well as, of the solar hard X-ray flares fluence recorded by Venera-13, -14 space-probes, has been performed for the time interval 1981-1983. Various methods of time series spectrum analysis, such as Fast Fourier Analysis (FFT) and Maximum Entropy (MESA), accompanied by appropriate statistical tests, have been employed to detect periodicities, while the method of Successive Approximations (SA) is used independently in order to define the amplitude and the phase of each fluctuation. New short-term periodicities of 100, 70, 50 and 32 days, in addition to the known ones of 152, 27 and 14 days, appeared in cosmic ray data. During this particular time interval, similar spectral behaviour has been reported in the solar hard X-ray flares data. The influence of the solar hard X-ray flares variability in the energy range 50-500 keV, expressed by their fluence values, upon the cosmic-ray modulation, is discussed.

Affiliated with

Also associated with

No associations

Rating

Short-term variations of cosmic-ray intensity and flare related data in 1981-1983 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 Short-term variations of cosmic-ray intensity and flare related data in 1981-1983, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short-term variations of cosmic-ray intensity and flare related data in 1981-1983 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1766935