Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...428..241b&link_type=abstract
Astronomy and Astrophysics, v.428, p.241-246 (2004)
Astronomy and Astrophysics
Astrophysics
1
Meteors, Meteoroids
Scientific paper
Among 11 bright Geminid meteors photographed at the Institute of Astrophysics, Tajik Academy of Sciences (Dushanbe, Tajikistan), 3 displayed distinct high-frequency (more than 100 Hz) pulsations of brightness, or flickering. As a rule, for these Geminids, pulsations of brightness begin at the middle of their photographed path, at the height of about 75 km, and last until the end of the visible trajectory. Different possible meteoroid ablation mechanisms causing the flickering of the bright Geminids are discussed. The obtained results allow us to conclude that the observed high-frequency flickering of Geminid fireballs may be explained by an autofluctuating mechanism of the meteoroid ablation, i.e. by melting and cyclic ablation of the surface-layer of meteoric matter with the period corresponding to the observed period of the flickering.
Babadzhanov Pulat B.
Konovalova N. A.
No associations
LandOfFree
Some features of Geminid meteoroid disintegration in the Earth's atmosphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Some features of Geminid meteoroid disintegration in the Earth's atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Some features of Geminid meteoroid disintegration in the Earth's atmosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1635332