407 citations · 6k across the 109 of their papers we have counts for
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Active cool stars and He I 10830 Å: the coronal connection
J. Sanz-Forcada, A. K. Dupree
The mechanism of formation of the He I 10830 A triplet in cool stars has been subject of debate for the last 30 years. A relation between the X-ray luminosity and the He I 10830 A…
Testing magnetically confined wind shock models for Beta Cep using XMM-Newton and Chandra phase-resolved X-ray observations
F. Favata, C. Neiner, P. Testa +2
(abridged) We have performed a set of phase-resolved X-ray observations of the magnetic B star Beta Cep, for which theoretical models predict the presence of a confined wind emitti…
Eclipsed X-ray flares in binary stars: geometrical constraints on the flare's location and size
J. Sanz-Forcada, F. Favata, G. Micela
The observation of eclipses during X-rays flares taking place in active cool stars binaries allows us to calculate the position and size of the flares. This information cannot be d…
The Coronae of AR Lac
David P. Huenemoerder, Claude R. Canizares, Jeremy J. Drake +1
We observed the coronally active eclipsing binary, AR Lac, with the High Energy Transmission Grating on Chandra for a total of 97 ks, spaced over five orbits, at quadratures and co…
The Structure of Stellar Coronae in Active Binary Systems
J. Sanz-Forcada, N. S. Brickhouse, A. K. Dupree
A survey of 28 stars using EUV spectra has been conducted to establish the structure of stellar coronae in active binary systems from the EMD, electron densities, and scale sizes.…
The EUVE point of view of AD Leo
J. Sanz-Forcada, G. Micela
All the Extreme Ultraviolet Explorer (EUVE) observations of AD Leo, totalling 1.1 Ms of exposure time, have been employed to analyze the corona of this single M dwarf. The light cu…
Multiwavelength optical observations of the chromospherically active binary system OU Gem
A. Latorre, D. Montes, M. J. Fernandez-Figueroa
We have analysed several multiwavelength optical observations (H_alpha, H_beta, H_epsilon, Ca II H & K, Ca II IRT lines) of chromospherically active binary system OU Gem, taken in…
Multiwavelength optical observations of the chromospherically active binary system MS Ser
J. Sanz-Forcada, D. Montes, M. J. Fernandez-Figueroa +2
We present here a continuation of our ongoing project of multiwavelength optical observations aimed at studying the chromosphere of active binary systems using the information prov…
Simultaneous H, Na~{\sc i} D, D, and He~{\sc i} D observations of a flare on the RS CVn system UX Ari
D. Montes, J. Sanz-Forcada, M. J. Fernández-Figueroa +1
We present simultaneous H, Na~{\sc i} D, D, and He~{\sc i} D spectroscopic observations on the RS CVn system UX Ari. We have found a dramatic increase in the e…