期刊
ICARUS
卷 290, 期 -, 页码 162-182出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2017.02.025
关键词
Meteor showers; Meteoroids streams; Meteors; Radar
资金
- Canada Research Chair program
- Natural Sciences and Engineering Research Council
- NASA Meteoroid Environment Office for funding support [NNX15AC94A]
- NSF [AGS-0634650, AGS-0944104, AST-0908118]
- NASA [12-PAST12-0007, 12-PATM12-0006]
- NASA [NNX15AC94A, 804840] Funding Source: Federal RePORTER
Over a million individually measured meteoroid orbits were collected with the Southern Argentina Agile MEteor Radar (SAAMER) between 2012-2015. This provides a robust statistical database to perform an initial orbital survey of meteor showers in the Southern Hemisphere via the application of a 3D wavelet transform. The method results in a composite year from all 4 years of data, enabling us to obtain an undisturbed year of meteor activity with more than one thousand meteors per day. Our automated meteor shower search methodology identified 58 showers. Of these showers, 24 were associated with previously reported showers from the IAU catalogue while 34 showers are new and not listed in the catalogue. Our searching method combined with our large data sample provides unprecedented accuracy in measuring meteor shower activity and description of shower characteristics in the Southern Hemisphere. Using simple modeling and clustering methods we also propose potential parent bodies for the newly discovered showers. (C) 2017 Elsevier Inc. All rights reserved.
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