Results 61 to 70 of about 4,060 (283)

A Curated Dataset of Regional Meteor Events with Simultaneous Optical and Infrasound Observations (2006–2011)

open access: yesData
We present a curated, openly accessible dataset of 71 regional meteor events simultaneously recorded by optical and infrasound instrumentation between 2006 and 2011. These events were captured during an observational campaign using the all-sky cameras of
Elizabeth A. Silber   +3 more
doaj   +1 more source

Radar and optical leonids [PDF]

open access: yesAtmospheric Chemistry and Physics, 2004
We present joint optical-radar observations of meteors collected near the peak of the Leonid activity in 2002. We show four examples of joint detections with a large, phased array L-band radar and with intensified video cameras.
N. Brosch   +4 more
doaj  

Abstracts for the International Conference on Asteroids, Comets, Meteors 1991 [PDF]

open access: yes, 1991
Topics addressed include: chemical abundances; asteroidal belt evolution; sources of meteors and meteorites; cometary spectroscopy; gas diffusion; mathematical models; cometary nuclei; cratering records; imaging techniques; cometary composition; asteroid

core  

Hospitaller Revenues, Bourbon Regalism: The Financial Administration of the Grand Priory of Castile and León under an American Parvenu

open access: yesHistory, EarlyView.
Abstract After the vicissitudes of the War of the Spanish Succession (1701–14), the consolidation of the Bourbon Monarchy in early eighteenth‐century Spain allowed Philip V's ministry to implement the so‐called Nueva Planta in his various kingdoms and lordships of the Crown of Aragon, but also in Castile.
Roberto Quirós Rosado
wiley   +1 more source

The stellar origins of 96Zr excesses in presolar graphites from the Murchison meteorite

open access: yesAstronomy & Astrophysics
Context. Zirconium-96 is a stable isotope that can be synthesized under different neutron-rich nucleosynthetic conditions. Astrophysical models predict its production to occur in various stellar environments: from low-to-intermediate-mass asymptotic ...
Pal I.   +16 more
doaj   +1 more source

The Momentum of ‘Developed’: Bodies of Water, Aging Bodies and Malta's Interventions at the UN

open access: yesHistory, EarlyView.
Abstract Histories of major powers continue to shape how many scholars conceptualize internationalism. By focusing on Malta's interventions at the UN challenges, this article challenges such narrative. In particular, it examines Arvid Pardo's 1967 petition that the seabed be reconceived and protected as the ‘common heritage of mankind’ and Vincent ...
Brianne Wesolowski
wiley   +1 more source

An Upper Limit on the Interstellar Meteoroid Flux at Video Sizes from the Global Meteor Network

open access: yesThe Astrophysical Journal
Material arriving at our solar system from the Galaxy may be detected on Earth in the form of meteors ablating in our atmosphere. Here, we report on a search for interstellar meteors within the highest-quality events in the Global Meteor Network (GMN ...
Paul Wiegert   +4 more
doaj   +1 more source

Spatial bias correction for sporadic meteors photographed in New Mexico [PDF]

open access: yes, 1970
Spatial bias correction for sporadic meteors photographed in New ...
Albers, L. U., Diedrich, G.
core  

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

open access: yesIntegrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez   +4 more
wiley   +1 more source

Meteors, Comets and Meteoric Ionization [PDF]

open access: yesNature, 1947
A C B Lovell   +4 more
openaire   +3 more sources

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