G. F. Benedict
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View article: Examining the status of object markers in Rombo-Kiseri
Examining the status of object markers in Rombo-Kiseri Open
This article examines the syntactic status of object marking in Rombo-Kiseri, a variety of a Bantu language, Rombo (E623), spoken in the Kilimanjaro region, Tanzania. The article contributes to the documentation of main syntactic propertie…
View article: The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry
The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry Open
We combine Hubble Space Telescope (HST) Fine Guidance Sensor, Hipparcos, and Gaia DR3 astrometric observations of the K0 V star 14 Her with the results of an analysis of extensive ground-based radial velocity data to determine perturbation…
View article: The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry
The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry Open
We combine Hubble Space Telescope (HST) Fine Guidance Sensor, Hipparcos, and Gaia DR3 astrometric observations of the K0 V star 14 Her with the results of an analysis of extensive ground-based radial velocity data to determine perturbation…
View article: The μ Arae Planetary System: Radial Velocities and Astrometry
The μ Arae Planetary System: Radial Velocities and Astrometry Open
With Hubble Space Telescope Fine Guidance Sensor astrometry and published and previously unpublished radial velocity measures, we explore the exoplanetary system μ Arae. Our modeling of the radial velocities results in improved orbital ele…
View article: The η Aquilae System: Radial Velocities and Astrometry in Search of η Aql B
The η Aquilae System: Radial Velocities and Astrometry in Search of η Aql B Open
The classical Cepheid η Aql was not included in past Leavitt Law work because of a presumed complicating orbit due to a known B9.8V companion. To determine the orbit of η Aql B, we analyze a significant number of radial velocity (RV) measu…
View article: The eta Aquilae System: Radial Velocities and Astrometry in Search of eta Aql B
The eta Aquilae System: Radial Velocities and Astrometry in Search of eta Aql B Open
The classical Cepheid eta Aql was not included in past Leavitt Law work (Benedict et al. 2007) because of a presumed complicating orbit due to a known B9.8V companion. To determine the orbit of eta Aql B, we analyze a significant number of…
View article: Precision Millimeter Astrometry of the α Centauri AB System
Precision Millimeter Astrometry of the α Centauri AB System Open
Alpha Centauri A is the closest solar-type star to the Sun and offers the best opportunity to find and ultimately to characterize an Earth-sized planet located in its habitable zone. Here, we describe initial results from an Atacama Large …
View article: The Multiple-component Binary Hyad, vA 351
The Multiple-component Binary Hyad, vA 351 Open
We extend results first announced by Franz et al. (1998), that identified vA351 = H346 in the Hyades as a multiple star system containing a white dwarf. With Hubble Space Telescope Fine Guidance Sensor fringe tracking and scanning, and mor…
View article: Astrometry with<i>Hubble Space Telescope</i>Fine Guidance Sensors—A Review
Astrometry with<i>Hubble Space Telescope</i>Fine Guidance Sensors—A Review Open
Over the last 20 years Hubble Space Telescope Fine Guidance Sensor interferometric astrometry has produced precise and accurate parallaxes of astrophysical interesting stars and mass estimates for stellar companions. We review parallax res…
View article: THE SOLAR NEIGHBORHOOD. XXXVII. THE MASS–LUMINOSITY RELATION FOR MAIN-SEQUENCE M DWARFS*
THE SOLAR NEIGHBORHOOD. XXXVII. THE MASS–LUMINOSITY RELATION FOR MAIN-SEQUENCE M DWARFS* Open
We present a mass–luminosity relation (MLR) for red dwarfs spanning a range of masses from 0.62 to the end of the stellar main sequence at 0.08 . The relation is based on 47 stars for which dynamical masses have been determined, primarily …
View article: Modeling Multi-Wavelength Stellar Astrometry. I. Sim Lite Observations Of Interacting Binaries
Modeling Multi-Wavelength Stellar Astrometry. I. Sim Lite Observations Of Interacting Binaries Open
Interacting binaries (IBs) consist of a secondary star that fills or is very close to filling its Roche lobe, resulting in accretion onto the primary star, which is often, but not always, a compact object. In many cases, the primary star, …
View article: A New Calibration Of Galactic Cepheid Period-Luminosity Relations From B To K Bands, And A Comparison To LMC Relations
A New Calibration Of Galactic Cepheid Period-Luminosity Relations From B To K Bands, And A Comparison To LMC Relations Open
Context. The universality of the Cepheid period-luminosity (PL) relations has been under discussion since metallicity effects were assumed to play a role in the value of the intercept and, more recently, of the slope of these relations. Ai…
View article: Detection Of A Third Planet In The HD 74156 System Using The Hobby-Eberly Telescope
Detection Of A Third Planet In The HD 74156 System Using The Hobby-Eberly Telescope Open
We report the discovery of a third planetary-mass companion to the G0 star HD 74156. High-precision radial velocity measurements made with the Hobby-Eberly Telescope aided the detection of this object. The best-fit triple-Keplerian model t…
View article: The Three-Dimensional Architecture Of The Upsilon Andromedae Planetary System
The Three-Dimensional Architecture Of The Upsilon Andromedae Planetary System Open
The upsilon Andromedae system is the first exoplanetary system to have the relative inclination of two planets' orbital planes directly measured, and therefore offers our first window into the three-dimensional configurations of planetary …
View article: Distance Scale Zero Points From Galactic RR Lyrae Star Parallaxes
Distance Scale Zero Points From Galactic RR Lyrae Star Parallaxes Open
We present new absolute trigonometric parallaxes and proper motions for seven Population II variable stars-five RR Lyr variables: RZ Cep, XZ Cyg, SU Dra, RR Lyr, and UV Oct; and two type 2 Cepheids: VY Pyx and kappa Pav. We obtained these …