MUSICOS 1998: Optical and X-rays Observations of Flares on the RS CVn Binary HR 1099

Bibcode
2002ASPC..277..479G
García-Alvarez, D.; Doyle, J. G.; Foing, B. H.; Oliveira, J. M.; Montes, D.
Referencia bibliográfica

Stellar Coronae in the Chandra and XMM-NEWTON Era, ASP Conference Proceedings, Vol. 277. Edited by Fabio Favata and Jeremy J. Drake. ISBN: 1-58381-119-2. San Francisco: Astronomical Society of the Pacific, 2002., p.479

Fecha de publicación:
12
2002
Número de autores
5
Número de autores del IAC
0
Número de citas
2
Número de citas referidas
1
Descripción
We present simultaneous and continuous observations of H_alpha, H_beta, NaI D_1, D_2 and HeI D_3 lines of the chromospherically active binary HR 1099. We have observed HR 1099 for more than 3 weeks almost continuously and monitored two flares. An increase in H_alpha, CaII H & K, H_beta, HeI D_3 and HeI lambda6678 and a strong filling-in of the NaI D_1, D_2 and MgI b triplet during one of the flares are observed. We have found that the flares took place at the same phase (0.85) of the binary orbit, and both of them seems to occur near the limb. Several X-rays flares were also detected by ASM on board RXTE. Rotational modulation in the X-rays light curve has been detected with maximum flux when the active K1IV star is in front.
Tipo
Sin árbitro

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