Star formation complexes in the 'galaxy-sized' supergiant shell of the galaxy Holmberg I

24Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

We present the results of observations of the galaxy Holmberg I carried out at the Russian 6-m telescope in the narrow-band imaging, long-slit spectroscopy, and scanning Fabry-Perot interferometer modes. A detailed analysis of gas kinematics, ionization conditions, and metallicity of star-forming regions in the galaxy is presented. The aim of the paper is to analyse the propagation of star formation in the galaxy and to understand the role of the ongoing star formation in the evolution of the central 'galaxy-sized' supergiant HI shell (SGS), where all regions of star formation are observed. We show that star formation in the galaxy occurs in large unified complexes rather than in individual giant HII regions. Evidence of the triggered star formation is observed both on scales of individual complexes and of the whole galaxy. We identified two supernova-remnant candidates and one late-typeWNstar and analysed their spectrum and surrounding-gas kinematics. We provide arguments indicating that the SGS in Holmberg I is destructing by the influence of star formation occurring on its rims.

Cite

CITATION STYLE

APA

Egorov, O. V., Lozinskaya, T. A., Moiseev, A. V., & Smirnov-Pinchukov, G. V. (2018). Star formation complexes in the “galaxy-sized” supergiant shell of the galaxy Holmberg I. Monthly Notices of the Royal Astronomical Society, 478(3), 3386–3409. https://doi.org/10.1093/MNRAS/STY1158

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free