Star Formation Rate in Holmberg IX Dwarf Galaxy

Details Star Formation Rate in Holmberg IX Dwarf Galaxy Star Formation Rate in Holmberg IX Dwarf Galaxy

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011seraj.183...71a&link_type=abstract

Serbian Astronomical Journal, vol. 183, pp. 71-75

Astronomy and Astrophysics

Astronomy

Galaxies: Dwarf, Galaxies: Ism, Hii Regions, Ism: Supernova Remnants, Stars: Formation

Scientific paper

In this paper we use previously determined Hα fluxes for dwarf galaxy Holmberg IX (Arbutina et al. 2009) to calculate star formation rate (SFR) in this galaxy. We discuss possible contaminations of Hα flux and, for the first time, we take into account optical emission from supernova remnants (SNRs) as a possible source of contamination of Hα flux. Derived SFR for Holmberg IX is 3.4×10-4M_{&sun;} yr-1. Our value is lower then in previous studies, due to luminous shock-heated source M&H 9-10, possible hypernova remnant, which we excluded from the total Hα flux in our calculation of SFR.

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