New hα survey of chromospherically active binaries View Full Text


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Article Info

DATE

1993-07

AUTHORS

Xuefu Liu, Aigen Li, He Huang, Fangjun Lu, Guangwei Cha

ABSTRACT

We had observed the high-resolution Hα profiles of fourteen chromospherically active binaries which areη And, 3 Cam, 4 UMi,ν2 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. More... »

PAGES

359-380

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00658977

DOI

http://dx.doi.org/10.1007/bf00658977

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1042545659


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