The modulated X-ray emission of the magnetic O8.5V-star Tr16-22
Yael Naze (ULg), Gregg Wade (RMC), Veronique Petit (UoD - FIT)
TL;DR
This study analyzes the X-ray emission of the magnetic O8.5V star Tr16-22, revealing its brightness varies with a 54-day period likely linked to stellar rotation, supported by spectropolarimetric confirmation.
Contribution
It provides the first detailed analysis of X-ray modulation in Tr16-22, confirming its magnetic nature and rotational period through extensive data.
Findings
X-ray emission is modulated with a ~54-day period.
Spectropolarimetric data confirm magnetic detection.
X-ray brightness variation linked to stellar rotation.
Abstract
Using an extensive X-ray dataset, we analyze the X-ray emission of the massive O-star Tr16-22, which was recently found to be magnetic. Its bright X-ray emission is found to be modulated with a ~54d period. This timescale should represent the rotational timescale of the star, as for other magnetic massive stars. In parallel, new spectropolarimetric data confirm the published magnetic detection.
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