Results 81 to 90 of about 3,068 (209)

Comparative Processes in Planetary Magnetospheres

open access: yes, 2022
The Solar System is gifted with a diverse array of magnetospheric systems, from the familiar Dungey-cycle-driven system at Earth, to the extreme Vasyliunas-cycle-driven Gas Giants.
Mauk, Barry   +9 more
core  

The Future of NASA's Deep Space Network and Applications to Planetary Probe Missions

open access: yes, 2010
NASA's Deep Space Network (DSN) has been an invaluable tool in the world's exploration of space. It has served the space-faring community for more than 45 years.
Vrotsos, Peter   +2 more
core  

Archimedean Spiral Distribution of Energetic Particles in Earth's Inner Radiation Belt

open access: yesGeophysical Research Letters
Archimedean spirals are common in various fields such as biology, engineering, astronomy, and space physics. Here we report the discovery of patterns resembling the general Archimedean spirals in particle distributions in the Earth radiation belt.
Weiqin Sun   +7 more
doaj   +1 more source

Antenna Elements Integrated into the Parachutes of Planetary Entry Probes

open access: yes, 2008
This presentation was part of the session : Ongoing and Proposed EDL Technology DevelopmentSixth International Planetary Probe WorkshopThe canopy of the parachutes of planetary entry probes may be used to integrate elements of the antennas in charge of ...
Guidi, Rodolfo   +3 more
core  

Planetary Entry Probes and Mass Spectroscopy: Tools and Science Results from In Situ Studies of Planetary Atmospheres and Surfaces

open access: yes, 2007
Probing the atmospheres and surfaces of the planets and their moons with fast moving entry probes has been a very useful and essential technique to obtain in situ or quasi in situ scientific data (ground truth) which could not otherwise be obtained from ...
Niemann, Hasso B.
core  

Current to moving spherical and cylindrical electrostatic probes

open access: yes, 1971
Current collection characteristics of moving cylindrical and spherical electrostatic probes applied to velocities in earth satellites and planetary ...
Wharton, L. E., Hoegy, W. R.
core  

Probing Extrasolar Planetary Systems with Interstellar Meteors

open access: yes, 2019
5 pages, 2 figures, submitted to ApJL.
Siraj, Amir, Loeb, Abraham
openaire   +2 more sources

Infrared emission lines in planetary nebulae

open access: yes, 1982
Infrared spectroscopy was used to detect many forbidden fine structure emission lines in planetary nebulae. Measurements of these lines offer sensitive probes of the physical conditions and ionization structure, and lead to improved abundance ...
Dinerstein, H. L.
core  

Planetary Nebulae Beyond the Milky Way

open access: yes, 2006
In the last decade extra-galactic planetary nebulae (PNe) have gained increasing importance. Improved observational capabilities have allowed fainter and fainter PNe to be studied in galaxies well beyond the Milky Way.
Walsh, J. R   +5 more
core   +1 more source

Meridional Circulation Molecular-weighted

open access: yesThe Astrophysical Journal
Meridional circulation in stratified stellar/planetary interiors in the presence of stable molecular-weight gradients remains poorly understood, thereby affecting angular momentum transport in evolutionary models. We extend the downward control principle
Deepayan Banik   +2 more
doaj   +1 more source

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