Results 151 to 160 of about 8,356 (263)

SALT's Venture into Near Infrared Astronomy with RSS-NIR [PDF]

open access: yesProceedings of SALT Science Conference 2015 — PoS(SSC2015), 2016
openaire   +1 more source

Missing Summer Westerly Jet Barotropic Governor Effect Explains Climate Models—Observation Discrepancies in the Indian Monsoon Trends

open access: yesAGU Advances, Volume 7, Issue 3, June 2026.
Abstract The South Asian summer monsoon has exhibited a pronounced Northwest India‐Indo‐Gangetic Plains rainfall dipole since 1999, with northwest India experiencing a 24.6% increase, while rainfall in the Indo‐Gangetic Plain has decreased by 4.4%.
Nimmakanti Mahendra   +5 more
wiley   +1 more source

α Centauri A in the far infrared*: First measurement of the temperature minimum of a star other than the Sun [PDF]

open access: yes, 2013
Context. Chromospheres and coronae are common phenomena on solar-type stars. Understanding the energy transfer to these heatedatmospheric layers requires direct access to the relevant empirical data.
Carlos del Burgo Díaz
core  

A Spectroscopic Analysis of the Ionizing Photon Production Efficiency in JADES and CEERS: Implications for the Ionizing Photon Budget

open access: yesThe Astrophysical Journal
We have used a combined sample of JADES and CEERS objects in order to constrain ionizing photon production efficiency ( ξ _ion ) from JWST/NIRSpec and JWST/NIRCam data. We examine 163 objects at 1.06 
Anthony Pahl   +8 more
doaj   +1 more source

Nitric Oxide Intensification Associated With STEVE: TIMED/SABER‐REGO Observations and Comparison With GITM Simulation

open access: yesAGU Advances, Volume 7, Issue 3, June 2026.
Abstract Strong Thermal Emission Velocity Enhancement (STEVE) is a nightsky optical phenomenon of great research interest in recent years. STEVE is recognized to be co‐located with a latitudinally narrow channel of fast westward ion drifts, also known as “subauroral ion drifts” (SAID).
Jun Liang   +7 more
wiley   +1 more source

Aerial and Space‐Borne Seismology on Venus: Viability and Design Implications for Future Missions

open access: yesEarth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Venus' evolution remains a mystery because of the lack of in situ geophysical data to constrain its interior structure. Recently‐selected planetary missions VERITAS (NASA), DAVINCI+ (NASA), and EnVision (ESA) will investigate the planet's interior, surface, and atmospheric chemistry.
Quentin Brissaud   +9 more
wiley   +1 more source

Lyα Profile Shape as an Escape-fraction Diagnostic at High Redshift

open access: yesThe Astrophysical Journal
While the shape of the Ly α profile is viewed as one of the best tracers of ionizing-photon escape fraction ( f _esc ) within low-redshift ( z ∼ 0.3) surveys of the Lyman continuum, this connection remains untested at high redshift. Here, we combine deep,
Anthony Pahl   +5 more
doaj   +1 more source

Comparing v11.2 OCO‐2 and v11 OCO‐3 XCO2 ${\mathbf{X}}_{{\text{CO}}_{\mathbf{2}}}$ Retrievals With Ground‐Based COCCON Measurements

open access: yesEarth and Space Science, Volume 13, Issue 6, June 2026.
Abstract The Orbiting Carbon Observatory‐2 and ‐3 (collectively termed “OCO‐2/3,” hereafter) missions, together, provide precise and accurate global data records that contribute to a better understanding of the variability in atmospheric carbon dioxide (CO2).
Saswati Das   +76 more
wiley   +1 more source

Zonal Winds in Titan’s Middle Atmosphere from a Stellar Occultation Observed with Keck Adaptive Optics

open access: yesThe Planetary Science Journal
We present spatially resolved Keck/NIRC2 images of a stellar occultation by Titan on 2022 September 5 and compare them to predictions from concurrent Atacama Large Millimeter/submillimeter Array (ALMA) observations and a suite of general circulation ...
Theresa C. Marlin   +11 more
doaj   +1 more source

Spectral‐Resolved Light at Night: TEMPO Observations and Background Correction

open access: yesEarth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Artificial Light at Night (ALAN) poses risks to public health and ecosystems. While long‐term remote sensing has tracked global nighttime light, spectrally resolved light at night (spectral light at night (SLAN)) data from geostationary orbit only became available with NASA's Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission. Its
Zhixin Xue   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy