Ionized Gas and Sources of its Ionization in the Irr Galaxy IC 10

O.V. Egorov; V.P. Arkhipova; T.A. Lozinskaya; A.V. Moiseev

doi:10.1051/eas/1148031

All issues

Volume 48 (2011)

EAS Publications Series, 48 (2011) 147-148

Abstract

Issue		EAS Publications Series Volume 48, 2011 CRAL-2010 A Universe of Dwarf Galaxies


Page(s)		147 - 148
Section		ISM and Star Formation
DOI		https://doi.org/10.1051/eas/1148031
Published online		11 July 2011

A Universe of Dwarf Galaxies
M. Koleva, Ph. Prugniel and I. Vauglin (eds)
EAS Publications Series, 48 (2011) 147–148

Ionized Gas and Sources of its Ionization in the Irr Galaxy IC 10

O.V. Egorov¹, V.P. Arkhipova¹, T.A. Lozinskaya¹ and A.V. Moiseev²

¹ Sternberg Astronomical Institute, Moscow, Russia
² Special Astrophysical Observatory of Russian Academy of Science, Nizhnii Arkhyz, Karachai-Cherkessia, Russia

e-mail: morzedon@gmail.com

Abstract

We report the results of an analysis of the emission spectra of HII-regions in IC 10 ionized by star clusters and WR stars based on observations made with the 6-m telescope SAO RAS using MPFS field spectrograph and SCORPIO focal reducer operating in the slit spectrograph mode. We determine the masses and ages of ionizing star clusters in the violent star-forming region of the galaxy in terms of the new evolutionary models of emission-line spectra of HII-regions developed by Martin-Manjon et al. (2010). We estimate the amount of stars needed to ionize the brightest HII-region HL 111.