Simon Jeanne

Catastrophic disruption of asteroid 2023 CX1 and implications for planetary defence

Auriane Egal, Denis Vida, F. Colas, B. Zanda et autres

ca, fr, at, ro, be, es, gb, Sénégal, it, us, de, cl, ar, Maroc, cz, au, hu, nl, ch, sk, gr, ir (code pays fourni par la source)

Source regions of carbonaceous meteorites and near-Earth objects

M. Brož, Pierre Vernazza, Michaël Marsset, Richard P. Binzel et autres

Context. The source regions of ordinary chondrites (~80% of all falls) and large S-type near-Earth objects (NEOs; ~30%) have recently been identified with three young asteroid families (Karin, Koronis, Massalia) being at the origin of most ordinary chondrite falls. Aims. The present …

Source regions of carbonaceous meteorites and NEOs

M. Brož, Pierre Vernazza, Michaël Marsset, Richard P. Binzel et autres

The present work aims to determine the source regions of carbonaceous chondrites (CM, CI, CO, CV, CK, CR, CH, CB, or C-ungrouped). We studied 38 individual asteroid families, including young and old ones, and determined their contributions to the NEO populations at …

The Winchcombe meteorite, a unique and pristine witness from the outer solar system

A. J. King, Luke Daly, James B. Rowe, K. H. Joy et autres

Direct links between carbonaceous chondrites and their parent bodies in the solar system are rare. The Winchcombe meteorite is the most accurately recorded carbonaceous chondrite fall. Its pre-atmospheric orbit and cosmic-ray exposure age confirm that it arrived on Earth shortly after ejection …

gb, au, ca, fr, sk, it, us, hu, in (code pays fourni par la source)

Energy signature of ton TNT-class impacts: analysis of the 2018 December 22 fireball over Western Pyrenees

Simon Anghel, Esther Drolshagen, T. Ott, Mirel Birlan et autres

ABSTRACT The increase in detector sensitivity and availability in the past three decades has allowed us to derive knowledge of the meteoroid flux and impact energy into the Earth’s atmosphere. We present the multi-instrument detected 2018 December 22 fireball over Western Pyrenees, …

fr, ro, de, nl, es (code pays fourni par la source)

Luminous efficiency based on FRIPON meteors and limitations of ablation models

Esther Drolshagen, T. Ott, D. Koschny, G. Drolshagen et autres

Context. In meteor physics, the luminous efficiency τ is used to convert the meteor’s magnitude to the corresponding meteoroid’s mass. However, a lack of sufficiently accurate verification methods or adequate laboratory tests mean that discussions around this parameter are a subject of …

de, nl, fr, ro, it, ca, es, be, at, gb (code pays fourni par la source)

Luminous efficiency of meteors derived from ablation model after assessment of its range of validity

Esther Drolshagen, T. Ott, D. Koschny, G. Drolshagen et autres

Context.The luminous efficiency,τ, can be used to compute the pre-atmospheric masses of meteoroids from corresponding recorded meteor brightnesses. The derivation of the luminous efficiency is non-trivial and is subject to biases and model assumptions. This has led to greatly varying results in …

de, nl, fr, ro, it, ca, es, be, at, gb (code pays fourni par la source)

Test de DIAFnostic, application mobile sur la croissance d’arbres agroforestiers : Soutenance PEI n°23

Jade Boucher, Simon Jeanne, Fatoumata Sy, Reva Viaud

fr (code pays fourni par la source)

FRIPON: A worldwide network to track incoming meteoroids

F. Colas, B. Zanda, Sylvain Bouley, Simon Jeanne et autres

Context. Near-Earth objects (NEOs) are the most accessible small Solar System bodies by both spacecrafts and ground-based telescopes. Close encounters of these objects with Earth represent opportunities to characterize their physical and mineralogical properties. They are also a constant threat to humanity …

fr, be, it, ro (code pays fourni par la source)

Luminous efficiency determination and its challenges

Esther Drolshagen, T. Ott, D. Koschny, G. Drolshagen et autres

FRIPON: A worldwide network to track incoming meteoroids

Francis Colas, B. Zanda, Sylvain Bouley, Simon Jeanne et autres

Context: Until recently, camera networks designed for monitoring fireballs worldwide were not fully automated, implying that in case of a meteorite fall, the recovery campaign was rarely immediate. This was an important limiting factor as the most fragile - hence precious - …

fr, de (code pays fourni par la source)

Cavezzo, the first Italian meteorite recovered by the PRISMA fireball network. Orbit, trajectory, and strewn-field

D. Gardiol, D. Barghini, A. Buzzoni, A. Carbognani et autres

ABSTRACT Two meteorite pieces have been recovered in Italy, near the town of Cavezzo (Modena), on 2020 January 4th. The associated fireball was observed on the evening of New Year’s Day 2020 by eight all-sky cameras of the PRISMA fireball network, a …

it, fr, be (code pays fourni par la source)