Results 61 to 70 of about 20,687 (218)

Io’s SO2 and NaCl Wind Fields from ALMA

open access: yesThe Astrophysical Journal Letters
We present spatially resolved measurements of SO _2 and NaCl winds on Io at several unique points in its orbit: before and after eclipse and at maximum eastern and western elongation.
Alexander E. Thelen   +5 more
doaj   +1 more source

Antum Crater: A Window Into Ganymede's Icy Evolution

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Located within the extensive dark terrain of Marius Regio, in the anti‐Jovian trailing quadrant of Ganymede, Antum crater is marked by dark‐rayed ejecta that obscure older features and reshape the surrounding landscape. This study investigates Antum and its geological context using optical and infrared data from the Voyager and Galileo ...
Federico Tosi   +9 more
wiley   +1 more source

Accuracy Assessment and Rainfall Intensity Response Mechanisms in GNSS Real‐Time PPP Water Vapor Retrieval: Coupling Effects of Multi‐Source Real‐Time Products and Meteorological Conditions

open access: yesEarth and Space Science, Volume 12, Issue 9, September 2025.
Abstract The Global Navigation Satellite System (GNSS) real‐time Precise Point Positioning (PPP) technology offers a highly efficient approach for atmospheric Precipitable Water Vapor (PWV) monitoring and extreme weather warning. However, its retrieval accuracy is limited by the performance of orbit and clock products, as well as the coupling effects ...
Wenliang Gao   +4 more
wiley   +1 more source

A Full Resolution of the 450 μm Extragalactic Background Light

open access: yesThe Astrophysical Journal Letters
The extragalactic background light (EBL) is the cumulative radiation outside the Milky Way. The determination of its corresponding primary emitting sources as well as its total energy level across the entire electromagnetic spectrum has profound ...
Qi-Ning Hsu   +3 more
doaj   +1 more source

OPTICAL SENSOR FOR SURFACE PROFILE MONITORING OF PARABOLIC ANTENNA FOR MILLIMETER AND SUBMILLIMETER ASTRONOMY

open access: yesRadio Physics and Radio Astronomy, 2016
Purpose: developing the sensor for non-contact measurement and profiling parabolic surfaces of antenna systems in the millimeter and submillimeter range with an aperture diameter up to 2 m.
D. L. Chechetkin   +4 more
doaj   +1 more source

Enhancing the spectral response of filled bolometer arrays for submillimeter astronomy

open access: yes, 2010
The future missions for astrophysical studies in the submillimeter region will need detectors with very high sensitivity and large field of view. Bolometer arrays can fulfill these requirements over a very broad band. We describe a technique that enables
Agnèse, Patrick   +2 more
core   +1 more source

Spectroscopic Investigation of Synthetic Martian Analog Mineral Mixtures Relevant to Gale and Jezero Craters Exploration

open access: yesEarth and Space Science, Volume 12, Issue 8, August 2025.
Abstract We produced several mineral mixtures and measured their reflectance in the VNIR range (350–2,500 nm) with the aim of reproducing the spectral features observed by the rovers Perseverance and Curiosity in the Jezero and Gale Crater respectively.
E. Bruschini   +6 more
wiley   +1 more source

SCUBADive. I. JWST+ALMA Analysis of 289 Submillimeter Galaxies in COSMOS-web

open access: yesThe Astrophysical Journal
JWST has enabled detecting and spatially resolving the heavily dust-attenuated stellar populations of submillimeter galaxies, revealing detail that was previously inaccessible.
Jed McKinney   +38 more
doaj   +1 more source

Early Days of SIS Receivers [PDF]

open access: yes, 2009
The modern era of millimeter and submillimeter spectral line observations and interferometry started at end of the 1979 with the invention of the Superconductor-Insulator-Superconductor (SIS) mixer.
Woody, D. P.
core  

ALMA Observations of SPT-Discovered, Strongly Lensed, Dusty, Star-Forming Galaxies

open access: yes, 2013
We present Atacama Large Millimeter/submillimeter Array (ALMA) 860 micrometer imaging of four high-redshift (z=2.8-5.7) dusty sources that were detected using the South Pole Telescope (SPT) at 1.4 mm and are not seen in existing radio to far-infrared ...
Aguirre, J. E.   +66 more
core   +1 more source

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