W
William D. Langer
Researcher at California Institute of Technology
Publications - 158
Citations - 10900
William D. Langer is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Molecular cloud & Interstellar cloud. The author has an hindex of 50, co-authored 157 publications receiving 10468 citations. Previous affiliations of William D. Langer include Princeton Plasma Physics Laboratory & Jet Propulsion Laboratory.
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GUSTO: Gal/Xgal U/LDB Spectroscopic-Stratospheric TeraHertz Observatory
Christopher K. Walker,Craig Kulesa,Paul F. Goldsmith,Christopher Groppi,Frank Helmich,David Hollenbach,Jonathan H. Kawamura,William D. Langer,Gary J. Melnick,David A. Neufeld,Jorge L. Pineda,Gordon J. Stacey,Antony A. Stark,Alexander G. G. M. Tielens,Mark Wolfire,Harold W. Yorke,Erick T. Young +16 more
Proceedings ArticleDOI
Large format heterodyne arrays for observing far-infrared lines with SOFIA
Christopher K. Walker,Craig Kulesa,Jenna Kloosterman,David Lesser,T. Cottam,Christopher Groppi,Jonas Zmuidzinas,Michael L. Edgar,Simon J. E. Radford,Paul F. Goldsmith,William D. Langer,Harold W. Yorke,Jonathan H. Kawamura,Imran Mehdi,David Hollenbach,J. Stutzki,H. Huebers,J. R. Gao,Christopher L. Martin +18 more
TL;DR: The StratoSTAR: Stratospheric Submm/THz Array Receiver (STRATOSAT) as mentioned in this paper is a large-scale Heterodyne Array (HHA) with a front-end insert and associated local oscillator system/relay optics.
Journal ArticleDOI
Electron Densities and Nitrogen Abundances in Ionized Gas Derived Using [NII] Fine-structure and Hydrogen Recombination lines.
Jorge L. Pineda,Shinji Horiuchi,L. D. Anderson,L. D. Anderson,Matteo Luisi,Paul F. Goldsmith,William D. Langer,Thomas B. H. Kuiper,Geoff Bryden,Melissa Soriano,Joseph Lazio +10 more
TL;DR: In this article, the electron density of ionized gas using the ratio of the intensity of the [NII] 205um line to that of Hydrogen radio recombination lines (RRL) was derived.
Journal ArticleDOI
Ionized gas at the edge of the Central Molecular Zone
William D. Langer,Paul F. Goldsmith,Jorge L. Pineda,Thangasamy Velusamy,Miguel Angel Requena-Torres,Helmut Wiesemeyer +5 more
TL;DR: In this paper, a small portion of the edge of the CMZ near Sgr E was observed with spectrally resolved [C II] 158 micron and [N II] 205 micron fine structure lines at six positions with the GREAT instrument on SOFIA and using Herschel HIFI on-the-fly strip maps.
Characterization of a 5-eV neutral atomic oxygen beam facility
Jason A. Vaughn,R. C. Linton,M. R. Carruth,A. F. Whitaker,J. W. Cuthbertson,William D. Langer,R. W. Motley +6 more
TL;DR: An experimental effort to characterize an existing 5-eV neutral atomic oxygen beam facility being developed at Princeton Plasma Physics Laboratory is described in this article, which includes atomic oxygen flux and flux distribution measurements using a catalytic probe, energy determination using a commercially designed quadrupole mass spectrometer (QMS), and the exposure of oxygen-sensitive materials in this beam facility.