Oscillatory Behavior and its Connection to Granulation

Details Oscillatory Behavior and its Connection to Granulation Oscillatory Behavior and its Connection to Granulation

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.0933a&link_type=abstract

American Astronomical Society, SPD meeting #40, #9.33; Bulletin of the American Astronomical Society, Vol. 41, p.822

Astronomy and Astrophysics

Astronomy

Scientific paper

Results are presented from two distinct sets of the observations to further elucidate origin of, and the role of high frequency oscillations in
atmospheric dynamics. One set was performed using IBIS that Observatorio
Astrofisico di Arcetri developed. This 2D spectrograph utilized the Fe I 709nm spectral line at the Dunn Solar telescope, Sacramento Peak, of National Solar Observatory. This data set was first speckle reconstructed. The second data set was obtained from the same telescope using BBSO's IRIM with its Rockwell Near Infrared Camera measuring the Fe 1565.7nm spectral line.
It was determined that the magnetic field has a significant role in
propagation of the oscillations, and our near infrared observations revealed
new insights into the oscillatory dynamics of the deep photosphere. Detailed results will be presented.

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