BeppoSAX detection of hard (>20keV) X-ray emission from the active star UX Arietis

Details BeppoSAX detection of hard (>20keV) X-ray emission from the active star UX Arietis BeppoSAX detection of hard (>20keV) X-ray emission from the active star UX Arietis

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999nuphs..69...29p&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 69, Issue 1-3, p. 29-32.

Physics

Nuclear Physics

3

Scientific paper

We present preliminary results of a BeppoSAX observation of the active binary star UX Arietis. We report the first detection in a star other the Sun of hard (>20keV) X-ray emission during a large flare. Similar results were obtained a few days later for a flare observed by BeppoSAX on Algol. We analyse time-resolved spectra of the UX Ari flare obtained with the LECS and MECS detectors over the spectral range 0.1 to 10keV and we discuss possible interpretations for the high energy tail seen with the PDS detector.

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