Results 21 to 30 of about 301,318 (244)
CASA, the Common Astronomy Software Applications for Radio Astronomy [PDF]
Publications of the Astronomical Society of the Pacific, 2022 CASA, the Common Astronomy Software Applications, is the primary data processing software for the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G.
the Casa Team +54 more
semanticscholar +1 more source
Uranus’s and Neptune’s Stratospheric Water Abundance and Vertical Profile from Herschel-HIFI
The Planetary Science Journal, 2022 Here we present new constraints on Uranus’s and Neptune’s externally sourced stratospheric water abundance using disk-averaged observations of the 557 GHz emission line from Herschel’s Heterodyne Instrument for the Far-Infrared.
N. A. Teanby +4 more
doaj +1 more source
ALMA View of the High-velocity-dispersion Compact Cloud CO 0.02–0.02 at the Galactic Center
The Astrophysical Journal, 2023 We report the results of observations toward the center of the molecular cloud CO 0.02–0.02 made using the Atacama Large Millimeter/Submillimeter Array.
Yuhei Iwata +4 more
doaj +1 more source
Submillimeter Wave Astronomy [PDF]
1976 International Conference on Submillimeter Waves and Their Applications, 1976 Scientific Overview Astronomical observations at submillimeter wavelengths, between 40 μm and 1 mm, study astro-physical sources and problems which differ from and complement those accessible at other wavelengths. Although a few nonthermal sources are known, most of the radiation observed in this spectral band from astronomical sources outside of the ...
openaire +2 more sources
Technology Advances for Radio Astronomy [PDF]
, 2013 The field of radio astronomy continues to provide fundamental contributions to the understanding of the evolution, and inner workings of, our universe.
Russell, Damon Stuart
core +1 more source
Outflows and disks of brown dwarfs with SMA, CARMA and ALMA
EPJ Web of Conferences, 2013 Brown dwarfs are on the dividing line between planets and stars. Up to date, about 1,000 brown dwarfs, including the coolest known brown dwarfs with temperatures of ∼300 K as cool as the human body, have been discovered.
Tho Do D. +4 more
doaj +1 more source
Applied Optics, 2014 High-performance, integrated spectrometers operating in the far-infrared and submillimeter ranges promise to be powerful tools for the exploration of the epochs of reionization and initial galaxy formation.
G. Cataldo +5 more
semanticscholar +1 more source
A Low Noise Receiver for Submillimeter Astronomy [PDF]
SPIE Proceedings, 1986 A broadband, low noise heterodyne receiver, suitable for astronomical use, has been built using a Pb alloy superconducting tunnel junction (SIS). The RF coupling is quasioptical via a bowtie antenna on a quartz lens and is accomplished without any tuning elements.
Wengler, M. J. +3 more
openaire +2 more sources
A 492 GHz quasioptical SIS receiver for submillimeter astronomy [PDF]
, 1994 A 492 GHz quasioptical superconductor-insulator-superconductor (SIS) heterodyne receiver for submillimeter astronomy has been constructed with a double-sideband noise temperature of 170±25 K, where the system response is an average over a 600 MHz i.f ...
G. Engargiola, J. Zmuidzinas, K. Lo
semanticscholar +2 more sources
The Submillimeter Wave Astronomy Satellite [PDF]
International Astronomical Union Colloquium, 1990 AbstractThe Submillimeter Wave Astronomy Satellite (SWAS) is a NASA Small-Explorer Class experiment whose objective is to study both the chemical composition and the thermal balance in dense (NH2 > 103 cm−3) molecular clouds and, by observing many clouds throughout our galaxy, relate these conditions to the processes of star formation.
openaire +1 more source