Results 251 to 260 of about 38,209 (292)

Team Approach to Millimeter Astronomy

Science, 1998
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Application of Millimeter Wave Receivers to Astronomy

S-MTT International Microwave Symposium Digest, 1974
Millimeter wave receivers are discussed from the point of view of applications of line astronomy. A heterodyne bolometer system is described which has a noise temperature of 300/spl deg/K at 230 GHz. It is expected that these receivers will extend the range of radio line astronomy to about 500 GHz.
T.G. Phillips, K.B. Jefferts
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Molecular Millimeter Wave Astronomy

S-MTT International Microwave Symposium Digest, 1974
A current review of recent observation of interstellar molecules in the millimeter wavelength region will be presented.
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Sub-Millimeter Astronomy and Astrophysics

1985
As of 1984, the submm band (ν >300 GHz) is relatively unexplored. The word “relatively” should be stressed since, evidently, a great deal of work has been done. However, much of this is of the “discovery” or “first detection” category with emphasis on the priority of a given result, and less thought as to astrophysical consequences.
T. L. Wilson, C. M. Walmsley
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MILLIMETER-WAVE OPTICS AND RADIO ASTRONOMY

Soviet Physics Uspekhi, 1962
Talk at the Physics Institute, Academy of Sciences U.S.S.R., at a meeting on March 12, 1962, commemorating the fiftieth anniversary of the death of P. N. Lebedev.
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Millimeter and submillimeter wave astronomy

Annual Meeting Optical Society of America, 1986
The interstellar medium consists of diffuse clouds and dense clouds containing atoms, molecules, and dust particles at temperatures ranging from 3 to several hundred kelvins. The dense cloud gas particles are mostly molecular and the species found vary from simple molecules such as H2, CO, CS, HCN, etc.
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Contemporary Millimeter- and Submillimeter-Wave Astronomy

Radiophysics and Quantum Electronics, 2003
We discuss the scientific importance of the millimeter- and submillimeter-wave astronomy. The directions of research and the main achievements in cosmology, extragalactic astronomy, and studies of the Galaxy structure, star-formation regions, and Solar-System objects are described. Topical problems are formulated.
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ALMA and Sub-millimeter-wave Astronomy

2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006
The Atacama Large Millimeter/submillimeter Array (ALMA) will be the premier millimeter and submillimeter telescope in the world when completed in 2012. ALMA will be a transformational telescope that allows astronomers to image and study at unprecedented detail the origin of stars and planets, galaxies and biologically relevant chemistry, fundamental ...
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A 0.4K Bolometer Receiver for Millimeter Astronomy

1981 International Conference on Submillimeter Waves and Their Applications, 1981
Engineering tests have been made of a continuum receiver based upon a composite bolometer cooled to 0.4K on the NRAO 36-foot telescope. We will describe some salient features of the receiver design and also discuss the relative sensitivity of this receiver compared to current coherent continuum receivers.
P. Ade, J. Davis, R. Howard, I. Nolt, J. Payne, S. Predko, J. Radostitz   +6 more
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Multibeam receiver for millimeter-wave radio astronomy

Review of Scientific Instruments, 1988
An eight-beam receiver system for millimeter-wave radio astronomy is described. The receiver is designed to map spatially extended radio sources in both spectral line and continuum emission at a wavelength of 1.2 mm. This receiver is now in use on the 12-m radio telescope on Kitt Peak in Arizona.
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