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Performance of thermal conductivity probes for planetary applications [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2012
This work aims to contribute to the development of in situ instruments feasible for space application. Commercial as well as custom-made thermal sensors, based on the transient hot wire technique and suitable for direct measurement of the effective ...
E. S. Hütter, N. I. Kömle
doaj   +5 more sources

Unique conjunction of planetary probes [PDF]

open access: yesEos, Transactions American Geophysical Union, 2000
The last two of the large planetary probes of the National Aeronautic and Space Administration and the European Space Agency will rendezvous at the end of the year at Jupiter. At that time, Galileo, which has been exploring Jupiter since the end of 1995, and Cassini, which is on its way to Saturn, will simultaneously observe the Jovian system with U.S.‐
E. Grün   +3 more
openaire   +2 more sources

Optical Navigation Method and Error Analysis for the Descending Landing Phase in Planetary Exploration

open access: yesAerospace, 2022
To solve the problem of high-precision optical navigation for the descent landing of lunar and planetary probes, an optical navigation method based on the spatial position distribution model is proposed.
Rongjun Mu   +3 more
doaj   +2 more sources

PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). IV. High-resolution Phased-resolved Spectroscopy of the Ultra-hot-Jupiter KELT-20 b [PDF]

open access: yesThe Astronomical Journal
We present five datasets of high-resolution optical emission spectra of the ultra-hot-Jupiter KELT-20 b with the PEPSI spectrograph. Using a Bayesian retrieval framework, we constrain its dayside pressure–temperature profile and abundances of Fe, Ni, and
Victoria Bonidie   +9 more
doaj   +2 more sources

Galactic Planetary Nebulae as Probes of Radial Metallicity Gradients and Other Abundance Patterns [PDF]

open access: yesAstrophysical Journal, 2018
We use planetary nebulae (PNe) as probes to determine the Galactic radial oxygen gradients and other abundance patterns. We select data homogeneously from recent data sets, including PNe at large Galactocentric distances.
L. Stanghellini, M. Haywood
semanticscholar   +1 more source

Horizontal spreading of planetary debris accreted by white dwarfs [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2021
White dwarfs with metal-polluted atmospheres have been studied widely in the context of the accretion of rocky debris from evolved planetary systems. One open question is the geometry of accretion and how material arrives and mixes in the white dwarf ...
T. Cunningham   +10 more
semanticscholar   +1 more source

Surviving in Ocean Worlds: Experimental Characterization of Fiber Optic Tethers across Europa-like Ice Faults and Unraveling the Sliding Behavior of Ice

open access: yesThe Planetary Science Journal, 2023
As an initial step toward in situ exploration of the interiors of Ocean Worlds to search for life using cryobot architectures, we test how various communication tethers behave under potential Europa-like stress conditions.
Vishaal Singh   +7 more
doaj   +1 more source

Subsurface Science and Search for Life in Ocean Worlds

open access: yesThe Planetary Science Journal, 2023
Several worlds in our solar system are thought to hold oceans of liquid water beneath their frozen surfaces. These subsurface ice and ocean environments are promising targets in the search for life beyond Earth, but they also present significant new ...
Justin D. Lawrence   +20 more
doaj   +1 more source

Highlight Advances in Planetary Physics in the Solar System: In Situ Detection Over the Past 20 Years

open access: yesSpace: Science & Technology, 2023
Planetary science is the science of studying planets, moons, and planetary systems. The scale of the research objects ranges from small meteoroids to large gas giant planets, and the research purpose is to determine their composition, dynamics, formation,
Yixin Sun   +3 more
doaj   +1 more source

Influence of probe geometry on measurement results of non-ideal thermal conductivity sensors [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2016
The thermal properties of the surface and subsurface layers of planets and planetary objects yield important information that allows us to better understand the thermal evolution of the body itself and its interactions with the environment.
P. Tiefenbacher   +3 more
doaj   +1 more source

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