Coronal X-Ray Jets Observed with the Yohkoh Soft X-Ray Telescope.
نویسندگان
چکیده
منابع مشابه
Statistical Study of Solar X-Ray Jets Observed with the Yohkoh Soft X-Ray Telescope
We have found 100 X-ray jets in the database of full Sun images taken with the Soft X-ray Telescope (SXT) aboard Yohkoh during the period from 1991 November through 1992 April. A statistical study for these jets results in the following characteristics: 1) Most are associated with small flares (microflaressubflares) at their footpoints. 2) The lengths lie in the range of a few x 10-4 x 10 km. 3...
متن کاملCharacteristics of Anemone Active Regions Appearing in Coronal Holes Observed with Yohkoh Soft X-ray Telescope
Coronal structure of active regions appearing in coronal holes is studied by using the data obtained with the Soft X-Ray Telescope (SXT) aboard Yohkoh from 1991 November to 1993 March. The following characteristics are found; Many of active regions appearing in coronal holes show a structure that looks like a “sea-anemone”. Such active regions are called anemone ARs. About oneforth of all activ...
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Individual X ? ray photons in the keV energy range produce hundreds of photoelectrons in a single pixel of a CCD array detector. The number of photoelectrons produced is a linear function of the photon energy, allowing the measurement of spectral information with an imaging detector system. The Yohkoh Soft X ? ray Telescope uses a CCD in an integrating mode and makes temperature estimates from ...
متن کاملPropagating transverse waves in soft X-ray coronal jets
Aims. The theoretical model for magnetohydrodynamic (MHD) modes guided by a field-aligned plasma cylinder with a steady flow is adapted to interpret transverse waves observed in solar coronal hot jets, discovered with Hinode/XRT in terms of fast magnetoacoustic kink modes. Methods. Dispersion relations for linear magnetoacoustic perturbations of a plasma jet of constant cross-section surrounded...
متن کاملOn-Orbit Performance and Calibration of the Soft X-Ray Telescope on Yohkoh
This paper documents details of the on-orbit performance, data problem solving, and calibration of the Soft X-ray Telescope (SXT) experiment on Yohkoh. This information is important to a full understanding of the strengths and weaknesses of the SXT data set. The paper begins with summaries of SXT calibration issues and how they have been addressed, operational anomalies experienced during the m...
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ژورنال
عنوان ژورنال: Journal of geomagnetism and geoelectricity
سال: 1996
ISSN: 0022-1392
DOI: 10.5636/jgg.48.19