Results 61 to 70 of about 8,179,295 (185)

Activity processes fuelling the Main Belt Comets characterized via a "Large Program" at ESO [PDF]

, 2012
A "Large Program" was set up on the ESO NTT on La Silla to characterize a set of Main Belt Comets.
Hainaut, O. R., Mueller, B. E. A., Tozzi, G. P., CARRARO, GIOVANNI, Hsieh, H., Boehnhardt, H., Kleyna, J., Meech, K. J., Protopapa, S., Licandro, J., Buie, M., Lowry, S., Snodgrass, C.   +12 more
core  

The location of Asteroidal Belt Comets (ABCs), in a comet’s evolutionary diagram : The Lazarus Comets [PDF]

, 2013
: There is a group of newly recognized asteroids in the main belt that are exhibiting cometary characteristics. We will call them Asteroidal Belt Comets or ABCs for short.
Cuartas Restrepo, Pablo Andrés, Zuluaga Callejas, Jorge Iván, Ferrín Vásquez, Ignacio Ramón   +2 more
core   +1 more source

Nongravitational Forces in Planetary Systems

The Planetary Science Journal
Nongravitational forces play surprising and, sometimes, centrally important roles in shaping the motions and properties of small planetary bodies. In the solar system, the morphologies of comets, the delivery of meteorites, and the shapes and dynamics of
David Jewitt
doaj   +1 more source

Ferric Chloride: The Venusian Unknown UV Absorber?

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Near‐ultraviolet imaging of the planet Venus reveals inhomogeneous absorption features in the otherwise bright clouds. This absorption has been studied for nearly 100 years, but identification of the near‐UV absorber remains one of the largest open questions in Venusian research.
Joanna V. Egan, Wuhu Feng, Alexander D. James, James Manners, Daniel R. Marsh, Sébastien Lebonnois, Franck Lefèvre, Aurélien Stolzenbach, John M. C. Plane   +8 more
wiley   +1 more source

Dynamics, Origin, and Activation of Main Belt Comets [PDF]

Proceedings of the International Astronomical Union, 2009
AbstractThe discovery of Main Belt Comets (MBCs) has raised many questions regarding the origin and activation mechanism of these objects. Results of a study of the dynamics of these bodies suggest that MBCs were formed in-situ as the remnants of the break-up of large icy asteroids.
openaire   +2 more sources

Uranus's Highly Nonaxisymmetric Magnetopause and Its Impact on Magnetic Reconnection

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Mass and energy fluxes from the solar wind can access a planet's magnetosphere through dayside magnetic reconnection. The plasma and magnetic field conditions on either side of the magnetopause determine whether reconnection is suppressed. However, magnetosheath conditions are sensitive to the shape of the magnetopause, and deviations from ...
Jack H. Crump, Ali H. Sulaiman, Xianzhe Jia, Sophia Zomerdijk‐Russell, Adam Masters   +4 more
wiley   +1 more source

OORT-Cloud and Kuiper-Belt Comets [PDF]

, 1998
This paper follows the broadly accepted theory that Oort-Cloud Comets originated in the Solar Nebula in the general region where the major planets, Jupiter and Saturn, were formed while the Kuiper-Belt Comets originated farther out where the temperatures
Whipple, Fred L.
core  

Bolide light curve systematics from 75 recovered meteorites

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2351-2392, September 2026.
Abstract How does the energy deposition profile (light curve), deceleration, and penetration depth in Earth's atmosphere depend on asteroid composition and meteorite type? Here, we present the light curve and velocity profile of 75 bolides from camera‐documented meteorite falls.
Peter Jenniskens, Stuart Pilorz, Darrel Robertson, Eric C. Stern   +3 more
wiley   +1 more source

Lucy Mission Search Plans for Activity around Its Jovian Trojan Flyby Targets

The Planetary Science Journal
Activity in small bodies, defined here as the episodic or continuous release of material, was long thought to be exclusively a behavior of comets, but it has since been discovered in some centaurs, main-belt asteroids, and near-Earth asteroids.
S. Alan Stern, Carly Howett, Neil Dello Russo, Harold A. Weaver, James F. Bell III, Dennis Reuter, Amy Simon, Hannah Kaplan, Keith Noll, John Spencer, Simone Marchi, Hal Levison   +11 more
doaj   +1 more source

Discrete Energy Bands Beyond Galilean Moons: Bounce‐Phase Structuring of Jovian Magnetospheric Particles

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Discrete energy bands of ion fluxes, typically organized in velocity with equal separations, have been frequently observed in Jupiter's magnetosphere either in association with Galilean moons or in regions far from their influence. Here, we focus on the latter type and propose that these bands are manifestations of bounce‐phase structuring ...
Ya‐Ze Wu, Xu‐Zhi Zhou, Ze‐Fan Yin, Yixin Sun, Chao Yue, Qiugang Zong   +5 more
wiley   +1 more source