On the two high-metallicity DLAs at z = 2.412 and 2.583 towards Q 0918+1636★
نویسندگان
چکیده
منابع مشابه
Nitrogen Abundances in High-z DLAs
Determination of chemical abundances for elements produced mainly by Type I SNae and intermediate mass stars in high redshift DLAs probes the early chemical build-up on timescales comparable with their production. Nitrogen shows a peculiar behaviour never detected before in any other class of objects. For [N/H] < −3 there is a plateau with [N/Si] = −1.45 (±0.05). We interpret this as empirical ...
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leadership styles of tefl instructors at gilan university and their effects on the students attitudes and motivation
the subjects of the study are only the tefl teachers and students at gilan university. to obtain the desired data, a questionnaire which was based on the theories and disecussions gathered, was used as the main data gathering instrument. to determine the degree of relationship between variables, covariance and pearson product moment correlation coefficient were the formulas applied. the data we...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2013
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stt1579