Bibcode
Lázaro, C.; Arévalo, M. J.; Almenara, J. M.; Carnerero, M. I.; Moreno, M. A.
Bibliographical reference
New Astronomy, Volume 17, Issue 5, p. 498-503.
Advertised on:
7
2012
Journal
Citations
1
Refereed citations
0
Description
We present the first infrared light curves of the binary V1430 Aql, in
the bands J and K, plus V, R and I light curves and spectra covering the
ranges of Hβ, Hα and Ca II-IRT lines.
Our VRIJK data, together with published radial velocity curves, are
analyzed to determine the orbital and stellar parameters of the system.
Both stellar components present spectroscopic evidence of chromospheric
activity, with emission excesses in the Hβ,
Hα and Ca II-IRT lines. The measured ratio of the lines
Hβ/Hα emission excesses can be
interpreted as originated in plages. Our light curves also show
photometric evidence of cool spots at least on one of the stars.
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