Results 11 to 20 of about 301,318 (244)

Submillimeter Astronomy [PDF]

open access: yesEAS Publications Series, 2009
<p>Published - <a href="/records/s6r44-2y226/files/Radford2009p13172Astrophysics_Detector_Workshop_2008.pdf?download=1">Radford2009p13172Astrophysics_Detector_Workshop_2008.pdf</a></p>
S.J.E. Radford, Radford, S. J. E.
openaire   +4 more sources

Observing Conditions for Submillimeter Astronomy [PDF]

open access: yes, 2011
© 2011 Instituto de Astronomía, UNAM. It is a pleasure to thank the many colleagues who have contributed to these measurements. Jeff Peterson initiated development of the 350 μm tippers. CCAT site evaluation is carried out in the Parque Astronómico Atacama in northern Chile under the auspices of the Programa de Astronomía, a program of the Comisión ...
Radford, S. J. E.
openaire   +4 more sources

Beam-axis stability during gantry rotation measured with scintillation dosimetry. [PDF]

open access: yesJ Appl Clin Med Phys
Abstract Purpose Volumetric modulated arc therapy (VMAT) requires high mechanical precision due to continuous gantry rotation. This study aims to investigate beam‐axis stability during VMAT delivery and evaluate scintillation‐based imaging as a complementary quality assurance (QA) tool.
Ohira S   +9 more
europepmc   +2 more sources

SCUBA-2 High Redshift Bright Quasar Survey. II. The Environment of z ∼ 6 Quasars at Submillimeter Band

open access: yesThe Astrophysical Journal, 2023
The formation of the first supermassive black holes is expected to have occurred in some most pronounced matter and galaxy overdensities in the early universe.
Qiong Li   +16 more
doaj   +1 more source

Superconducting Microwave Resonator Arrays for Submillimeter/Far-infrared Imaging [PDF]

open access: yes, 2012
Superconducting microwave resonators have the potential to revolutionize submillimeter and far-infrared astronomy, and with it our understanding of the universe.
Noroozian, Omid
core   +1 more source

Lack of Correlations between Cold Molecular Gas and AGN Properties in Type 1 AGNs at z ≲ 0.5

open access: yesThe Astrophysical Journal, 2023
We present new NOrthern Extended Millimeter Array (NOEMA) observations of the CO(2–1) emission in eight of the brightest Palomar-Green quasars at z ≲ 0.5 to investigate the role of active galactic nucleus (AGN) feedback in luminous quasars detected at ...
Juan Molina   +5 more
doaj   +1 more source

Optimisation-based alignment of wide-band integrated superconducting spectrometers for submillimeter astronomy [PDF]

open access: yesAstronomy & Astrophysics
Integrated superconducting spectrometers (ISSs) for wide-band submillimeter (submm) astronomy use quasi-optical systems for coupling radiation from the telescope to the instrument.
A. Moerman   +9 more
semanticscholar   +1 more source

Millimeter/submillimeter fourier transform spectroscopy of Jovian planet atmospheres [PDF]

open access: yes, 1996
A new Fourier transform spectrometer, built for use at the Caltech Submillimeter Observatory, has been used to observe all four of the jovian planets (Jupiter, Saturn, Uranus, and Neptune) in the millimeter-submillimeter wavelength range (0.3- 3.0 mm).
Weisstein, Eric W.
core   +1 more source

Optimizing End-to-End System Performance for Millimeter and Submillimeter Spectroscopy of Protostars: Wideband Heterodyne Receivers and Sideband-Deconvolution Techniques for Rapid Molecular-Line Surveys [PDF]

open access: yes, 2011
This thesis describes the construction, integration, and use of a new 230-GHz ultra-wideband heterodyne receiver, as well as the development and testing of a new sideband-deconvolution algorithm, both designed to enable rapid, sensitive molecular-line ...
Sumner, Matthew Casey
core   +1 more source

Kinetic inductance detectors for millimeter and submillimeter astronomy [PDF]

open access: yes, 2012
We present recent developments in Kinetic Inductance Detectors (KID) for large arrays of detectors. The main application is ground-based millimeter wave astronomy. We focus in particular, as a case study, on our own experiment: NIKA (Neel IRAM KID Arrays)
N. Boudou   +7 more
semanticscholar   +1 more source

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