CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD
In order to calculate the molecular concentrations in the interstellar cloud and to obtain heir spatial distribution we have made a computational code to solve the set of equations for chemical equilibrium and equations of charge and atom balance. Now 109 molecules and 1070 chemical reactions are in...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Odessa I. I. Mechnykov National University
2017-03-01
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| Series: | Odessa Astronomical Publications |
| Online Access: | http://oap.onu.edu.ua/article/view/93132 |
| _version_ | 1819168520568569856 |
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| author | I. Shmeld J. Freimanis N. G. Bochkarev |
| author_facet | I. Shmeld J. Freimanis N. G. Bochkarev |
| author_sort | I. Shmeld |
| collection | DOAJ |
| description | In order to calculate the molecular concentrations in the interstellar cloud and to obtain heir spatial distribution we have made a computational code to solve the set of equations for chemical equilibrium and equations of charge and atom balance. Now 109 molecules and 1070 chemical reactions are included. Besides, the gas phase reactions with neutrals and ions, formation of molecular hydrogen on grains and the ionization and dissociation due to cosmic rays and UV radiation were taken into account. In order to calculate the photodissociation rates of H2 and CO molecules we take into consideration: i) extinction due to H2 Lyman and Werner series bands, ii) extinction due to atomic H Lyman series lines - up to
n=1 -> n=51, iii) extinction due to 33 CO bands and dust continuum extinction. Only UV continuum for photodissociation of all other species was taken into account. |
| first_indexed | 2024-12-22T19:04:55Z |
| format | Article |
| id | doaj.art-fa2f88993d574453825e7a67375882e9 |
| institution | Directory Open Access Journal |
| issn | 1810-4215 |
| language | English |
| last_indexed | 2024-12-22T19:04:55Z |
| publishDate | 2017-03-01 |
| publisher | Odessa I. I. Mechnykov National University |
| record_format | Article |
| series | Odessa Astronomical Publications |
| spelling | doaj.art-fa2f88993d574453825e7a67375882e92022-12-21T18:15:50ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152017-03-0112013313510.18524/1810-4215.1999.12.9313293132CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUDI. Shmeld0J. FreimanisN. G. BochkarevInstitute of Astronomy, Latvian University, Raina Blvd 19, Riga, LV-1586 LatviaIn order to calculate the molecular concentrations in the interstellar cloud and to obtain heir spatial distribution we have made a computational code to solve the set of equations for chemical equilibrium and equations of charge and atom balance. Now 109 molecules and 1070 chemical reactions are included. Besides, the gas phase reactions with neutrals and ions, formation of molecular hydrogen on grains and the ionization and dissociation due to cosmic rays and UV radiation were taken into account. In order to calculate the photodissociation rates of H2 and CO molecules we take into consideration: i) extinction due to H2 Lyman and Werner series bands, ii) extinction due to atomic H Lyman series lines - up to n=1 -> n=51, iii) extinction due to 33 CO bands and dust continuum extinction. Only UV continuum for photodissociation of all other species was taken into account.http://oap.onu.edu.ua/article/view/93132 |
| spellingShingle | I. Shmeld J. Freimanis N. G. Bochkarev CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD Odessa Astronomical Publications |
| title | CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD |
| title_full | CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD |
| title_fullStr | CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD |
| title_full_unstemmed | CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD |
| title_short | CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD |
| title_sort | calculation of chemical equilibrium in the interstellar cloud |
| url | http://oap.onu.edu.ua/article/view/93132 |
| work_keys_str_mv | AT ishmeld calculationofchemicalequilibriumintheinterstellarcloud AT jfreimanis calculationofchemicalequilibriumintheinterstellarcloud AT ngbochkarev calculationofchemicalequilibriumintheinterstellarcloud |