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“Stars Falling to Earth”—Mental Models of Comets and Meteors

open access: yesEducation Sciences
The present study examines students’ conceptions of comets and meteors using qualitative research methods. A total of 35 semi-structured interviews were conducted with students in grades 7 and 9 in Germany, aiming to gain a richer understanding of how ...
Malte S. Ubben   +2 more
doaj   +3 more sources

The Development of a Low-Cost Fresnel Lens UV Telescope with SiPM Array for Low-Light Atmospheric Transient Detection [PDF]

open access: yesSensors
This work presents the development and experimental characterization of a compact ultraviolet (UV) telescope based on silicon photomultipliers (SiPMs) designed for the detection of faint atmospheric optical tracks.
Gabriel Chiritoi, Eugeniu Mihnea Popescu
doaj   +2 more sources

Evaporation of high speed sporadic meteors [PDF]

open access: yesAtmospheric 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   +3 more sources

The Colour Analysis of Meteors Using the Desert Fireball Network [PDF]

open access: yes, 2023
Meteors have long been studied to determine their origins, whether it be the initial curiosity of ‘What is this bright light streaking across the sky?’, or where these chunks of celestial rocks come from in our Solar system.
Johnson, Christopher
core   +1 more source

All-Sky Observation of the 2001 Leonid Meteor Storm: 1. Meteor Magnitude Distribution [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
The 2001 Leonid meteor storm has been observed all over the world, and its most intense flux since the last few decades has caused great interest among both laymen and experts. Especially, its maximum hours occurred at dawn hours of Nov.
Jeong Han Kim   +5 more
doaj   +1 more source

Localizing the First Interstellar Meteor with Seismometer Data

open access: yesSignals, 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

Time/Frequency Analysis of Terrestrial Impack Crater Records [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
The terrestrial impact cratering record recently has been examined in the time domain by Chang & Moon (2005). It was found that the ˜ 26 Myr periodicity in the impact cratering rate exists over the last ˜ 250 Myrs.
Heon-Young Chang
doaj   +1 more source

Determination of meteor-head echo trajectories using the interferometric capabilities of MAARSY [PDF]

open access: yesAnnales Geophysicae, 2013
During the flight of a meteoroid through the neutral atmosphere, the high kinetic energy is sufficient to ionize the meteoric constituents. Radar echoes coming from plasma irregularities surrounding the meteoroids are called meteor-head echoes, and ...
C. Schult   +3 more
doaj   +1 more source

The sporadic radiant and distribution of meteors in the atmosphere as observed by VHF radar at Arctic, Antarctic and equatorial latitudes [PDF]

open access: yesAnnales Geophysicae, 2009
Results are presented of a study of the temporal and spatial variability in meteor count rate observations from three VHF meteor radars. These radar are located in the Arctic (at Esrange, 68° N), in the Antarctic (at Rothera, 68° S) and near ...
P. T. Younger   +3 more
doaj   +1 more source

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