output
19932026
Showing 2012 · astro-ph.EPShow all

11 papers · 2 filters

astro-ph.EP2012★ 34 cited

An upper limit for the water outgassing rate of the main-belt comet 176P/LINEAR observed with Herschel/HIFI

M. de Val-Borro, L. Rezac, P. Hartogh +15

176P/LINEAR is a member of the new cometary class known as main-belt comets (MBCs). It displayed cometary activity shortly during its 2005 perihelion passage that may be driven by…

astro-ph.EP2012★ 9 cited

Submillimetric spectroscopic observations of volatiles in comet C/2004 Q2 (Machholz)

M. de Val-Borro, P. Hartogh, C. Jarchow +6

We aim to determine the production rates of several parent and product volatiles and the 12C/13C isotopic carbon ratio in the long-period comet C/2004 Q2 (Machholz), which is likel…

astro-ph.EP2012★ 255 cited

A chemical model for the atmosphere of hot Jupiters

Olivia Venot, Eric Hébrard, Marcelino Agùndez +5

Our purpose is to release a chemical network, and the associated rate coefficients, developed for the temperature and pressure range relevant to hot Jupiters atmospheres. Using thi…

astro-ph.EP2012★ 32 cited

Chemical differentiation of planets: a core issue

Herve Toulhoat, Viacheslav Zgonnik

By plotting empirical chemical element abundances on Earth relative to the Sun and normalized to silicon versus their first ionization potentials, we confirm the existence of a cor…

astro-ph.EP2012★ 43 cited

Impact cratering on Mercury: consequences for the spin evolution

Alexandre C. M. Correia, Jacques Laskar

Impact basins identified by Mariner 10 and Messenger flyby images provide us a fossilized record of the impactor flux of asteroids on Mercury during the last stages of the early So…

astro-ph.EP2012★ 25 cited

Nano dust impacts on spacecraft and boom antenna charging

Filippo Pantellini, Soraya Belheouane, Nicole Meyer-Vernet +1

High rate sampling detectors measuring the potential difference between the main body and boom antennas of interplanetary spacecraft have been shown to be efficient means to measur…

astro-ph.EP2012★ 3 cited

Constraining multiple systems with GAIA

L. Beauvalet, V. Lainey, J. -E. Arlot +3

GAIA will provide observations of some multiple asteroid and dwarf systems. These observations are a way to determine and improve the quantification of dynamical parameters, such a…

astro-ph.EP2012★ 54 cited

"TNOs are Cool": A survey of the trans-Neptunian region -- VII. Size and surface characteristics of (90377) Sedna and 2010 EK139

András Pál, Csaba Kiss, Thomas G. Müller +14

We present estimates of the basic physical properties (size and albedo) of (90377) Sedna, a prominent member of the detached trans-Neptunian object population and the recently disc…

astro-ph.EP2012★ 102 cited

"TNOs are Cool": A survey of the trans-Neptunian region VI. Herschel/PACS observations and thermal modeling of 19 classical Kuiper belt objects

E. Vilenius, C. Kiss, M. Mommert +20

Trans-Neptunian objects (TNO) represent the leftovers of the formation of the Solar System. Their physical properties provide constraints to the models of formation and evolution o…

astro-ph.EP2012★ 588 cited

One or more bound planets per Milky Way star from microlensing observations

A. Cassan, D. Kubas, J. -P. Beaulieu +39

Most known extrasolar planets (exoplanets) have been discovered using the radial velocity or transit methods. Both are biased towards planets that are relativ…

astro-ph.EP2012

Evaporation of extrasolar planets

A. Lecavelier des Etangs

This article presents a review on the observations and theoretical modeling of the evaporation of extrasolar planets. The observations and the resulting constraints on the upper at…