Results 1 to 10 of about 530 (150)
A Low-Insertion Loss Cryogenic Edge-Mode Isolator With 18 GHz Bandwidth
IEEE Journal of Microwaves, 2023 Cryogenic isolators play an important role in low-noise receiver systems widely employed in millimeter and submillimeter telescopes. To enable a significantly wider Intermediate Frequency (IF) bandwidth, there is strong demand for a wideband, low-loss ...
Lingzhen Zeng +2 more
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2 mm Observations and the Search for High-redshift Dusty Star-forming Galaxies
The Astrophysical Journal, 2023 Finding high-redshift ( z ≫ 4) dusty star-forming galaxies is extremely challenging. It has recently been suggested that millimeter selections may be the best approach since the negative K-correction makes galaxies at a given far-infrared luminosity ...
L. L. Cowie, A. J. Barger, F. E. Bauer
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The PhotoDissociation Region Toolbox: Software and Models for Astrophysical Analysis
The Astronomical Journal, 2022 The PhotoDissociation Region Toolbox provides comprehensive, easy-to-use, public software tools and models that enable an understanding of the interaction of the light of young, luminous, massive stars with the gas and dust in the Milky Way and in other ...
Marc W. Pound, Mark G. Wolfire
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Applied Sciences, 2023 Radio astronomical observations at millimeter and submillimeter wavelengths are a very important tool for astrophysical research. However, there is a huge area in northeastern Eurasia, including the whole Russian territory, which lacks sufficiently large
Igor I. Zinchenko +4 more
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The 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
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Lack of Correlations between Cold Molecular Gas and AGN Properties in Type 1 AGNs at z ≲ 0.5
The 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
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EAS Publications Series, 2009 For submillimeter astronomy, particularly at 200m, the ARENA working group has proposed a 25 m telescope at the For submillimeter astronomy, particularly at 200µm, the ARENA working group has proposed a 25 m telescope at the Concordia station on Dome C. Issues related to this suggestion are reviewed. ; © 2010 EAS, EDP Sciences.
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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 ...
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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
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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
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