EDP Sciences
Free Access
Issue
A&A
Volume 431, Number 3, March I 2005
Page(s) 1123 - 1127
Section Planets and planetary systems
DOI https://doi.org/10.1051/0004-6361:20041800


A&A 431, 1123-1127 (2005)
DOI: 10.1051/0004-6361:20041800

Flux of meteoroid impacts on Mercury

S. Marchi1, A. Morbidelli2 and G. Cremonese

3

1  Dipartimento di Astronomia, Vicolo dell'Osservatorio 2, 35122 Padova, Italy
    e-mail: marchi@pd.astro.it
2  Observatoire de la Côte d'Azur, Nice, France
    e-mail: alessandro.morbidelli@obs-nice.fr
3  INAF - Osservatorio Astronomico di Padova, 35122 Padova, Italy
    e-mail: cremonese@pd.astro.it



(Received 5 August 2004 / Accepted 18 October 2004 )

Abstract
In this work we present a new estimate of the meteoroid flux on Mercury. The flux has been obtained as a result of material delivery from both the 3:1 and  $\nu_6$ resonances, and calibrated on the basis of the Earth meteoroid flux. Our model does not take into account non-gravitational forces, like the Poynting-Robertson effect, and for this reason it is suitable for bodies having dimension greater than about 1 cm. We also analyse the dependence of the predicted impactor flux on Mercury on meteoroid size. Possible asymmetries of the meteoroid flux over the surface (morning/evening hemispheres) and along the orbit (perihelion/aphelion) are also discussed.


Key words: planets and satellites: individual: Earth -- planets and satellites: individual: Mercury -- meteors, meteoroids





© ESO 2005

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.