Channeling 5 Minute Photospheric Oscillations into the Solar Outer Atmosphere through Small-Scale Vertical Magnetic Flux Tubes

Bibcode
2008ApJ...676L..85K
DOI
10.1086/587057
Khomenko, E.; Centeno, R.; Collados, M.; Trujillo Bueno, J.
Bibliographical reference

The Astrophysical Journal, Volume 676, Issue 1, pp. L85-L88.

Advertised on:
3
2008
Journal
The Astrophysical Journal
Number of authors
4
IAC number of authors
3
Citations
75
Refereed citations
69
Description
We report two-dimensional MHD simulations which demonstrate that photospheric 5 minute oscillations can leak into the chromosphere inside small-scale vertical magnetic flux tubes. The results of our numerical experiments are compatible with those inferred from simultaneous spectropolarimetric observations of the photosphere and chromosphere obtained with the Tenerife Infrared Polarimeter (TIP) at 10830 Å. We conclude that the efficiency of energy exchange by radiation in the solar photosphere can lead to a significant reduction of the cutoff frequency and may allow for the propagation of the 5 minute waves vertically into the chromosphere.
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Type
Refereed
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