Results 191 to 200 of about 301,318 (244)

Radio and Submillimeter Astronomy: Radio Telescopes

2016
Radio astronomy, the first astronomy after the optical one, investigates the radio emission of celestial sources. This chapter discusses the receiver systems based on the superheterodyne technique, investigating the different components: antennas, amplifiers, mixers, and detectors. The faintness of the radio signals demands radio telescope systems with
R. Poggiani
openaire   +2 more sources

Submillimeter Astronomy and Mauna Kea - An Overview

IEEE MTT-S International Microwave Symposium Digest IEEE MTT-S International Microwave Symposium, 2007
Astronomy in the submillimeter region of the electromagnetic spectrum, covering wavelengths between 1 mm and 0.1 mm, is now just past its 30th anniversary. During this period there has been enormous progress in technology for detecting and analyzing signals. This has led to discovery of astronomical sources not even considered when observations in this
Paul Goldsmith
exaly   +2 more sources

Cryogenic metal mesh bandpass filters for submillimeter astronomy

Applied Optics, 1984
The design and performance of a tunable double-half-wave bandpass filter centered at 286 microns (Delta lambda/lambda = 0.16) and operating at cryogenic temperatures (for astronomy applications) are presented. The operating principle is explained, and the fabrication of the device, which comprises two identical mutually coupled Fabry-Perot filters with
M. Dragovan
openaire   +3 more sources

On the future of submillimeter astronomy at the South Pole

AIP Conference Proceedings, 1990
The South Pole is the best accessible submillimeter‐wave observatory site in the world. The Antarctic Submillimeter Telescope/Remote Observatory (AST/RO), a 1.5 m offset telescope for heterodyne spectroscopy, will be a step toward a permanent submillimeter observatory there.
exaly   +2 more sources

Coherent Detector Arrays for Millimeter and Submillimeter Astronomy [PDF]

, 2009
Progress in many areas of astronomy requires large-area surveys and observations of extended objects. This includes the cosmic microwave background, nearby galaxies, the Milky Way, and regions of star-forming regions within our galaxy. The ability to carry out such studies is critically dependent on the development of affordable high-sensitivity focal ...
Goldsmith, Paul F., Carpenter, John M., Erickson, Neal, Fisher, Rick, Ford, John, Todd, Gaier, Groppi, Chris, Harris, Andy, Mark, Heyer, Kulesa, Craig, Lawrence, Charles, Morgan, Matt, Mundy, Lee, Narayanan, Gopal, O'Neil, Karen, Readhead, Tony, Samoska, Lorene, Schloerb, Peter, Snell, Ronald, Walker, Christopher C., Ziurys, Lucy   +20 more
openaire   +2 more sources

Infrared and Submillimeter Astronomy

1977
G. Fazio
openaire   +2 more sources

Current tasks and prospects of millimeter and submillimeter astronomy

Physics-Uspekhi
I. Zinchenko
openaire   +2 more sources

Recent progress on photon-counting superconducting detectors for submillimeter astronomy

SPIE Astronomical Telescopes + Instrumentation, 2003
Per Delsing, Edward J Wollack, Daniel E Prober   +2 more
exaly   +2 more sources

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
openaire   +1 more source

First light of DESHIMA on ASTE: on-chip filterbank spectrometer for submillimeter wave astronomy (Conference Presentation)

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 2018
An ultra-wideband, large field-of-view (sub)millimeter wave imaging spectrometer is imperative for uncovering the evolution of dust-enshrouded cosmic star formation rate, galaxy evolution, and structure formation, over cosmic time.
A. Endo, K. Karatsu, Y. Tamura, S. Ishii, T. Takekoshi, T. Oshima, A. Taniguchi, T. Ishida, K. Suzuki, D. Thoen, R. Huiting, Toshihiko Kobiki, T. Bakx, Kaui Chin, Kazuyuki Fujita, V. Murugesan, S. Bosma, Ozan Yurduseven, T. Ueda, M. Naruse, S. Nakatsubo, A. Kouchi, J. Maekawa, S. Yates, N. Llombart, T. Klapwijk, R. Kawabe, S. Asayama, P. V. D. Werf, K. Kohno, J. Baselmans   +30 more
semanticscholar   +1 more source