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pro vyhledávání: '"BROWN, Peter G."'
Although the risk posed to spacecraft due to meteoroid impacts is dominated by sporadic meteoroids, meteor showers can raise this risk for short periods of time. NASA's Meteoroid Environment Office issues meteor shower forecasts that describe these p
Externí odkaz:
http://arxiv.org/abs/2408.04612
The rate at which meteors pass through Earth's atmosphere has been measured or estimated many times over; existing flux measurements span at least 12 astronomical magnitudes, or roughly five decades in mass. Unfortunately, the common practice of scal
Externí odkaz:
http://arxiv.org/abs/2405.07874
In this work, we present an optical survey of mm-sized meteoroids using the Canadian Automated Meteor Observatory's (CAMO) mirror tracking system. The system tracks meteors to magnitude +7.5 through an image-intensified telescopic system which has a
Externí odkaz:
http://arxiv.org/abs/2312.00897
18 mm-sized Orionid meteoroids were captured in 2019 and 2020 by the Canadian Automated Observatory's mirror tracking system. Meteor position measurements were made to an accuracy of $\sim1$ m and the meteors were tracked to a limiting magnitude of a
Externí odkaz:
http://arxiv.org/abs/2310.12776
Autor:
Brown, Peter G., Borovička, Jiří
A critical review of the evidence for the interstellar origin for the USG 20140108 fireball is presented. Examining USG fireball velocities where independent data are available shows the former to have significant (10-15 km/s) uncertainties at large
Externí odkaz:
http://arxiv.org/abs/2306.14267
The $\tau$-Herculids (IAU shower number #61 TAH) is a minor meteor shower associated with comet 73P/Schwassmann-Wachmann 3, a Jupiter-Family comet that disintegrated into several fragments in 1995. As a consequence of the nucleus break-up, possible i
Externí odkaz:
http://arxiv.org/abs/2302.02915
Autor:
Vida, Denis, Brown, Peter G., Devillepoix, Hadrien A. R., Wiegert, Paul, Moser, Danielle E., Matlovič, Pavol, Herd, Christopher D. K., Hill, Patrick J. A., Sansom, Eleanor K., Towner, Martin C., Tóth, Juraj, Cooke, William J., Hladiuk, Donald W.
The Oort cloud is thought to be a reservoir of icy planetesimals and the source of long-period comets (LPCs) implanted from the outer Solar System during the time of giant planet formation. The abundance of rocky ice-free bodies is a key diagnostic o
Externí odkaz:
http://arxiv.org/abs/2212.06812
Autor:
Clark, David L., Wiegert, Paul A., Brown, Peter G., Vida, Denis, Heinze, Aren, Denneau, Larry
On 2020 September 18 US Government sensors detected a bolide with peak bolometric magnitude of -19 over the western Pacific. The impact was also detected by the Geostationary Lightning Mapper (GLM) instrument on the GOES-17 satellite and infrasound s
Externí odkaz:
http://arxiv.org/abs/2209.04583