The long-period K + Be binary HR 2577 (MWC 827)

Details The long-period K + Be binary HR 2577 (MWC 827) The long-period K + Be binary HR 2577 (MWC 827)

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100..481d&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, April 1988, p. 481-488.

Astronomy and Astrophysics

Astronomy

3

B Stars, Binary Stars, D Lines, H Alpha Line, K Stars, Ultraviolet Spectra, Absorption Spectra, Iue, Late Stars, Orbital Elements, Radial Velocity, Spectrum Analysis

Scientific paper

New spectroscopic observations near Hα and Na I D, along with ultraviolet IUE scans, have been obtained for the K+Be composite system HR 2577. High-precision radial-velocity measures do not support the suggested 58-year orbit of Hendry (1982). The Hα emission from the Be component undergoes considerable variations typical of its class. The presence of a λ6707 Li I feature as well as the IUE observations support the idea that little or no interaction between the binary components of HR 2577 is taking place.

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