Multiwavelength observations of a preflare solar active region using the VLA

Details Multiwavelength observations of a preflare solar active region using the VLA Multiwavelength observations of a preflare solar active region using the VLA

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...291..860k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 291, April 15, 1985, p. 860-864.

Astronomy and Astrophysics

Astrophysics

12

Solar Activity, Solar Flares, Solar Radio Bursts, Astronomical Maps, Interferometry, Magnetic Flux, Radiant Flux Density, Very Large Array (Vla)

Scientific paper

A preflare active region was studied using the Very Large Array at 2, 6, and 20 cm. At 2 cm the region is composed of two components located in regions of opposite polarity. Both components are preheated prior to the impulsive onset of a flare. However, one component develops new structures during preburst phase, and the burst occurs in this location. It is believed that the new structures represent emerging flux regions which interact with an overlying loop to produce a neutral sheet, which ultimately is responsible for triggering the flare.

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