D
Douglas R. Gies
Researcher at Georgia State University
Publications - 185
Citations - 8375
Douglas R. Gies is an academic researcher from Georgia State University. The author has contributed to research in topics: Stars & Binary star. The author has an hindex of 49, co-authored 169 publications receiving 7878 citations. Previous affiliations of Douglas R. Gies include Association of Universities for Research in Astronomy & University of Texas at Austin.
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Journal ArticleDOI
Stellar Diameters and Temperatures. II. Main-sequence K- and M-stars
Tabetha S. Boyajian,Kaspar von Braun,Gerard T. van Belle,Harold A. McAlister,T. ten Brummelaar,Stephen R. Kane,Philip S. Muirhead,Jeremy Jones,Russel White,Gail H. Schaefer,David R. Ciardi,Todd J. Henry,Mercedes Lopez-Morales,Mercedes Lopez-Morales,Stephen T. Ridgway,Douglas R. Gies,Wei-Chun Jao,Bárbara Rojas-Ayala,J. Robert Parks,Laszlo Sturmann,Judit Sturmann,Nils H. Turner,Chris Farrington,P. J. Goldfinger,D. H. Berger +24 more
TL;DR: In this article, Boyajian et al. presented interferometric angular diameter measurements of 21 low-mass, K- and M-dwarfs made with the CHARA Array.
Journal ArticleDOI
Stellar Diameters and Temperatures II. Main Sequence K & M Stars
Tabetha S. Boyajian,Kaspar von Braun,Gerard van Belle,Harold A. McAlister,T. ten Brummelaar,Stephen R. Kane,Phil Muirhead,Jeremy Jones,Russel White,Gail Schaefer,David R. Ciardi,Todd J. Henry,Mercedes Lopez-Morales,Stephen T. Ridgway,Douglas R. Gies,Wei-Chun Jao,Bárbara Rojas-Ayala,J. Robert Parks,Laszlo Sturmann,Judit Sturmann,Nils H. Turner,Chris Farrington,P. J. Goldfinger,David H. Berger +23 more
TL;DR: In this paper, the authors presented interferometric diameter measurements of 21 K- and M- dwarfs made with the CHARA Array and derived empirical relations between the stellar Teff, radius, and luminosity to broadband color indices and metallicity.
Journal ArticleDOI
Carbon, Nitrogen, and Oxygen Abundances in Early B-Type Stars
Douglas R. Gies,David L. Lambert +1 more
TL;DR: In this paper, a survey of the C, N, and O abundances in a sample of early B-type stars was undertaken to test Lyubimkov's claim that CN-cycled material is mixed to the surfaces of these stars during their core hydrogen-burning phase.
Journal ArticleDOI
Stellar diameters and temperatures. iii. main-sequence a, f, g, and k stars: additional high-precision measurements and empirical relations
Tabetha S. Boyajian,Tabetha S. Boyajian,Kaspar von Braun,Kaspar von Braun,Gerard T. van Belle,Chris Farrington,Gail Schaefer,Jeremy Jones,Russel White,Harold A. McAlister,T. ten Brummelaar,Stephen T. Ridgway,Douglas R. Gies,Laszlo Sturmann,Judit Sturmann,Nils H. Turner,P. J. Goldfinger,Norm Vargas +17 more
TL;DR: In this article, the angular diameters of 23 nearby main-sequence stars, ranging from spectral types A7 to K0, were derived using Hipparcos parallaxes and measured bolometric fluxes.
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A stellar rotation census of b stars: from zams to tams
TL;DR: In this article, the authors derived the projected rotational velocity Vsin i, effective temperature, gravity, mass, and critical rotation speed V crit for each star, and compared the evolutionary trends of rotation (measured according to the polar gravity of the star) with recent models that treat internal mixing.