✦ LIBER ✦

Hard X-ray dynamic spectrum of flares observed by Hinotori

✍ Scribed by N. Nitta; T. Takakura; K. Ohki; M. Yoshimori

Publisher: Springer
Year: 1983
Tongue: English
Weight: 334 KB
Volume: 86
Category: Article
ISSN: 0038-0938
DOI: 10.1007/bf00157196

No coin nor oath required. For personal study only.

✦ Synopsis

Time variations of the hard X-ray spectrum in solar flares are observed by the hard X-ray spectrometer (HXM) aboard the Hinotori satellite. With a new presentation of the dynamic spectrum we have studied the differences between impulsive and gradual hard X-ray bursts. In the impulsive events a "bent" spectrum up to some hundred keV persists at least until the main peak. In the gradual events, on the other hand, a power-law spectrum augmented by a low-energy excess is dominant.

📜 SIMILAR VOLUMES

Computed magnetic field structure of the

Computed magnetic field structure of the flares observed by Hinotori hard X-ray telescope

✍ Takashi Sakurai 📂 Article 📅 1983 🏛 Springer 🌐 English ⚖ 306 KB

General aspects of hard X-ray flares obs

General aspects of hard X-ray flares observed by Hinotori: Gradual burst and impulsive burst

✍ K. Ohki; T. Takakura; S. Tsuneta; N. Nitta 📂 Article 📅 1983 🏛 Springer 🌐 English ⚖ 566 KB

We survey here the observational results on five gradual and four impulsive type events from the hard X-ray imaging (SXT) and spectrometer (HXM) instruments on the Hinotori satellite. A set of differences are clearly recognized between the gradual and impulsive type bursts. These are: (i) Hard X-ray

Time variations of hard X-ray bursts obs

Time variations of hard X-ray bursts observed with the Solar X-ray Telescope aboard Hinotori (with a movie)

✍ Takeo Kosugi; Saku Tsuneta 📂 Article 📅 1983 🏛 Springer 🌐 English ⚖ 283 KB

Rocket observation of energy spectrum of

Rocket observation of energy spectrum of diffuse hard X-rays

✍ Y. Fukada; S. Hayakawa; M. Ikeda; I. Kasahara; F. Makino; Y. Tanaka 📂 Article 📅 1975 🏛 Springer Netherlands 🌐 English ⚖ 221 KB

Characteristics of gamma-ray line flares

Characteristics of gamma-ray line flares as observed in hard X-ray emissions and other phenomena

✍ Taeil Bai; B. R. Dennis; A. L. Kiplinger; L. E. Orwig; K. J. Frost 📂 Article 📅 1983 🏛 Springer 🌐 English ⚖ 572 KB

Observations of gamma-ray lines from solar flares by SMM demonstrated that energetic protons and heavy ions are accelerated during the impulsive phase. In order to understand the acceleration mechanism for gamma-ray producing protons and heavy ions, we have studied the characteristics of the flares

Observations of fine time structure in s

Observations of fine time structure in solar flare hard X-ray bursts

✍ K. Hurly; M. Niel; R. Talon; I. V. Estulin; V. Ch. Dolidze 📂 Article 📅 1983 🏛 Springer 🌐 English ⚖ 335 KB

Hard X-ray (ZI00 keY) time histories of solar flares which occurred on 1978 December 4 an@ 1979 February 18 are presented. The first flare was observed by 3 identical instruments from near-earth orbit (Prognoz 7) and interplanetary space (Venera Ii and 12). Fine time structure is present down to t