Physics of the impulsive phase of solar flares

Conference · Fri Jan 01 04:00:00 EST 1982 · Adv. Space Res.; (United States)

OSTI ID:6448737

Kundu, M R

A review is presented of the physics of the impulsive phase of solar flares in relation to high resolution microwave, hard X-ray, and ultraviolet observations based on research done on the Impulsive Phase of Flares during the Solar Maximum Year. High spatial resolution observations are presented of the structure of microwave flaring loops as well as their interpretations in terms of arcades of loops as the sites of primary energy release. High temporal and spatial resolution measurements in hard X-rays and observations of the relative locations of microwave and hard X-ray emitting regions are presented and their significance with respect to the energy release site and the electron acceleration is examined. Also considered is the relative timing of the peaks of impulsive hard X-ray and microwave burst, as well as the significance of ultraviolet measurements in obtaining the density of flaring regions. In addition, decimeter and meter wave manifestations of preflash phase and millisecond pulsations at centimeter and decimeter wavelengths and the relevant physical processes involved are examined.

• Research Organization: Maryland Univ., College Park
• OSTI ID: 6448737
• Report Number(s): CONF-820582-
• Conference Information: Journal Name: Adv. Space Res.; (United States) Journal Volume: 2
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
IONIZING RADIATIONS
LEPTONS
MICROWAVE RADIATION
RADIATIONS
RADIOWAVE RADIATION
RESOLUTION
REVIEWS
SOLAR ACTIVITY
SOLAR ELECTRONS
SOLAR FLARES
SOLAR PARTICLES
SOLAR RADIATION
SOLAR RADIO BURSTS
SPATIAL RESOLUTION
STELLAR RADIATION
ULTRAVIOLET RADIATION
X RADIATION