Checking the reliability of equivalent width R23 for estimating the metallicities of galaxies
نویسندگان
چکیده
منابع مشابه
Checking the reliability of equivalent width R 23 for estimating the metallicities of galaxies
Aims. We verify whether the O/H abundances of galaxies can be derived from the equivalent width (EW) R23 instead of the extinctioncorrected flux R23, and eventually propose a method of improving the reliability of this empirical method, which is often used for the non-flux calibrated spectra of galaxies. Methods. We select 37,173 star-forming galaxies from the Second Data Release of the Sloan D...
متن کاملChecking the reliability of equivalent width R 23 to estimate metallicities of galaxies
Aims. We verify whether the O/H abundances of galaxies may be derived from the equivalent width (EW) R23 instead of the extinctioncorrected flux R23, and eventually propose a method to improve the reliability of this empirical method which is often used for the non-flux calibrated spectra of galaxies. Methods. We select 37,173 star-forming galaxies from the Second Data Release of the Sloan Digi...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20077884