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Information × Registration Number 0210U004015, 0106U011686 , R & D reports Title Study of physical characteristics of the emission line galaxies from Sloan Digital Sky Survay popup.stage_title Head Izotov Yu.I., Registration Date 02-02-2010 Organization Main Astronomical Observatory popup.description2 We have selected near 10000 spectra of galaxies with strong emission lines from Sloan Digital Sky Survey database. The emission line intensities and abundances of the chemical elements were determined in our sample of galactic spectra. It was found that the ?-elements-to-oxygen abundance ratio is not depend on the abundance of oxygen; thus, ?-elements, likely, were synthesized in the same massive stars as oxygen. The oxygen-to-iron abundance ratio is fast decreasing with increase of the oxygen abundance. This is an evidence of the greater part of iron to be in the dust phase, not in the gas phase, in the galaxies with higher oxygen abundances. The gradients of the abundance of chemical elements (especially, oxygen) in the some spiral galaxies have been obtained. It was demonstrated that there is the upper limit of oxygen abundance in the galaxies at the level exceeded the solar abundance by twice only. Product Description popup.authors Ізотов Юрій Іванович Агієнко Катерина Борисівна Гусєва Наталія Григорівна Никитюк Тетяна Вікторівна Пілюгін Леонід Степанович Шкварун Руслан Вікторович Якобчук Тарас Миколайович popup.nrat_date 2020-04-02 Close