Survey of H-alpha emission from thirty nearby dwarf galaxies
S. S. Kaisin, I. D. Karachentsev, and E. I. Kaisina
TL;DR
This survey measures H-alpha fluxes from 30 nearby dwarf galaxies to estimate their star formation rates and compares these with FUV-based estimates, finding good agreement.
Contribution
It provides a comprehensive dataset of H-alpha fluxes for 30 dwarf galaxies and compares SFR estimates from H-alpha and FUV emissions.
Findings
H-alpha fluxes are corrected for absorption.
SFR estimates from H-alpha and FUV are consistent.
The study covers galaxies with SFRs from 10^-3 to 1 solar mass per year.
Abstract
Measurements of the H-alpha flux from 30 neighboring dwarf galaxies are presented. After correction for absorption, these fluxes are used to estimate the star formation rate (SFR). The SFR for 18 of the galaxies according to the H-alpha emission are compared with estimates of the SFR from FUV magnitudes obtained with the GALEX telescope. These are in good agreement over the range log[SFR] = [-3,0]M sun/yr.
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