SIMBAD references

2003AJ....125.2196F - Astron. J., 125, 2196-2214 (2003/April-0)

Spectroscopy of early F stars: γ Doradus candidates and possible metallic shell stars.

FEKEL F.C., WARNER P.B. and KAYE A.B.

Abstract (from CDS):

We obtained high-resolution spectroscopic observations of 34 γ Doradus candidates. From the red-wavelength spectra, we determined spectral classes, radial velocities, and projected rotational velocities. The spectra of seven late A or early F stars show metallic lines that have composite profiles consisting of a narrow component near the center of a broad line, indicating that they may be shell stars or binaries. Several stars, including HD 152896, HD 173977, HD 175337, and HD 195068/9, show large line profile asymmetries. Two stars, HD 11443 (=α Trianguli) and HD 149420, are ellipsoidal variables and not γ Doradus stars. The percentage of binary systems in our sample may be as high as 74%.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: General - Stars: Circumstellar Matter - Stars: Fundamental Parameters - Stars: Variables: Other

Simbad objects: 48

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2020.11.25-06:48:41

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