ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We had observed the high-resolution Hα profiles of fourteen chromospherically active binaries which areη And, 3 Cam, 4 UMi,ν 2 Sgr,τ Sgr, HR 7333, 33 Psc,ε UMi, λ And,ξ UMa, 12 Cam,ζ And,α Aur andο Dra from August 1990 to August 1991. The Hα emission and absorption equivalent widths, and the half widths and the radial velocities of these systems were determined. These data have a good supply for the information of the catalog of chromospherically active binary stars. The Hα profiles of HR 7333, 12 Cam, 4 UMi,ε UMi andλ And show marked emission filling in core, but 33 Psc,τ Sgr,τ Sgr andη And systems show the Hα as the stronger absorption lines. The observed fourteen binaries presented very different activity levels.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00658977
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