Flow around sunspots from it p-mode frequency shift measurements View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1997-11

AUTHORS

Ming-Tsung Sun, Dean-Yi Chou, Chia-Hsien Lin, The TON Team

ABSTRACT

We use five-day helioseimic data from the Taiwan Oscillation Network to study the flow around a sunspot, NOAA 7887. The p-mode oscillations in an annular region centered at the sunspot are decomposed into the modes propagating toward and away from the sunspot. We find that the frequency of an outgoing mode is greater than that of the corresponding incoming mode. This indicates that the plasma is flowing outward from the sunspot. The outflow velocity is estimated to be about 40–80 m s-1. More... »

PAGES

59-65

References to SciGraph publications

  • 1988-09. Mass and energy flow near sunspots in SOLAR PHYSICS
  • 1995-09. Taiwan Oscillation Network in SOLAR PHYSICS
  • 1988-03. Mass and energy flow near sunspots in SOLAR PHYSICS
  • 1991-09. Convective flows around sunspot-like objects in SOLAR PHYSICS
  • 1969-10. The evolution of the photospheric network in SOLAR PHYSICS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1023/a:1004927811123

    DOI

    http://dx.doi.org/10.1023/a:1004927811123

    DIMENSIONS

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