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The oxygen abundance gradient in M 101: The reliability of the P method

Bibcode
2004A&A...422..511C
DOI
10.1051/0004-6361:20047055
Cedrés, B.; Urbaneja, M. A.; Cepa, J.
Bibliographical reference

Astronomy and Astrophysics, v.422, p.511-514 (2004)

Advertised on:
8
2004
Journal
Astronomy and Astrophysics
Number of authors
3
IAC number of authors
3
Citations
14
Refereed citations
11
Description
We present the oxygen abundance determination for 90 H II regions in the inner parts of the grand design galaxy M 101. The abundances were derived employing the P method (Pilyugin cite{Pilyugin2001a}). A comparison is made with previous determinations using another calibration and direct measurements of electron temperature to derive the oxygen abundance. The results show agreement with the abundances derived from the electron temperature method and also show that the older calibration is not as accurate as the P method. Table 3 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/422/511
Type
Refereed
Galaxies

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