32 citations · 96 across the 5 of their papers we have counts for
4 papers · 1 filter
The Fine Structure Lines of Hydrogen in HII Regions
Brian Dennison, B. E. Turner, Anthony H. Minter
The 2s_{1/2} state of hydrogen is metastable and overpopulated in HII regions. In addition, the 2p states may be pumped by ambient Lyman-alpha radiation. Fine structure transitions…
Galactic Foregrounds in OVRO and UCSB South Pole 1994 Cosmic Microwave Background Anisotropy Data
Pia Mukherjee, Brian Dennison, Bharat Ratra +3
We study Galactic emission foreground contamination of the OVRO and UCSB South Pole 1994 cosmic microwave background (CMB) anisotropy data by cross-correlating with templates of in…
Space VLBI at Low Frequencies
D. Jones, R. Allen, J. Basart +25
At sufficiently low frequencies, no ground-based radio array will be able to produce high resolution images while looking through the ionosphere. A space-based array will be needed…
The Extreme Scattering Event Toward PKS 1741-038: VLBI Images
T. Joseph W. Lazio, A. L. Fey, Brian Dennison
(Abridged) We report multi-epoch VLBI observations of the source PKS 1741-038 as it underwent an extreme scattering event. Observations at four epochs were obtained, and images wer…