No evidence of a sudden change of spectral appearance or magnetic field strength of the O9.7V star HD 54879
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| Publication date | 02-2020 |
| Journal | Monthly Notices of the Royal Astronomical Society. Letters |
| Volume | Issue number | 492 | 1 |
| Pages (from-to) | L1-L5 |
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| Abstract | It was recently claimed that the magnetic O-type star HD 54879 exhibits important radial velocity variability indicative of its presence in a spectroscopic binary. More remarkably, it was furthermore reported that the star underwent a short, sudden variation in spectral type and magnetic field. In this letter, we examine new Narval and ESPaDOnS data of this star in addition to the previously published FORS2 data and conclude that both the reported velocity variations and the sudden spectral and magnetic changes are spurious. |
| Document type | Article |
| Note | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2020 published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
| Language | English |
| Published at | https://doi.org/10.1093/mnrasl/slz174 |
| Other links | https://ui.adsabs.harvard.edu/abs/2020MNRAS.492L...1W/abstract |
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No evidence of a sudden change of spectral appearance
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