Počet záznamů: 1

Formation of molecules in bright meteors

  1. 1.
    0352555 - ASU-R 2011 RIV US eng J - Článek v odborném periodiku
    Berezhnoy, A.A. - Borovička, Jiří
    Formation of molecules in bright meteors.
    Icarus. Roč. 210, č. 1 (2010), s. 150-157 ISSN 0019-1035
    Grant CEP: GA AV ČR IAA300030813
    Výzkumný záměr: CEZ:AV0Z10030501
    Klíčová slova: meteors * atmospheres * Earth
    Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
    Impakt faktor: 3.813, rok: 2010

    We calculated equilibrium chemical composition of a mixture of meteoritic vapor and air during fireball events, i.e. during penetration of large meteoroids into terrestrial atmosphere. Different types of fireballs were considered, and calculations were performed for wide ranges of temperatures and pressures. Chemical composition at the quenching point was estimated by comparison of hydrodynamic and chemical reaction time scales. For the typical fireball temperatures of 4000-5000 K, most elements are expected to be in the form of atoms and ions.
    Trvalý link: http://hdl.handle.net/11104/0192041