Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988acasn..29..226c&link_type=abstract
Acta Astronomica Sinica, Vol.29:3, P. 226, 1988
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Hα region spectra for five binary systems, ɛ Aur, ζ Aur, 31 Cyg, 32 Cyg and 22 Vul, were observed by the 1 m reflector Coudé spectrograph at Yunnan Observatory and the 2.1 m telescope Coudé Reticon at McDonald Observatory. All observations were taken outside their eclipses. The authors obtained line profiles, equivalent widths and radial velocities of Hα.
Cha Guang-Wei
Li Xiang-Yang
Pen S. Q.
Tan Hai Siong
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