Results 31 to 40 of about 450 (192)
Radio Emissions from Earth’s Foreshock and Bolides
It is well understood that Earth’s foreshock radiation is due to the bow shock deflecting the solar wind and accelerating electrons upstream into the foreshock where they produce Langmuir waves and radio emissions.
Oppel, Patrick
core +2 more sources
Orbit, emission spectrum, and photometric analysis of two flickering sporadic fireballs [PDF]
We present the observations of two fireballs that exhibit fast and quasi-periodic brightness variations along their atmospheric path. This phenomenon, which is known as “flickering”, is associated to the entry of spinning non ...
J. M. Trigo-Rodríguez +7 more
core +3 more sources
Historical Bolide Infrasound Dataset (1960–1972)
We present the first fully curated, publicly accessible archive of infrasonic records from ten large bolide events documented by the U.S. Air Force Technical Applications Center’s global microbarometer network between 1960 and 1972.
Elizabeth A. Silber, Rodney W. Whitaker
doaj +1 more source
In this paper, the importance of information posted on social networks in the study of meteoroid entry into the Earth’s atmosphere is shown. This kind of networks work thanks to the information shared by many people, which is stored on different servers.
Arturo Cuevas Muñóz +2 more
doaj +1 more source
Oceans, Lakes, and Stromatolites on Mars
Billions of years ago, the Northern Hemisphere of Mars may have been covered by at least one ocean and thousands of lakes and rivers. These findings, based initially on telescopic observations and images by the Mariner and Viking missions, led ...
Rhawn G. Joseph +8 more
doaj +1 more source
Global Infrasonic Monitoring of Large Bolides. [PDF]
Using recent infrasonic data (1995-2001) and older infrasonic data recorded by AFTAC (1960-1974), we have refined our estimates of the global influx rate (cumulative influx) of large bolides with sufficient strength to deeply penetrate the atmosphere ...
ReVelle, D. O. (Douglas O.)
core
A superbolide with an estimated mass of 13,000 tonnes exploded at an altitude of 22 km over the city of Chelyabinsk (Russia) at 03 hours 20 min. 33 sec. UTC on February 15, 2013. It is now known as the Chelyabinsk meteorite. Over the past 100 years after
R. A. Rakhmatulin
doaj +1 more source
Allsky Camera Network for Detecting Bolides [PDF]
Replace the current software stack with Heimdall, a system that can capture, analyze, and showcase potential bolides captured by nodes distributed across the United ...
Turner, Tyler +3 more
core +1 more source
Trago aqui algumas notas sobre dois livros (Os anões e Sul) e dois contos (“Imagem verdadeira” e “A verdade sobre O coração dos homens”) da escritora Veronica Stigger, tentando pensar esse conjunto não a partir de noções literárias, mas apoiado em ideias
Pujol Filho, Reginaldo da Luz
doaj
Science Needs for a Terrestrial Biosphere Tipping Point Early Warning System
Abstract Tipping points in the Earth system have the potential to cause major detrimental impacts to the biosphere and societies. Their inherent nonlinearity implies that even relatively small additional increases in external forcing might result in disproportionately large adjustments to components of the Earth system.
Jesse F. Abrams +13 more
wiley +1 more source

