Spectroscopic orbits of two early A-type eclipsing binaries EG Serpentis and DN Ursae Majoris

Details Spectroscopic orbits of two early A-type eclipsing binaries EG Serpentis and DN Ursae Majoris Spectroscopic orbits of two early A-type eclipsing binaries EG Serpentis and DN Ursae Majoris

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98.1312p&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, Dec. 1986, p. 1312-1316. NSF-supported research.

Astronomy and Astrophysics

Astronomy

6

A Stars, Astronomical Spectroscopy, Early Stars, Eclipsing Binary Stars, Stellar Orbits, Astronomical Photometry, Light Curve, Orbital Elements

Scientific paper

Spectroscopic orbits of the early-A eclipsing system EG Ser and DN UMa (HR 4560) are obtained from Lick spectrograms. A photometric orbit of EG Ser is lacking. Uncertainty in analysis of photometry of DN UMa by García and Giménez is caused by the presence of close visual companions. Variation of light between eclipses is much less than expected from tidal distortion of the components of DN UMa.

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