0484218 - ÚFCH JH 2018 RIV FR eng J - Journal Article
Ferus, Martin - Koukal, J. - Lenža, Libor - Srba, J. - Kubelík, Petr - Laitl, V. - Zanozina, Ekaterina M. - Váňa, Pavel - Kaiserová, Tereza - Knížek, Antonín - Rimmer, P. - Chatzitheodoridis, E. - Civiš, Svatopluk
Calibration-free quantitative elemental analysis of meteor plasma using reference laser-induced breakdown spectroscopy of meteorite samples.
Astronomy & Astrophysics. Roč. 610, FEB 2018 (2018), č. článku A73. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA ČR(CZ) GA14-12010S; GA ČR(CZ) GA18-27653S
Grant - others:Akademie věd - GA AV ČR(CZ) R200401521; Akademie věd - GA AV ČR(CZ) R200401721; COST(XE) CM1104; COST(XE) TD1308; RFBR(RU) 16-32-00034
Institutional support: RVO:61388955
Keywords : astrochemistry * spectroscopic techniques * calibration-free LIBS * plasma simulation
OECD category: Physical chemistry
Impact factor: 6.209, year: 2018
Method of publishing: Open access

Aims. We aim to analyse real-time Perseid and Leonid meteor spectra using a novel calibration-free (CF) method, which is usually
applied in the laboratory for laser-induced breakdown spectroscopic (LIBS) chemical analysis.
Methods. Reference laser ablation spectra of specimens of chondritic meteorites were measured in situ simultaneously with a highresolution
laboratory Echelle spectrograph and a spectral camera for meteor observation. Laboratory data were subsequently evaluated
via the CF method and compared with real meteor emission spectra. Additionally, spectral features related to airglow plasma were
compared with the spectra of laser-induced breakdown and electric discharge in the air.
Results. We show that this method can be applied in the evaluation of meteor spectral data observed in real time. Specifically, CF
analysis can be used to determine the chemical composition of meteor plasma, which, in the case of the Perseid and Leonid meteors
analysed in this study, corresponds to that of the C-group of chondrites.
Permanent Link: http://hdl.handle.net/11104/0279355