Results 11 to 20 of about 20,687 (218)

Uranus’s and Neptune’s Stratospheric Water Abundance and Vertical Profile from Herschel-HIFI

open access: yesThe 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

open access: yesThe 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

THz Instruments for Space [PDF]

open access: yes, 2007
Terahertz technology has been driven largely by applications in astronomy and space science. For more than three decades cosmochemists, molecular spectroscopists, astrophysicists, and Earth and planetary scientists have used submillimeter-wave or ...
Siegel, Peter H.
core   +1 more source

Submillimeter Observations of the Ultraluminous BAL Quasar APM 08279+5255 [PDF]

open access: yes, 1998
With an inferred bolometric luminosity of $5\times10^{15}{\rm \lsun}$, the recently identified z=3.87, broad absorption line quasar APM 08279+5255 is apparently the most luminous object currently known.
Clements D. L.   +14 more
core   +2 more sources

Outflows and disks of brown dwarfs with SMA, CARMA and ALMA

open access: yesEPJ 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

Far-infrared polarimetry from the Stratospheric Observatory for Infrared Astronomy [PDF]

open access: yes, 2007
Multi-wavelength imaging polarimetry at far-infrared wavelengths has proven to be an excellent tool for studying the physical properties of dust, molecular clouds, and magnetic fields in the interstellar medium.
Chuss, D. T.   +10 more
core   +2 more sources

ALMA Millimeter/Submillimeter Sources among Spitzer SMUVS Galaxies at z > 2 in the COSMOS Field

open access: yesThe Astrophysical Journal, 2023
Submillimeter observations reveal the star formation activity obscured by dust in the young Universe. It still remains unclear how galaxies detected at submillimeter wavelengths are related to ultraviolet/optical-selected galaxies in terms of their ...
Tomoko L. Suzuki   +2 more
doaj   +1 more source

ALMA 1.1 mm Observations of a Conservative Sample of High-redshift Massive Quiescent Galaxies in SHELA

open access: yesThe Astrophysical Journal, 2023
We present a sample of 30 massive (log( M _* / M _⊙ ) > 11) z = 3–5 quiescent galaxies selected from the Spitzer-HETDEX Exploratory Large Area (SHELA) Survey and observed at 1.1 mm with Atacama Large Millimeter/submillimeter Array (ALMA) Band 6 ...
Katherine Chworowsky   +13 more
doaj   +1 more source

ALMA High-frequency Long-baseline Campaign in 2019: Band 9 and 10 In-band and Band-to-band Observations Using ALMA’s Longest Baselines

open access: yesThe Astrophysical Journal Supplement Series, 2023
The Atacama Large Millimeter/submillimeter Array high-frequency long-baseline campaign in 2019 (HF-LBC-2019) was arranged to undertake band 9 (690 GHz) and 10 (850 GHz) observations using the longest 16 km baselines in order to explore calibration ...
Luke T. Maud   +8 more
doaj   +1 more source

An overview of the planned CCAT software system [PDF]

open access: yes, 2014
CCAT will be a 25m diameter sub-millimeter telescope capable of operating in the 0.2 to 2.1mm wavelength range. It will be located at an altitude of 5600m on Cerro Chajnantor in northern Chile near the ALMA site.
Brazier, Adam   +9 more
core   +2 more sources

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