UNSPECIFIED. (2005) X-ray quasi-periodic pulsations in solar flares as magnetohydrodynamic oscillations. ASTRONOMY & ASTROPHYSICS, 440 (2). L59-L62. ISSN 0004-6361

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Abstract

We report the first observation at high spatial resolution of long-period quasi-periodic pulsations (QPP) of X-ray radiation during solar flares, made possible with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), supported by complementary data at other wavelengths from space-based and ground-based telescopes. Evidence for the presence ported of a transequatorial loop possibly responsible for the detected periodicity connected with its kink mode is found. Our findings suggest that QPP can be interpreted as a periodic pumping of in a compact flaring electrons modulated by oscillations in loop, a magnetically linked and larger loop acting as a long-period magnetohydrodynamic resonator.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Journal or Publication Title:	ASTRONOMY & ASTROPHYSICS
Publisher:	EDP SCIENCES S A
ISSN:	0004-6361
Date:	September 2005
Volume:	440
Number:	2
Number of Pages:	4
Page Range:	L59-L62
Identification Number:	10.1051/0004-6361:200500169
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/6673

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