Statistical study of two years of solar flare radio spectra obtained with the owens valley solar array

Document Type

Article

Publication Date

4-10-2004

Abstract

We present results of analysis of 412 flares during 2001-2002 as detected by the Owens Valley Solar Array (OVSA). This is an in-depth study to investigate some results suggested by a previous study of solar bursts (Nita et al. 2002), which was limited to the peak time of the bursts at a few frequency bands. The new study includes the temporal dependence, at 4 s time resolution, of parameters measured at 40 frequencies in the range 1-18 GHz. We investigate distributions of burst parameters such as maximum flux density in the spectra, peak frequency, spectral slopes below and above the peak frequency (optically thick and thin slopes, respectively), and burst durations. We classify the microwave bursts according to their spectral properties and provide tables of averaged spectral parameters for each spectral type and for different frequency and intensity ranges.

Identifier

2542538384 (Scopus)

Publication Title

Astrophysical Journal

External Full Text Location

https://doi.org/10.1086/382219

e-ISSN

15384357

ISSN

0004637X

First Page

528

Last Page

545

Issue

1 I

Volume

605

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