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 1983

Details 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 1983 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 1983

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...244..155m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 244, no. 1, April 1991, p. 155-165. Research supported by MPI, CNR, and Depart

Astronomy and Astrophysics

Astronomy

7

Flare Stars, Stellar Temperature, Ultraviolet Astronomy, Ultraviolet Spectra, Very Large Array (Vla), Astronomical Spectroscopy, Late Stars, Stellar Flares

Scientific paper

A 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.

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