Results 31 to 40 of about 1,980 (216)

The Rosetta campaign to detect an exosphere at Lutetia

, 2012
On 10th July 2010 the Rosetta spacecraft passed within 3160 km of asteroid 21 Lutetia during which seven instruments attempted to detect an exosphere. A comparison of the sensitivity is made between the different instruments based on a simple spherical ...
Retherford, K.D., Auster, H.U., Wright, I., Richter, I., Galand, M., A'Hearn, M.F., Lee, S., Morse, A. D., Gulkis, S., Carr, C.M., Andrews, D., Stern, S., AHearn, M., Parker, J., Wright, I.P., Stern, S. A., A'Hearn, M. F., Morse, A., Weaver, H. A., Morse, A.D., Stern, S.A., Carr, C. M., Auster, H., Retherford, K., Andrews, D. J., Auster, H. U., Weaver, H., Feldman, P., Carr, C., Retherford, K. D., Weaver, H.A., Wright, I. P., Andrews, D.J., Goesmann, F., Altwegg, K., Sheridan, S.   +35 more
core   +1 more source

The Interplay of Surface Composition, Mineralogy, and Physical Conditions That Affect the Surface Release Processes and Particle Environment of Mercury

The Planetary Science Journal
Mercury has a very tenuous atmosphere starting at the surface, which is referred to as a surface-bound exosphere, where there are no collisions between exospheric particles.
Peter Wurz, Noah Jäggi, André Galli, Audrey Vorburger, Deborah Domingue, Paul S. Szabo, Johannes Benkhoff, Océane Barraud, Daniel Wolf Savin   +8 more
doaj   +1 more source

Authoring Terrestrial Planets with Diffusion Models

Computer Graphics Forum, EarlyView.
Abstract To support the design and subsequent generation of terrestrial planets for use in the creative media, we propose a solution that employs a generative model trained on satellite data from planetary bodies with a defined solid surface, such as the Earth and Mars.
Oliver Borg, James Gain, Éric Guérin, Adrien Peytavie, Marie‐Paule Cani, Eric Galin, Guillaume Cordonnier   +6 more
wiley   +1 more source

Thermosphere and exosphere of hot Jupiters [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractHere we describe the observations and the resulting constraints on the upper atmosphere (thermosphere and exosphere) of hot Jupiters. In particular, observations and theoretical modeling of hot-Jupiter evaporation are described. The observations allowed the discovery that the planet orbiting HD209458 has an extended atmosphere of escaping ...
openaire   +2 more sources

Monte-Carlo simulation of Callisto's exosphere

, 2015
We model Callisto's exosphere based on its ice as well as non-ice surface via the use of a Monte-Carlo exosphere model. For the ice component we implement two putative compositions that have been computed from two possible extreme formation scenarios of ...
Barabash, S., Mousis, O., Wurz, Peter, Vorburger, Audrey Helena, Lammer, H., Wurz, P., Vorburger, A.   +6 more
core   +1 more source

Radiative transfer in the exosphere of Saturn's moon Titan [PDF]

, 2009
This work focuses on the distribution of atomic hydrogen in the exosphere of Saturns̉ moon Titan. This work is based on measurements performed by the Hydrogen Deuterium Absorption Cell (HDAC) aboard the Cassini spacecraft, that should directly determine ...
Hedelt, Pascal
core   +1 more source

A novel theoretical approach to predict the interannual variability of sulfur in Mercury’s exosphere and subsurface

Frontiers in Astronomy and Space Sciences
The surfaces of airless bodies are constantly weathered by ions, meteoroids, and radiation, leading to the ejection of surface atoms to form a tenuous, collisionless atmosphere around the body.
S. Verkercke, J. Y. Chaufray, F. Leblanc, A. Georgiou, M. S. Phillips, G. Munaretto, J. Lewis, A. Ricketts, L. Morrissey   +8 more
doaj   +1 more source

Argon‐40 in Lunar Exosphere: Observations From CHACE‐2 on Chandrayaan‐2 Orbiter

Geophysical Research Letters, 2021
We report the first observation of Argon‐40 (Ar‐40) in the mid latitude regions (−60° to +60°) of the lunar exosphere from CHandra’s Atmospheric Composition Explorer‐2 (CHACE‐2) experiment aboard Chandrayaan‐2 orbiter.
M. B. Dhanya, Smitha V. Thampi, Tirtha Pratim Das, R. Satheesh Thampi, Neha Naik, J. K. Abhishek, P. Sreelatha, P. Pradeepkumar, G. Padma Padmanabhan, B. Sundar, Dinakar Prasad Vajja, Amarnath Nandi, Vipin K. Yadav, M. Mohammed Nazeer, P. T. Lali, Rosmy John, A. V. Aliyas, Vijay Kumar Sen, M. Ram Prabhu, A. Ajay Krishna, Tarun K. Pant, Anil Bhardwaj   +21 more
doaj   +1 more source

Mercury's Eccentric Orbit as a Driver of Significant “Seasonal” Change in Upstream Solar Wind Forcing

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Mercury experiences the most intense and variable solar wind (SW) conditions in the solar system due to its close, eccentric orbit about the Sun. In addition to variation driven by coronal source and solar cycle, the SW arriving at Mercury varies periodically as the planet's heliocentric distance changes by over 50% per orbit.
Ryan M. Dewey, Caitriona Mary Jackman, Mathias Rojo, Lina Z. Hadid, Beatriz Sánchez‐Cano, Charles F. Bowers, Jim M. Raines, Susan T. Lepri, Stefano Livi, Jesse T. Coburn, Sae Aizawa, Yeimy J. Rivera, Weijie Sun, Jiutong Zhao, James A. Slavin, Daniel Heyner, Daragh M. Hollman, Alexander D. Shane   +17 more
wiley   +1 more source

Surface Exospheric Interactions

Space Science Reviews, 2023
AbstractGas-surface interactions at the Moon, Mercury and other massive planetary bodies constitute, alongside production and escape, an essential element of the physics of their gravitationally bound exospheres. From condensation and accumulation of exospheric species onto the surface in response to diurnal and seasonal changes of surface temperature,
Teolis, Ben, Sarantos, Menelaos, Schorghofer, Norbert, Jones, Brant, Grava, Cesare, MURA, Alessandro, Prem, Parvathy, Greenhagen, Ben, CAPRIA, MARIA TERESA, CREMONESE, Gabriele, LUCCHETTI, Alice, GALLUZZI, VALENTINA   +11 more
openaire   +2 more sources