Metallicity dependent calibrations of flux based SFR tracers

Free access article

Issue		A&A Volume 443, Number 3, December I 2005


Page(s)		L19 - L23
Section		Letters
DOI		http://dx.doi.org/10.1051/0004-6361:200500194

A&A 443, L19-L23 (2005)
DOI: 10.1051/0004-6361:200500194

Letter

Metallicity dependent calibrations of flux based SFR tracers

J. Bicker and U. Fritze-v. Alvensleben

Institut für Astrophysik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
e-mail: ufritze@astro.physik.uni-goettingen.de

(Received 5 July 2005 / Accepted 1 October 2005)

Abstract
We present new calibrations of the widely used ${\rm H_\alpha}$ , ${\rm [OII]}$ , and UV luminosity vs. star formation rate (SFR) relations. Using our evolutionary synthesis code GALEV we compute the different calibrations for 5 metallicities, from 1/50 solar up to 2.5 solar. We find significant changes in the calibrations for lower metallicities compared to the standard calibrations using solar input physics.

Key words: galaxies: fundamental parameters -- galaxies: general

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