activity
19982022
most citedHubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations

370 citations · 2.8k across the 61 of their papers we have counts for

collaborators

61 papers

astro-ph.SR2022★ 4 cited

The eta Aquilae System: Radial Velocities and Astrometry in Search of eta Aql B

G. Fritz Benedict, Thomas G. Barnes, Nancy R. Evans +4

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…

physics.space-ph2018

Fitting the Galactic Electron Spectrum Measured by Voyager at Low Energies and also by CALET/AMS-2 at High Energies Using a Monte Carlo Diffusion Model for Electron Propagation - One Spectrum Fits All

W. R. Webber, J. Quenby, T. Harrison +2

In this paper we compare galactic electron spectra measured up to TeV energies by AMS2 and CALET and that measured by Voyager at the lowest energies down to 1 MeV with that calcula…

physics.space-ph2018★ 1 cited

The Rigidity Dependence of the Diffusion Coefficient in the Heliosheath and an Explanation of the Extreme Solar Modulation Effects for Cosmic Ray Electrons from 3-60 MeV Observed at Voyager 1

William R. Webber, Thomas E. Harrison, Nand Lal +2

We believe that the extreme solar modulation of 3-60 MeV Galactic electrons measured by Voyager in the heliosheath and the interpretation of this new data in terms of the rigidity…

astro-ph.SR2018★ 11 cited

The Identification of Hydrogen-Deficient Cataclysmic Variable Donor Stars

Thomas E. Harrison

We have used ATLAS12 to generate hydrogen-deficient stellar atmospheres to allow us to construct synthetic spectra to explore the possibility that the donor stars in some cataclysm…

astro-ph.SR2018★ 1 cited

Infrared Observations of Southern Classical Novae 1991 to 1992

Thomas E. Harrison, Joni J. Johnson

We report on a program to monitor classical novae (CNe) to determine if they produced dust in the ejecta created by their outbursts. Of the ten systems we followed, five produced d…

astro-ph.SR2017★ 7 cited

The Detection of Discrete Cyclotron Emission Features in Phase-Resolved Optical Spectroscopy of V1500 Cygni

Thomas E. Harrison, Ryan K. Campbell

We have obtained phase-resolved optical spectroscopy of the old nova, and asynchronous polar V1500 Cyg. These new data reveal discrete cyclotron humps from two different strength m…