ON THE PROPAGATION OF p-MODES INTO THE SOLAR CHROMOSPHERE

被引：37

作者：

de Wijn, A. G. ^{[1
]}

McIntosh, S. W. ^{[1
]}

De Pontieu, B. ^{[2
]}

机构：

[1] Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA

[2] Lockheed Martin Solar & Astrophys Lab, Palo Alto, CA 94304 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2009年 / 702卷 / 02期

关键词：

Sun: chromosphere; Sun: magnetic fields; Sun: oscillations; OPTICAL TELESCOPE; PHOTOSPHERIC OSCILLATIONS; WAVE-PROPAGATION; MAGNETOACOUSTIC SHOCKS; DYNAMIC FIBRILS; MAGNETIC-FIELD; GRAVITY-WAVES; FLUX TUBES; HINODE; ATMOSPHERE;

D O I：

10.1088/0004-637X/702/2/L168

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We employ tomographic observations of a small region of plage to study the propagation of waves from the solar photosphere to the chromosphere using a Fourier phase-difference analysis. Our results show the expected vertical propagation for waves with periods of 3 minutes. Waves with 5 minute periods, i.e., above the acoustic cutoff period, are found to propagate only at the periphery of the plage, and only in the direction in which the field can be reasonably expected to expand. We conclude that field inclination is critically important in the leakage of p-mode oscillations from the photosphere into the chromosphere.

引用

页码：L168 / L171

页数：4

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