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Sunspot motion, flares and type III bursts in McMath 11482

Zirin, H. and Lazareff, B. (1975) Sunspot motion, flares and type III bursts in McMath 11482. Solar Physics, 41 (2). pp. 425-438. ISSN 0038-0938.

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We have studied a series of flares in McMath 11482, 1972 August 19–22, with particular reference to the basis for the flares and comparison with dekameter radio data. We find that the flares were produced by rapid (∼ 1000 km h⁻¹) westward motion of a large new p spot. Many flares occur just in front of the spot, and they cease when the motion stops. All flares occurring in front of the spot produce type III bursts, while even strong flares elsewhere in the region produce little or no type III. The time of type III emission agrees perfectly with the start of the Hα flare. Thus type III bursts are only produced in favorable configurations. Simultaneous K-line movies are compared with Hα films and show little difference in flare appearance.

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Additional Information:© 1975 Kluwer Academic Publishers. Provided by the NASA Astrophysics Data System. Received 9 May, 1973; in revised form 24 October, 1974. Dr James Warwick kindly furnished his radio data. This work was supported by NSF under GA 24015 and by NASA under 05-002-071.
Funding AgencyGrant Number
NSFGA 24015
Subject Keywords:Flare; Produce Type; Radio Data; Motion Stop; Favorable Configuration
Issue or Number:2
Record Number:CaltechAUTHORS:20200630-071702090
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Official Citation:Zirin, H., Lazareff, B. Sunspot motion, flares and type III bursts in McMath 11482. Sol Phys 41, 425–438 (1975).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104152
Deposited By: Tony Diaz
Deposited On:30 Jun 2020 17:44
Last Modified:30 Jun 2020 17:44

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