Properties of Alpha Monocerotid meteors from the observation of the 2019 outburst in the Czech Republic
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00552643" target="_blank" >RIV/67985815:_____/21:00552643 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202141465" target="_blank" >https://doi.org/10.1051/0004-6361/202141465</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202141465" target="_blank" >10.1051/0004-6361/202141465</a>
Alternative languages
Result language
angličtina
Original language name
Properties of Alpha Monocerotid meteors from the observation of the 2019 outburst in the Czech Republic
Original language description
We observed the predicted outburst of the Alpha Monocerotid (AMO) meteor shower on 2019 November 22 with our modernized video and photographic cameras. Due to the short duration and moderate intensity of the outburst, atmospheric trajectories and radiants were obtained for only ten meteors, seven of which included velocities, magnitudes, and orbits. In addition, one incomplete video spectrum was captured. The radiants and orbits were found to be compatible with that of the 1995 outburst. The spectrum confirmed that AMO meteoroids are deficient in sodium. Unlike any other meteor shower, meteor end heights were found to be distributed along a constant level of 90 km for all meteors with magnitudes between +4 and -2 and with atmospheric trajectory lengths up to 40 km. We propose that Alpha Monocerotids were formed from a devolatilized and fragile cometary crust composed from relatively large fundamental grains.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GX19-26232X" target="_blank" >GX19-26232X: Compositional and orbital mapping of meteoroid sources in the Solar System</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
654
Issue of the periodical within the volume
October
Country of publishing house
FR - FRANCE
Number of pages
8
Pages from-to
A147
UT code for WoS article
000710646500003
EID of the result in the Scopus database
2-s2.0-85118264680