775 citations · 959 across the 6 of their papers we have counts for
6 papers
New Precision Orbits of Bright Double-Lined Spectroscopic Binaries. I: RR Lyncis, 12 Bootis, and HR 6169
Jocelyn Tomkin, Francis C. Fekel
Radial velocities from the 2.1 m telescope at McDonald Observatory supplemented with radial velocities from the coude' feed telescope at KPNO provide new precise orbits for the dou…
Orbits of Hyades Multiple-Lined Spectroscopic Binaries. Paper 2: The Double-Lined System HD 27149
Jocelyn Tomkin
A new determination of the orbit of the Hyades double-lined spectroscopic binary HD 27149 is presented. The well-defined orbit provides the spectroscopic basis for an extremely acc…
The Chemical Compositions of Galactic Disk F and G Dwarfs
Bacham E. Reddy, Jocelyn Tomkin, David L. Lambert +1
Photospheric abundances are presented for 27 elements from carbon to europium in 181 F-G dwarfs from a differential LTE analysis of high-resolution and high signal-to-noise spectra…
The 1995-1996 Decline of R Coronae Borealis - High Resolution Optical Spectroscopy
N. Kameswara Rao, David L. Lambert, Mark T. Adams +10
A set of high-resolution optical spectra of RCrB acquired before, during, and after its 1995-1996 decline is discussed. All of the components reported from earlier declines are see…
Rubidium in Metal-Deficient Disk and Halo Stars
Jocelyn Tomkin, David L. Lambert
We report the first extensive study of stellar Rb abundances. High-resolution spectra have been used to determine, or set upper limits on, the abundances of this heavy element and…
The rise and fall of the NaMgAl stars
Jocelyn Tomkin, Bengt Edvardsson, David L. Lambert +1
We have made new abundance determinations for a sample of NaMgAl stars. These stars, which are a subgroup of the nearby metal-rich field F and G disk dwarfs, were first identified…