The charge state in a highly dense molecular cloud

Autor:	Badr G. Ateya, M. S. El-Nawawy, A. Aiad
Rok vydání:	1992
Předmět:	Physics Space and Planetary Science Electrical resistivity and conductivity Chemical physics Desorption Interstellar cloud Charge density Thermal ionization Astronomy and Astrophysics Thermionic emission Atomic physics Charged particle Ion
Zdroj:	Astrophysics and Space Science. 190:257-270
ISSN:	1572-946X 0004-640X
DOI:	10.1007/bf00644852
Popis:	We have calculated the desorption rates of both physisorbed and chemisorbed ions from grain surfaces, due to the temperature increase at densities higher than 10−13 g cm−3. It has been found that physisorbed ions desorb from grain surfaces at neutral densities ofn>1.3×1011 cm−3, assuming that the desorption energyD is equal to 0.1 eV, while the desorption of chemisorbed ions from grain surface can only occur at neutral densities ofn>1015 cm−3, at which point thermal ionization becomes more dominant.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bfe8f191779bb1093eae95bc1edd5300 https://doi.org/10.1007/bf00644852 Zobrazit plný text záznamu Full text from SpringerLink