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Hα Surge Activity at the First Stage of Magnetic Flux Emergence

Published online by Cambridge University Press:  12 April 2016

Hiroki Kurokawa  and
Goro Kawai
Hiroki Kurokawa
Affiliation:
Kwasan and Hida Observatories, Kyoto University Kamitakara, Gifu 506-13, Japan
Goro Kawai
Affiliation:
Kwasan and Hida Observatories, Kyoto University Kamitakara, Gifu 506-13, Japan

Abstract

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We present a new observational evidence of the magnetic field reconnection in emerging flux regions (EFR). Our observations show that Hα surges are the first active manifestation of emerging magnetic field in some EFRs. We call them EFR-surges. Examining their morphological and evolutionary characteristics, we conclude that they are produced by the magnetic field reconnection between the EFR and the pre-existing surrounding region.

Type
Session 8. Structure and Role of Emerging Flux Regions
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 507 - 510
Copyright
Copyright © Astronomical Society of the Pacific 1993

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