3D spectroscopy of Wolf-Rayet HII galaxies
C. Kehrig, E. Perez-Montero, J.M. Vilchez, J. Brinchmann, D. Kunth, F., Durret, J. Iglesias-Paramo, J. Hernandez-Fernandez
TL;DR
This study uses 3D spectroscopy to analyze Wolf-Rayet HII galaxies, focusing on Mrk 178, to understand massive star interactions with gas and the detection of WR features.
Contribution
It presents the first 3D spectroscopic analysis of Mrk 178, revealing insights into nebular HeII emission and aperture effects on WR feature detection.
Findings
Identification of nebular HeII emission origins.
Impact of aperture size on WR feature detection.
Insights into massive star and gas interplay in metal-poor galaxies.
Abstract
Wolf-Rayet (WR) 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.
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