Solar active region emergence and flare productivity

Details Solar active region emergence and flare productivity Solar active region emergence and flare productivity

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hia....14..614d&link_type=abstract

Highlights of Astronomy, Volume 14, p. 614-614

Astronomy and Astrophysics

Astronomy

Sunspots, Sun: Magnetic Fields, Sun: Flares

Scientific paper

We use the workflow capabilities of the AstroGrid Virtual Observatory system () to analyse the relation between flare productivity and location of Active Region (AR) emergence on the Sun. Specifically, we investigate whether emergence of a new region near existing ones results in increased productivity of the new and/or pre-existing AR. To address this question, we build a series of workflows that perform queries to catalogues of regions and flares, and operations on the results of the queries. There is a strong East-West asymmetry in the location of emergence of new regions. We do not find a significant difference between the flaring rate of paired and isolated regions, when we choose a value of 12° as the cutoff between the two populations.

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