HD 76431 - An evolved hot subdwarf with variable magnetic field?
G. Chountonov, S. Geier
TL;DR
This study used high-resolution spectropolarimetry to measure the magnetic field of the evolved hot subdwarf HD 76431, finding no significant magnetic field but considering variability and searching for companions.
Contribution
First high-resolution spectropolarimetric measurement of HD 76431's magnetic field, exploring its potential variability and searching for companions.
Findings
No significant magnetic field detected.
Possible magnetic variability discussed.
Companion search results were inconclusive.
Abstract
We measured the magnetic field of the bright, evolved hot subdwarf HD 76431 by means of high-resolution spectropolarimetry. In contrast to previous measurements we were not able to detect a significant magnetic field. We discuss the possibility that this field may be variable. Our search for a possible companion star to HD 76431 led to inconclusive results.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astrophysics and Star Formation Studies