Results 71 to 80 of about 19,918 (257)
Main-oval Auroral Emission from a T6 Brown Dwarf: Observations, Modeling, and Astrometry
The Astrophysical JournalFrom a series of 5 GHz Very Long Baseline Array (VLBA) radio observations taken over a 1 yr span, we present the detection of compact, highly polarized radio emission from the T6 brown dwarf WISE J112254.72+255022.2, compatible with electron cyclotron ...
J. C. Guirado +5 more
doaj +1 more source
The Untrue Island Re-visited: Three Encounters with Orford Ness
American and British Studies AnnualThe present paper deals with three texts inspired by the topography and secretive military history of the East Anglian offshore shingle spit Orford Ness. Each may be considered a specific example of a hybrid genre.
Magdalena Potočňáková
doaj +1 more source
RioM‐1: A New Calcite Reference Material for U‐Pb LA‐ICP‐MS Geochronology
Geostandards and Geoanalytical Research, Volume 50, Issue 1, Page 181-199, March 2026.Key Points RioM‐1 calcite was characterised for trace elements, U‐Pb geochronology, Sr and O isotopes using ID‐TIMS, LA‐ICP‐MS and SIMS. U‐Pb dates from ID‐TIMS and LA‐ICP‐MS across several independent laboratories returned identical results within uncertainty.
Marco Silva +10 more
wiley +1 more source
Saturn orbiter mission study [PDF]
A preliminary analysis of the important aspects of missions orbiting the planet Saturn is provided. Orbital missions to Saturn is given serious consideration for the 1980's, or after flybys by Pioneer 10/G and Mariner Jupiter-Saturn 1977.
Sullivan, R. J., Wells, W. C.
core +1 more source
JWST Discovers the Vertical Structure of Uranus' Ionosphere
Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.Abstract On 19 January 2025, the James Webb Space Telescope (JWST) program # $\mathrm{\#}$5073 observed Uranus for almost a full rotation with NIRSpec. We present the first ever vertical ionospheric profiles of H3+ ${\mathrm{H}}_{3}^{+}$ temperature, volumetric density and total emission.
Paola I. Tiranti +7 more
wiley +1 more source
Current Events at Saturn: Ring–Planet Electromagnetic Coupling
The Planetary Science JournalThis study presents a synthesized analysis of in situ and ground-based observations to investigate electromagnetic coupling between Saturn and its rings. During the Cassini Grand Finale, the magnetometer detected gradients in the azimuthal magnetic field
Omakshi Agiwal +6 more
doaj +1 more source
The upcoming Mariner Jupiter-Saturn '77 space project is discussed. The variations in radar and radio observations are evaluated, along with particle distribution within the Saturn ...
Palluconi, F. D., Pettengill, G. H.
core +1 more source
Microconcentrator Solar Panel Architectures Achieving High Specific Power for Deep Space Missions
Solar RRL, Volume 10, Issue 4, 26 February 2026.Microconcentrator photovoltaics (microCPV) are emerging as a promising solution for powering spacecraft in deep space, where conventional solar arrays are challenged by extremely low‐intensity, low‐temperature conditions. This work presents the design, development, and characterization of two optical architectures aiming at maximizing specific power (W/
Guido Vallerotto +8 more
wiley +1 more source
The Bombardment History of the Giant Planet Satellites
The Planetary Science JournalThe origins of the giant planet satellites are debated, with scenarios including formation from a protoplanetary disk, sequential assembly from massive rings, and recent accretion after major satellite–satellite collisions.
William F. Bottke +9 more
doaj +1 more source
The Sisyphus particle detector [PDF]
The particle measurement subsystem planned for the MJS 77 mission is described. Scientific objectives with respect to Saturn's rings are as follows: (1) measure particles outside the visible rings, including particulates orbiting in more distant rings ...
Soberman, R. K.
core +1 more source