Results 101 to 110 of about 2,586 (262)

Multi-station fireball observations combining all-sky spectroscopy and optical trajectory measurements

Earth and Planetary Physics
Optical monitoring of fireballs can provide reconstructions of luminous trajectories and the derivation of heliocentric orbits, whereas spectral observations are able to supply information from an entirely different perspective, with composition and ...
ZhiJian Xu, HaiBin Zhao, Nawaz Mahomed, Yi Li   +3 more
doaj   +1 more source

INTERSTELLAR METEOROIDS WITH ALMOST HYPERBOLIC ORBITS

Odessa Astronomical Publications, 2017
Opportunities for detecting interstellar meteoroids with implicit hyperbolic orbits are explored. It is indicated that the idea of their interstellar origin is based on the distribution of hyperbolic orbits of meteoric particles according to elongation ...
A. K. Markina, L. Ya. Skoblikova
doaj   +1 more source

Small iron meteoroids

, 2019
Context. A significant fraction of small meteors are produced by iron meteoroids. Their origin and the interaction with the atmosphere have not been well explained up to now. Aims.
Pavel Spurný, Vlastimil Vojáček, David Čapek, Rostislav Štork, Jiří Borovička, Pavel Koten   +5 more
core   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +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 mesospheric metal layer topside: a possible connection to meteoroids [PDF]

Atmospheric Chemistry and Physics, 2004
In the past, many studies have been carried out to demonstrate the influence of meteoroids on the atmospheric metal layer, observed roughly in the altitude range 80–105 km.
J. Höffner, J. S. Friedman
doaj  

Meteoroid Fragmentation in the Martian Atmosphere and the Formation of Crater Clusters. [PDF]

J Geophys Res Planets, 2022
Collins GS, Newland EL, Schwarz D, Coleman M, McMullan S, Daubar IJ, Miljković K, Neidhart T, Sansom E.   +8 more
europepmc   +1 more source

Filter feeders living on suspension feeders: New insights into the lifestyle and distribution of Arcturidae Dana, 1849 (Crustacea: Isopoda) around Iceland

Marine Ecology, EarlyView.
Abstract The focus of the present study was on arcturid isopods occurring in the subarctic region around Iceland. Data from two decades of sampling with an epibenthic sledge (EBS) during numerous expeditions of the BIOICE (Benthic Invertebrates of Icelandic Waters; 1992–2004) and IceAGE (Icelandic marine Animals: Genetics and Ecology; 2011—ongoing ...
Vivien Lukas Hartmann, Emanuel Pereira, Nancy F. Mercado‐Salas, Anne‐Nina Lörz, Jörundur Svavarsson, Saskia Brix   +5 more
wiley   +1 more source

H+ irradiation of ordinary chondrites supporting observations of Torifune by Hayabusa2#

Astronomy & Astrophysics
Context. The Hayabusa2# mission has performed a flyby of the S-type asteroid Torifune, and thanks to the NIRS3 instrument, it has collected infrared spectra in the 3 μm region for the first time on such a small dry body. Aims.
Lantz C., Malbranque L., Brunetto R., Kitazato K., Benoit-Lamaitrie P., Djouadi Z., Aléon-Toppani A., Kinsumuna O., Kanemaru R., Abe M., Iwata T., Bourçois J.   +11 more
doaj   +1 more source

Evaporation of high speed sporadic meteors [PDF]

Atmospheric Chemistry and Physics, 2004
Recent measurements conducted at the Arecibo Observatory report high-speed sporadic meteors having velocities near 50 km/s. The results seem to indicate a bimodal velocity distribution in the sporadic meteors (maxima at ~20 km/s and ~50 km/s).
E. Murad, C. Roth
doaj