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Rotational modulation and flares on RS canum Venaticorum and BY Draconis stars. XVI - IUE spectroscopy and VLA observations of Gl 182( = V 1005 Orionis) in October 1983A large flare was detected simultaneously with IUE and VLA on Gl 182 on October 5, 1983, this event showing the largest C IV flare enhancement yet observed by IUE. A smaller flare was also detected on October 4, although only with the IUE satellite. Line ratio and emission measure techniques are used to derive various physical parameters of the flares. The radiative losses in the temperature region log T(e) = 4.3-5.4 in the two flares are 2.9 x 10 to the 33rd and 8.4 x 10 to the 32nd ergs, respectively. Total radiative losses over the whole temperature range log T(e) = 4.0-8.0 are estimated to be of the order of 6.4 x 10 to the 34th and 1.1 x 10 to the 34th ergs, respectively. In the October 5, flare, a very strong ultraviolet continuum is present with a total energy of 1.9 x 10 to the 33rd ergs over the wavelength range 1250-1950 A.
Document ID
19910052728
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mathioudakis, M.
(Armagh Observatory Ireland)
Doyle, J. G.
(Armagh Observatory Ireland)
Byrne, P. B.
(Armagh Observatory United Kingdom)
Rodono, M.
(Catania, Universita Italy)
Gibson, D. M.
(MIT Socorro, NM, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1991
Publication Information
Publication: Astronomy and Astrophysics
Volume: 244
Issue: 1 Ap
ISSN: 0004-6361
Subject Category
Astrophysics
Accession Number
91A37351
Funding Number(s)
CONTRACT_GRANT: NAG5-82
Distribution Limits
Public
Copyright
Other

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