276 citations · 754 across the 11 of their papers we have counts for
4 papers · 1 filter
Radiative Transfer Effects in He I Emission Lines
Robert A. Benjamin, Evan D. Skillman, Derck P. Smits
We consider the effect of optical depth of the 2 ^{3}S level on the nebular recombination spectrum of He I for a spherically symmetric nebula with no systematic velocity gradients.…
Radio Emission from GRO J1655-40 during the 1994 Jet Ejection Episodes
D. C. Hannikainen, R. W. Hunstead, D. Campbell-Wilson +3
We report multifrequency radio observations of GRO J1655-40 obtained with the Australia Telescope Compact Array, the Molonglo Observatory Synthesis Telescope and the Hartebeesthoek…
Improving Predictions for Helium Emission Lines
Robert A. Benjamin, Evan D. Skillman, Derck P. Smits
We have combined the detailed He I recombination model of Smits with the collisional transitions of Sawey & Berrington in order to produce new accurate helium emissivities that inc…
Size of the Vela Pulsar's Radio Emission Region: 500 km
C. R. Gwinn, M. J. Ojeda, M. C. Britton +9
We use interstellar scattering of the Vela pulsar to determine the size of its emission region. From interferometric phase variations on short baselines, we find that radio-wave sc…