Results 1 to 10 of about 68 (68)

Localizing the First Interstellar Meteor with Seismometer Data

Signals, 2023
The first meter-scale interstellar meteor (IM1) was detected by US government sensors in 2014, identified as an interstellar object candidate in 2019, and confirmed by the Department of Defense (DoD) in 2022.
Amir Siraj, Abraham Loeb
doaj   +1 more source

The First Instrumentally Documented Fall of an Iron Meteorite: Orbit and Possible Origin

The Astrophysical Journal, 2023
A bright fireball observed on 2020 November 7, over Scandinavia, produced the first iron meteorite with a well-determined pre-atmospheric trajectory.
Ihor Kyrylenko, Oleksiy Golubov, Ivan Slyusarev, Jaakko Visuri, Maria Gritsevich, Yurij N. Krugly, Irina Belskaya, Vasilij G. Shevchenko   +7 more
doaj   +1 more source

Slow Neutron-Capture Process: Low-Mass Asymptotic Giant Branch Stars and Presolar Silicon Carbide Grains

Universe, 2022
Presolar grains are microscopic dust grains that formed in the stellar winds or explosions of ancient stars that died before the formation of the solar system.
Nan Liu, Sergio Cristallo, Diego Vescovi
doaj   +1 more source

GROUPS OF METEORITE-PRODUCING METEOROIDS AND METEORITES IN ASTEROIDAL ORBITS AND THEIR SOURCES

Odessa Astronomical Publications, 2020
This paper presents the results of the analysis of possible existence of nine near-Earth meteorite-producing groups in asteroidal orbits, consisting of sporadic fireballs from the IAU MDC 2007 database, sporadic meteors from the SonotaCo database ...
Yu. M. Gorbanev, N. A. Konovalova, N. Kh. Davruqov   +2 more
doaj   +1 more source

Deepest ever photographed Geminid with small but non-negligible terminal mass

Astronomy & Astrophysics
We report an instrumental observation of the very exceptional Geminid fireball that was observed in the scope of the Czech part of the European Fireball Network (EN) on 13 December, 2012 at 4h12m59.4s UT.
Spurný Pavel, Borovička Jiří
doaj   +1 more source

Mare versus highland lunar impact flash light curve dichotomy

Astronomy & Astrophysics
We performed a comprehensive analysis of lunar impact flash (LIF) light curve shapes and their dependence on the lunar terrain, using the large sample of LIFs detected by NELIOTA over the last 9 years. We classified 124 multi-frame light curves into mare,
Athanasopoulos D., Liakos A., Bonanos A. Z., Koschny D., Sykioti O., Devogèle M., Cano J. L., Moissl R.   +7 more
doaj   +1 more source

The Nysa family as the main source of unequilibrated LL ordinary chondrites

Astronomy & Astrophysics
Context. The origin of the petrologic diversity observed in ordinary chondrites (OCs), the most common meteorites on Earth, remains debated. Competing models invoke either depth-dependent sampling of a single thermally stratified (‘onion-shell’) parent ...
Marsset M., Vernazza P., Brož M., Avdellidou C., Thomas C. A., McGraw L., Madden-Watson A., Minker K., Monnereau M., DeMeo F. E., Binzel R. P., Mahlke M., Carry B., Hanuš J., Simon P. N., Yang B., Beck P., Birlan M., Jehin E.   +18 more
doaj   +1 more source

Bolide Infrasound Signal Morphology and Yield Estimates: A Case Study of Two Events Detected by a Dense Acoustic Sensor Network

The Astronomical Journal
Two bolides (2016 June 2 and 2019 April 4) were detected at multiple regional infrasound stations, with many of the locations receiving multiple detections.
Trevor C. Wilson, Elizabeth A. Silber, Thomas A. Colston, Brian R. Elbing, Thom R. Edwards   +4 more
doaj   +1 more source

Two faces of L-type asteroids

Astronomy & Astrophysics
Context. L-types are a rare class of asteroids whose spectra indicate similarities with CO and CV chondrites, suggesting high abundances of refractory inclusions, particularly with respect to the calcium-aluminium-rich inclusion.
Mahlke M., Marsset M., Devogèle M., Baklouti D., Beck P., Bonal L., Brunetto R., Lantz C., Tanga P.   +8 more
doaj   +1 more source

Sorting and recycling processes of early inner Solar System materials

Astronomy & Astrophysics
Context. Within pristine chondrites, chondrules and a fine-grained matrix are the dominant components; however, their genetic relationship remains unresolved.
Xiang Jinwei, Neumann Wladimir, Li Ye, Jin Lei, Zhu Yanlin, Jin Ziliang   +5 more
doaj   +1 more source