T
Thomas G. Phillips
Researcher at California Institute of Technology
Publications - 477
Citations - 21382
Thomas G. Phillips is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Caltech Submillimeter Observatory & Molecular cloud. The author has an hindex of 77, co-authored 477 publications receiving 20630 citations. Previous affiliations of Thomas G. Phillips include Bayer & ASTRON.
Papers
More filters
Journal ArticleDOI
Statistical Properties of Line Centroid Velocity Increments in the ρ Ophiuchi Cloud
TL;DR: In this paper, a comparison of histograms of CO (2-1) line centroid velocity increments in the rho Ophiuchi molecular cloud with those computed for spectra synthesized from a three-dimensional, compressible, but non-starforming and non-gravitating hydrodynamic simulation is presented.
Journal ArticleDOI
Widespread rotationally hot hydronium ion in the galactic interstellar medium
Dariusz C. Lis,Dariusz C. Lis,Peter Schilke,Edwin Bergin,Maryvonne Gerin,John H. Black,Claudia Comito,M. De Luca,Benjamin Godard,R. Higgins,F. Le Petit,John C. Pearson,Eric W. Pellegrini,Thomas G. Phillips,Shanshan Yu +14 more
TL;DR: In this paper, the authors present new Herschel observations of the (6,6) and (9,9) inversion transitions of the hydronium ion toward Sagittarius B2(N) and W31C and show that the high, ~500 K, rotational temperatures characterizing the population of the highly excited metastable H_3O+ rotational levels are present over a wide range of velocities corresponding to the Sagittaris B2 envelope, as well as the foreground gas clouds between the Sun and the source.
Journal ArticleDOI
Herschel observations of EXtra-Ordinary Sources: The Terahertz spectrum of Orion KL seen at high spectral resolution
Nathan R. Crockett,E. A. Bergin,S. Wang,D. C. Lis,T. A. Bell,G. A. Blake,A. C. A. Boogert,Bruce Bumble,S. Cabrit,Emmanuel Caux,Cecilia Ceccarelli,José Cernicharo,C. Comito,Fabien Daniel,Marie-Lise Dubernet,Martin Emprechtinger,P. J. Encrenaz,E. Falgarone,Maryvonne Gerin,Thomas F. Giesen,J. R. Goicoechea,P. F. Goldsmith,H. Gupta,R. Güsten,Paul Hartogh,Frank Helmich,Eric Herbst,N. Honingh,C. Joblin,D. Johnstone,Alexandre Karpov,J. Kawamura,Jacob Kooi,J.-M. Krieg,W. D. Langer,W. D. Latter,S. D. Lord,Sébastien Maret,Pierrick Martin,Gary J. Melnick,Karl M. Menten,Patrick W. Morris,Holger S. P. Müller,J. A. Murphy,David A. Neufeld,Volker Ossenkopf,J. C. Pearson,M. Perault,Thomas G. Phillips,Rene Plume,S.-L. Qin,Pieter R. Roelfsema,Rudolf Schieder,Peter Schilke,Stephan Schlemmer,J. Stutzki,F. F. S. van der Tak,Aggm Tielens,Neil Trappe,Charlotte Vastel,H. W. Yorke,Shanshan Yu,Jonas Zmuidzinas +62 more
TL;DR: In this paper, the first high spectral resolution observations of Orion KL in the frequency ranges 1573.4 - 1702.8 GHz (band 6b) and 1788.4- 1906.8GHz (band 7b) were obtained using the HIFI instrument on board the Herschel Space Observatory.
Journal ArticleDOI
Detection of the CO J=2. -->. 1 line in M82 and IC 342
TL;DR: In this article, the CO(2-->1) line at 230 GHz in four galaxies and have detected it in two, IC 342 and M82, was searched for and the results showed that the molecular gas in IC 342 appears to be optically thick; that in M82 it is of low optical depth.
Journal ArticleDOI
Noise Equivalent Power of Background Limited Thermal Detectors at Submillimeter Wavelengths
TL;DR: In this article, the authors compare the predictions for the noise power of a bolometer observing through an emissive atmosphere, considering the effect of atmospheric absorption, telescope optical efficiency, and detector optical efficiency.