Results 121 to 130 of about 909,763 (253)

Quantifying Nighttime Gravity Wave‐Driven Mesosphere‐Ionosphere Coupling Over CONUS Using NASA AWE Radiance and GNSS TEC Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary   +1 more
wiley   +1 more source

Infrared Astronomy from La Silla (for skeptics)

open access: yes, 2019
ESO has been offering since ~1980 until today, almost uninterrupted, state of the art thermal IR facility class instrumentation to its community. I will give a short overview of instrumentation for mid infrared astronomy in use on LaSilla up to to ...
Kaeufl, Ulli (6840221), Kaeufl, Ulli
core   +1 more source

NEOWISE Data Processing and Color Corrections for Near-Earth Asteroid Observations

open access: yesThe Planetary Science Journal
The Wide-field Infrared Survey Explorer and NEOWISE missions are a key source of thermal data for near-Earth asteroids (NEAs). These missions, which utilized a space-based platform in Earth orbit, produced thermal images across four different wavelength ...
Samuel A. Myers   +6 more
doaj   +1 more source

Quasi‐Homologous Solar Flares and Impacts on Thermospheric Density and Satellite Orbital Drag

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Quasi‐Homologous Flaring (QHF) activity from active regions on the Sun releases intense electromagnetic radiation in recurrent bursts over extended periods. In this letter, we present the effects of recurrent impulsive extreme ultraviolet (EUV) heating on thermospheric neutral density and the resulting atmospheric drag on satellites based on ...
S. Tulasi Ram   +8 more
wiley   +1 more source

MEGA Mass Assembly with JWST: The MIRI EGS Galaxy and Active Galactic Nucleus Survey

open access: yesThe Astronomical Journal
We present the Mid-Infrared Instrument (MIRI) Extended Groth Strip (EGS) Galaxy and Active Galactic Nucleus (MEGA) survey, a four-band MIRI survey with 25 pointings in the EGS extragalactic field.
Bren E. Backhaus   +10 more
doaj   +1 more source

Tropical Ocean Evaporation‐Temperature Sensitivity to Surface Radiative Property Perturbations in Fully Coupled CESM2

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Tropical ocean evaporation is the dominant source of moisture for global precipitation. However, the dependence of evaporation‐temperature sensitivity on ocean surface radiative properties has not been quantified in the fully coupled modeling framework.
Jian Wei, Ping Yang, Ping Chang
wiley   +1 more source

Toward On‐Chip Nascent All‐van‐der‐Waals Polarization Optical Elements for Nanoscale Photonic Applications

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
Twisted ReSe2/α−MoO3 van der Waals heterostructures pave the way towards next‐generation polarization nanophotonic applications, where combining two biaxial layers—a triclinic source of linearly polarized emission and an orthorhombic polarization‐conversion slab—establishes a practical route for fully integrated on‐chip all‐van der Waals polarization ...
Dmitrii Litvinov   +12 more
wiley   +1 more source

New Concepts for Far-Infrared and Submillimeter Space Astronomy

open access: yes, 2004
The Second Workshop on New Concepts for Far-Infrared and Submillimeter Space Astronomy aimed to highlight the groundbreaking opportunities available for astronomical investigations in the far-infrared to submillimeter using advanced, space-based ...
Leisawitz, David T., Benford, Dominic J.
core  

Ultra‐Weak Photon Emission as a By‐Product of Mitochondrial Oxidative Metabolism: Mechanisms, Limits, and Implications

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
Mitochondrial oxidative metabolism generates ROS. Downstream chemiexcitation triplet carbonyls, singlet oxygen; produces ultra‐weak photon emission (UPE). Energetic bounds restrict well‐coupled respiration to extremely weak, red/NIR‐biased emission. Stronger visible UPE indicates elevated oxidative flux, linking measured photon counts to redox state ...
Samuel Crowther   +2 more
wiley   +1 more source

Community Plan for Far-Infared/Submillimeter Space Astronomy

open access: yes, 2003
The consensus of attendees at the Second Workshop on New Concepts for Far-Infrared/Submillimeter Space Astronomy is that the Single Aperture Far-IR telescope (SAFIR), a cooled spaceborne observatory, is important for the future of far-infrared astronomy.
Leisawitz, David, Oegerle, William
core  

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