... F., Arnaboldi M., Sparke L. A neutral hydrogen survey of polar ring galaxies IV ... M., Combes F., Sparke L.S. A neutral hydrogen survey of polar ring galaxies III ... J.G., Seaquist E.R. Neutral hydrogen distribution in the NGC 7465 group of galaxies ...
... Here n (Te ) is the recombination rate onto level n. For hydrogen and hydrogenic ions ab out one half of all recombination acts proceed straight into the ground state of ion Xi+1 , and the rest of them recombine onto the excited states. ...
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Ссылки http://www.astro.spbu.ru/staff/afk/AtDatCentre/AtDatCat/Chapter2.pdf -- 121.1 Кб -- 19.11.2010 Похожие документы
... 25. "Equation of State and Opacities for Hydrogen Atmospheres of . Neutron Stars with Strong Magnetic Fields" . ... III. Partially ionized hydrogen models" . Ho W.C.G., Lai D., Potekhin A.Y., Chabrier G. ApJ, 2003, v.599, p.1293-1301 . 40. ...
... of gas phase abundances on hydrogen column density, fraction of molecular hydrogen, distance, location, etc., were also ... hydrogen, [X/H], where X (or N (X)) and H (or N (H) = N (HI) + 2 N (H2 )) are the column densities of an element X and hydrogen ...
... amorphous magnesium silicates, spinel, and hydrogenated amorphous carbon (HAC) and ... 8 3.4 Hydrogenated amorphous carbon Amorphous carbonaceous materials can show a ... Complex refractive index of hydrogenated amorphous carbon prepared by pyrolysis ...
... The cross-sections in atomic physics are usually measured in cm2 , megabarns (Mb = 10-18 cm2 ), or the hydrogen ground-state Bohr orbit areas (a2 = 0 8.797 · 10-17 cm2 ). c. The process rates. ...
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Ссылки http://www.astro.spbu.ru/staff/afk/AtDatCentre/AtDatCat/Introduction.pdf -- 47.2 Кб -- 19.11.2010 Похожие документы
... class O and they are often referred to as ionized hydrogen regions (HII regions ... lines, of which the lines of hydrogen and ionized and neutral helium dominate in the ...
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Ссылки http://www.astro.spbu.ru/staff/afk/Papers/2008/Kholtygin2008NeTediagnE.pdf -- 157.1 Кб -- 19.11.2010 Похожие документы
... containing broad spectral features (such as hydrogen lines) in each order were ... of the differential spectra in the region of the hydrogen lines were within 0.2-0.3 ...
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Ссылки http://www.astro.spbu.ru/staff/afk/Papers/2006/iotaHerE.pdf -- 590.7 Кб -- 19.11.2010 Похожие документы
... Hydrogenated amorphous carbon. ... Figure 4: Complex refractive index of hydrogenated amorphous carbon prepared by pyrolysis (annealing) of cellulose at different ...