Abstract The Local Bubble is generally presumed to be a hot superbubble generated by
stellar winds and supernovae. Superbubbles are common in star-forming galaxies, and …

We report the detection toward η Carinae of six new molecules, CO, CN, HCO+, HCN, HNC,
and N 2 H+, and of two of their less abundant isotopic counterparts, 13 CO and H 13 CN …

A recent XMM–Newton observation has revealed diffuse X-ray emission inside the nebula
NGC 2359 around the Wolf–Rayet star WR 7. Taking advantage of an improved point …

We show radio continuum observations of the WR ring nebulae around WR 101 and WR
113 obtained using the VLA and H i 21 cm line data of the interstellar bubble around the O …

We present for the first time the detection of mid-J CO line emission in the outskirts of an
evolved massive star, which indicates the presence of warm and/or high-density molecular …

We report the first detection of ammonia in the Homunculus Nebula around η Carinae, which
is also the first detection of emission from a polyatomic molecule in this or any other …

Aims. We present a study of the ionized, neutral atomic, and molecular gas associated with
the ring nebula RCW 78 around the WR star HD 117688 (= WR 55) with the aim of analyzing …

This paper presents the first observations of molecular gas associated with the Wolf-Rayet
ring nebula NGC 3199 around the WR star WR 18. This includes first observations of the …

NGC 2359 is a Wolf-Rayet (WR) nebula partially bound by a rather dense and warm
molecular cloud. We present the results derived from CO and 13 CO fully sampled maps of …

Aims. We analyze the carbon monoxide emission around the star WR 16 aiming to study the
physical characteristics of the molecular gas linked to the star and to achieve a better …