Results 21 to 30 of about 599,165 (331)

Source regions of carbonaceous meteorites and near-Earth objects [PDF]

Astronomy & Astrophysics
The source regions of ordinary chondrites (sim 80 of all falls) and large S-type near-Earth objects (NEOs; sim 30) have recently been identified with three young asteroid families (Karin, Koronis, Massalia) being at the origin of most ordinary chondrite ...
M. Brovz, P. Vernazza, M. Marsset, R. Binzel, F. DeMeo, M. Birlan, F. Colas, S. Anghel, S. Bouley, C. Blanpain, J. Gattacceca, S. Jeanne, L. Jorda, J. Lecubin, A. Malgoyre, A. Steinhausser, J. Vaubaillon, B. Zanda   +17 more
semanticscholar   +1 more source

A Single Ejection Model of the DART/Dimorphos Debris Trail

The Astrophysical Journal Letters, 2023
The collision of the NASA DART spacecraft with asteroid Dimorphos resulted in the formation of a distinctive and long-lived debris trail, formed by the action of solar radiation pressure on ejected particles.
Yoonyoung Kim, David Jewitt
doaj   +1 more source

Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect

The Astrophysical Journal, 2023
The Yarkovsky effect causes the semimajor axis drift of near-Earth asteroids. The drift can be detected by a precise orbit determination process. Using the proposed algorithm, 2233 out of 27,078 near-Earth asteroids are chosen as the initial candidates ...
Xin Liu, Xi-Yun Hou, Zhi-Tao Yang, Qing-Bo Gan, Yao Zhang   +4 more
doaj   +1 more source

Constraining the Shape Distribution of Near-Earth Objects from Partial Light Curves [PDF]

Astronomical Journal, 2019
In the absence of dense photometry for a large population of near-Earth objects (NEOs), the best method of obtaining a shape distribution comes from sparse photometry and partial light curves.
A. McNeill, J. Hora, A. Gustafsson, D. Trilling, Michael Mommert   +4 more
semanticscholar   +1 more source

Preatmospheric Detection of a Meter-sized Earth Impactor

The Planetary Science Journal, 2023
On 2020 September 18 U.S. Government (USG) sensors detected a bolide with peak bolometric magnitude of −19 over the Western Pacific. The impact was also detected by the Geostationary Lightning Mapper instrument on the GOES-17 satellite and infrasound ...
David L. Clark, Paul A. Wiegert, Peter G. Brown, Denis Vida, Aren Heinze, Larry Denneau   +5 more
doaj   +1 more source

The study of near Earth objects and meteor showers

Journal of Physics: Conference Series, 2020
In this work, the physical parameters of near-Earth objects (NEO), i.e. small celestial bodies crossing the Earth’s orbit, are investigated. First of all, the study of NEO, whose number exceeds 15 thousand, is important in terms of asteroid threats.
M. Sergienko, M. Sokolova, A. Andreev, Y. Nefedyev   +3 more
semanticscholar   +1 more source

Spitzer Albedos of Near-Earth Objects [PDF]

Astronomical Journal, 2019
Thermal infrared observations are the most effective way to measure asteroid diameter and albedo for a large number of near-Earth objects (NEOs). Major surveys like NEOWISE, NEOSurvey, ExploreNEOs, and NEOLegacy find a small fraction of high albedo ...
A. Gustafsson, D. Trilling, Michael Mommert, A. McNeill, J. Hora, H. Smith, S. Hellmich, S. Mottola, A. Harris   +8 more
semanticscholar   +1 more source

Evidence-based robust design of deflection actions for near Earth objects [PDF]

, 2012
This paper presents a novel approach to the robust design of deflection actions for Near Earth Objects (NEO). In particular, the case of deflection by means of Solar-pumped Laser ablation is studied here in detail. The basic idea behind Laser ablation is
Gibbings, Alison, Vasile, Massimiliano, Zuiani, Federico   +2 more
core   +2 more sources

A differential algebra-based importance sampling method for impact probability computation on Earth resonant returns of near-Earth objects [PDF]

Monthly notices of the Royal Astronomical Society, 2018
A differential algebra based importance sampling method for uncertainty propagation and impact probability computation on the first resonant returns of Near Earth Objects is presented in this paper.
M. Losacco, Pierluigi Di Lizia, R. Armellin, A. Wittig   +3 more
semanticscholar   +1 more source

Unconfirmed Near-Earth Objects [PDF]

Astronomical Journal, 2018
We studied the Near-Earth Asteroid (NEA) candidates posted on the Minor Planet Center’s Near-Earth Object Confirmation Page (NEOCP) between years 2013 and 2016.
P. Veres, M. Payne, M. Holman, D. Farnocchia, G. Williams, S. Keys, Ian Boardman   +6 more
semanticscholar   +1 more source