Results 161 to 170 of about 20,687 (218)

Light-Driven Intraoctahedral Halide Isomerization in Two-Dimensional Mixed Halide Perovskites. [PDF]

J Am Chem Soc
Mao W, Haque E, Bird SA, Dubajic M, Lu Y, Chua XW, Xu Z, Li X, Oldfield M, Li J, Yan W, Hall CR, Lin Q, Zhao J, Chesman ASR, Beane G, Schiffrin A, Ducati C, Medhekar N, Stranks SD, Bach U.   +20 more
europepmc   +1 more source

The multiwavelength behaviour of BL Lacertae explained by a wiggling filamentary jet

Raiteri C.
europepmc   +1 more source

Advanced receivers for submillimeter and far infrared astronomy

, 2008
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Submillimeter astronomy (heterodyne spectroscopy)

Proceedings of the IEEE, 1992
Some of the aspects of submillimeter-wave astronomy which are relevant to the field of heterodyne spectroscopy are reviewed. Most of the discussion concerns the dense interstellar medium where stars are forming, with some work presented on nearby galaxies.
T.G. Phillips, J. Keene
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Submillimeter receivers for radio astronomy

Proceedings of the IEEE, 1992
The state of development of receivers for submillimeter-wave radio astronomy is reviewed. Bolometers for continuum observation, hot-electron mixer receivers for narrowband spectral line observation, and heterodyne receivers, both Schottky diode and superconducting tunnel junction, are presented.
R. Blundell, C.-y.E. Tong
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Submillimeter Wave Astronomy Satellite

SPIE Proceedings, 1994
The Submillimeter Wave Astronomy Satellite (SWAS) mission will study galactic star formation and interstellar chemistry. To carry out this mission, SWAS will survey dense (n H2 > 10 3 cm -3 ) molecular clouds within our galaxy in either the ground-state or a low- lying transition of five astrophysically important species: H 2 O, H 2 18 O, O 2 , CI ...
Volker Tolls, Gary J. Melnick, Alexander Dalgarno, Giovanni G. Fazio, John R. Stauffer, Patrick Thaddeus, Neal R. Erickson, Ron L. Snell, Paul F. Goldsmith, Martin Harwit, David J. Hollenbach, David G. Koch, David A. Neufeld, Rudolf T. Schieder, Gisbert F. Winnewisser   +14 more
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Low-pass interference filters for submillimeter astronomy

Applied Optics, 1980
Low-pass (long-wave transmitting) interference filters, suitable for broadband photometric observations, previously have been constructed from series of capacitive grids stretched on thin Mylar. These filters have the desired optical properties of high transmission, sharp cut-ons, and good blocking at short wavelengths.
S E, Whitcomb, J, Keene
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The Submillimeter Wave Astronomy Satellite: Mission science objectives

Advances in Space Research, 1995
The Submillimeter Wave Astronomy Satellite (SWAS) mission is dedicated to the study of star formation and interstellar chemistry. To carry out this mission, SWAS will survey dense (nH2 > 103 cm−3) molecular clouds within our galaxy in either the ground-state or a low-lying transition of five astrophysically important species: H2O, H218O, O2, CI, and
Melnick, GJ, Dalgarno, A, Erickson, NR, Fazio, GG, Goldsmith, PF, Harwit, M, Hollenbach, DJ, Koch, DG, Neufeld, DA, Schieder, R, Snell, RL, Stauffer, JR, Thaddeus, P, Tolls, V, Winnewisser, GF   +14 more
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Submillimeter astronomy and cosmology

Space technology and applications international forum (STAIF - 97), 1997
In this paper I summarize some key astrophysics questions and the future space missions needed to address them. These missions, and the questions that drive them, fall under the aegis of two of the four thematic areas of NASA’s Office of Space Science: “The Astronomical Search for Origins and Planetary Systems” covers astrophysics in the near-infrared,
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Submillimeter Heterodyne Astronomy from Mauna Kea

1981 International Conference on Submillimeter Waves and Their Applications, 1981
This paper reports on the results of a collaboration between NASA Goddard Space Flight Center and MIT Lincoln Laboratory in which a laser heterodyne receiver was developed and used at the NASA infrared telescope on Mauna Kea. The NASA IRTF is located on the island of Hawaii at an elevation of 14000 ft (4200 m).
D. Buhl, G. Chin, H. R. Fetterman, D. D. Peck, B. J. Clifton, P. E. Tannenwald, G. A. Koepf   +6 more
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