Chemical Abundance Pattern in Spiral Galaxy NGC 628 from Narrow-Band Photometry

Details Chemical Abundance Pattern in Spiral Galaxy NGC 628 from Narrow-Band Photometry Chemical Abundance Pattern in Spiral Galaxy NGC 628 from Narrow-Band Photometry

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21724603b&link_type=abstract

American Astronomical Society, AAS Meeting #217, #246.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We consider a possibility of studying the two-dimensional gas abundances in relatively nearby galaxies using the narrow-band photometry. A face-on spiral galaxy NGC 628 was observed with a small 0.5-m telescope at the Apache Point Observatory in 11 narrow passbands. We centered them at the Balmer emission lines, at the strong lines of O, N, S, and interline continuum points. We derive the distribution of the dust extinction and chemical abundances across the whole disk of NGC 628. Accuracy of the method and possibility of optimization of the passbands number is considered.
The project is partly supported by AAS Small Research grant.

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