3D spectroscopy of Wolf-Rayet HII galaxies
Abstract
Wolf-Rayet HII galaxies are local metal-poor star-forming galaxies, observed when the most massive stars are evolving from O stars to WR stars, making them template systems to study distant starbursts. We have been performing a program to investigate the interplay between massive stars and gas in WR HII galaxies using IFS. Here, we highlight some results from the first 3D spectroscopic study of Mrk 178, the closest metal-poor WR HII galaxy, focusing on the origin of the nebular HeII emission and the aperture effects on the detection of WR features.
- Publication:
-
Galaxies in 3D across the Universe
- Pub Date:
- February 2015
- DOI:
- 10.1017/S1743921314009521
- arXiv:
- arXiv:1410.2635
- Bibcode:
- 2015IAUS..309..155K
- Keywords:
-
- galaxies: dwarf;
- ISM: abundances;
- ISM: HII regions;
- stars: Wolf-Rayet;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- Kehrig et al. 2014, in IAU Symp.309, "Galaxies in 3D across the Universe", B.L.Ziegler, F.Combes, H.Dannerbauer, M.Verdugo, Eds. (Cambridge: Cambridge Univ. Press), in press