Bibcode
García-Alvarez, D.; Doyle, J. G.; Foing, B. H.; Oliveira, J. M.; Montes, D.
Bibliographical reference
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
Advertised on:
12
2002
Citations
2
Refereed citations
1
Description
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.