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2. Investigation of the physical conditions in the molecular clouds of our Galaxy
- Subjects
spectroscopy ,коÑÐ¼Ð¾Ð»Ð¾Ð³Ð¸Ñ ,ÑлÑÑÑаÑÐ¸Ð¾Ð»ÐµÑ ,облака ,clouds ,absorption lines ,молекÑÐ»Ñ ,линии поглоÑÐµÐ½Ð¸Ñ ,ÑпекÑÑоÑÐºÐ¾Ð¿Ð¸Ñ ,ultraviolet ,межзвÑÐ·Ð´Ð½Ð°Ñ ÑÑеда ,molecules ,cosmology ,ism - Abstract
Рданной ÑабоÑе пÑедÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑезÑлÑÑаÑÑ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑда ÑизиÑеÑÐºÐ¸Ñ ÑÑловий: плоÑноÑÑи, Ñеплового давлениÑ, инÑенÑивноÑÑи Ð¿Ð¾Ð»Ñ ÑлÑÑÑаÑиолеÑового излÑÑÐµÐ½Ð¸Ñ Ð¸ ÑемпеÑаÑÑÑÑ Ð²Ð¾Ð·Ð±ÑÐ¶Ð´ÐµÐ½Ð¸Ñ Ð² межзвездной ÑÑеде наÑей ÐалакÑики, ÑодеÑжаÑей Hâ и CO. ÐаÑи измеÑÐµÐ½Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ñ Ð½Ð° подгонке к наблÑдаемой заÑеленноÑÑи вÑаÑаÑелÑнÑÑ ÑÑовней Hâ, CO и ÑÑовней Ñонкой ÑÑÑÑкÑÑÑÑ CI Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑеÑок ÑиÑленнÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹, ÑаÑÑÑиÑаннÑÑ Ñ Ð¸ÑполÑзованием кода PDR Meudon. СовмеÑÑнÑй анализ вÑаÑаÑелÑнÑÑ ÑÑовней Hâ и ÑÑовней Ñонкой ÑÑÑÑкÑÑÑÑ CI позволÑÐµÑ ÑнÑÑÑ Ð²ÑÑождение в паÑе велиÑин UV и обеÑпеÑÐ¸Ð²Ð°ÐµÑ Ð¾Ð³ÑаниÑÐµÐ½Ð¸Ñ Ð½Ð° плоÑноÑÑÑ Ð¸ инÑенÑивноÑÑÑ Ð£Ð¤-полÑ. Ðз маÑÑива даннÑÑ , полÑÑеннÑÑ ÑелеÑкопом Far Ultraviolet Spectroscopic Explorer (FUSE), бÑли вÑбÑÐ°Ð½Ñ 15 ÑиÑÑем поглоÑÐµÐ½Ð¸Ñ Hâ Ð²Ð´Ð¾Ð»Ñ Ð»ÑÑа зÑÐµÐ½Ð¸Ñ Ð½Ð° звÑÐ·Ð´Ñ Ð² галакÑике ÐлеÑнÑй ÐÑÑÑ Ð´Ð»Ñ ÐºÐ¾ÑоÑÑÑ Ð¸ бÑл пÑоведÑн анализ ÑизиÑеÑÐºÐ¸Ñ Ð²ÐµÐ»Ð¸Ñин. РпÑоÑÑÑанÑÑве паÑамеÑÑов I uv-n (инÑенÑивноÑÑÑ Ð£Ð¤-Ñона и конÑенÑÑаÑÐ¸Ñ Ð°Ñомов/молекÑл) в ÑлÑÑае Ñ Ð°ÑомаÑнÑм ÑглеÑодом CI обнаÑÑжен ÑÑÑÐµÐºÑ ÑкÑаниÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð¾Ð»ÐµÐºÑлÑÑнÑÑ Ð¾Ð±Ð»Ð°ÐºÐ¾Ð², коÑоÑÑй заклÑÑаеÑÑÑ Ð² ÑледÑÑÑем: Ñ Ð²Ð¾Ð·ÑаÑÑанием инÑенÑивноÑÑи Ð¿Ð¾Ð»Ñ ÑлÑÑÑаÑиолеÑового излÑÑÐµÐ½Ð¸Ñ ÐºÐ¾Ð½ÑенÑÑаÑÐ¸Ñ Ð¾ÑÑаÑÑÑÑ Ð½ÐµÐ¸Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹. ÐодÑобное ÑаÑÑмоÑÑение данного ÑÑÑекÑа бÑÐ´ÐµÑ Ð¿Ñоведено в поÑледÑÑÑÐ¸Ñ ÑовмеÑÑнÑÑ ÑабоÑÐ°Ñ Ð¿Ð¾Ð´ ÑÑководÑÑвом Ð.Ð. Ðлименко., This paper presents the results of an analysis of a number of physical conditions: density, thermal pressure, ultraviolet radiation field intensity and excitation temperature in the interstellar medium of our Galaxy containing Hâ and CO. Our measurements are based on fitting to the observed population of the rotational levels Hâ, CO and fine structure levels CI using numerical model grids calculated using the code PDR Meudon. From the data set obtained by the Far Ultraviolet Spectroscopic Explorer (FUSE) telescope, 15 absorption systems Hâ along the line of sight of the stars in the Milky Way galaxy were selected for which the physical quantities were analyzed. In the space of parameters I uv-n (the intensity of the UV background and the concentration of atoms / molecules) in the case of atomic carbon CI is found the effect of shielding molecular clouds, which consists in the following: with an increase in the intensity of the ultraviolet radiation field, the concentration remains unchanged. A detailed consideration of this effect will be carried out in joint works under the leadership of V.V. Klimenko.
- Published
- 2021
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3. COMPLEX COMPOUNDS OF URANIUM HEXAFLUORIDE WITH ALKALI METAL FLUORIDES. COMMUNICATION II. CESIUM HEPTAFLUOROURANATE CsUF.
- Author
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Nikolaev, N
- Published
- 1970
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