Ring nebulae around Wolf–Rayet stars in M33 as seen by SITELLE

We have conducted an analysis of nebulae around Wolf–Rayet (WR) stars in M33 using data collected by the imaging Fourier transform spectrometer SITELLE at the Canada–France–Hawaii telescope as part of the SIGNALS Large Program. Of the 211 known WR stars in M33, 178 are located in the fields observed...

Full description

Saved in:
Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2024-05, Vol.530 (4), p.4153-4202
Main Authors: Tuquet, Selin, St-Louis, Nicole, Drissen, Laurent, Raaijmakers, Sylvain, Rousseau-Nepton, Laurie, Martin, René Pierre, Robert, Carmelle, Amram, Philippe
Format: Article
Language:English
Subjects:
Sciences of the Universe
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have conducted an analysis of nebulae around Wolf–Rayet (WR) stars in M33 using data collected by the imaging Fourier transform spectrometer SITELLE at the Canada–France–Hawaii telescope as part of the SIGNALS Large Program. Of the 211 known WR stars in M33, 178 are located in the fields observed in this study. We present the results of this analysis in the form of a comprehensive summary of all nebulae found around the observed WR stars. Based on three criteria we find to be the most effective for their detection, we detect a clear association with a circumstellar bubble around 33 of them (19 per cent). Our results show that the presence of bubbles does not correlate with the spectral type of the central star. The mean diameter of the WR nebulae we have found is 21 parsec.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/stae786