First bounds on the VHE gamma-ray emission from isolated Wolf-Rayet binary systems
Diego F. Torres, Javier Rico, Vincenzo Vitale (for the MAGIC, Collaboration)
TL;DR
This paper reports the first experimental upper limits on very high energy gamma-ray emission from isolated Wolf-Rayet binary systems WR147 and WR146, using observations from the MAGIC telescope.
Contribution
It provides the first observational constraints on VHE gamma-ray emission from isolated Wolf-Rayet binaries, testing theoretical models.
Findings
No significant VHE gamma-ray emission detected from WR147 and WR146.
Established upper limits on gamma-ray flux from these systems.
Results challenge some existing models predicting strong VHE emission.
Abstract
Different theoretical models predict VHE gamma-ray emission to arise in tight binary star systems (high mass-loss and high wind speeds), which has not been confirmed experimentally so far. Here we present the first bounds on the VHE emission from two isolated Wolf-Rayet star binaries, WR147 and WR146, obtained with the MAGIC telescope.
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Taxonomy
TopicsNuclear physics research studies · Astro and Planetary Science · Dark Matter and Cosmic Phenomena