Bibcode
Vargas Domínguez, S.; de Vicente, A.; Bonet, J. A.; Martínez-Pillet, V.
Bibliographical reference
Astronomy and Astrophysics, Volume 516, id.A91
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6
2010
Journal
Citations
26
Refereed citations
23
Description
Context. Though there is increasing evidence linking the moat flow and
the Evershed flow along the penumbral filaments, there is not a clear
consensus regarding the existence of a moat flow around umbral cores and
pores, and the debate is still open. Solar pores appear to be a suitable
scenario to test the moat-penumbra relation as they correspond to a
direct interaction between the umbra and the convective plasma in the
surrounding photosphere without any intermediate structure in between.
Aims: We study solar pores based on high-resolution ground-based
and satellite observations. Methods: Local correlation tracking
techniques were applied to different-duration time series to analyze the
horizontal flows around several solar pores. Results: Our results
establish that the flows calculated from different solar pore
observations are coherent among each other and show the determining and
overall influence of exploding events in the granulation around the
pores. We do not find any sign of moat-like flows surrounding solar
pores, but a clearly defined region of inflows surrounding them.
Conclusions: The connection between moat flows and flows associated to
penumbral filaments is hereby reinforced.
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Tobías
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