Walborn, NR;
Morrell, NI;
Naze, Y;
Wade, GA;
Bagnulo, S;
Barba, RH;
Maiz Apellaniz, J;
... Sota, A; + view all
(2015)
Spectral Variations Of Of?p Oblique Magnetic Rotator Candidates In The Magellanic Clouds.
Astronomical Journal
, 150
(4)
, Article 99. 10.1088/0004-6256/150/4/99.
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Abstract
Optical spectroscopic monitoring has been conducted of two O stars in the SMC and one in the LMC, the spectral characteristics of which place them in the Of?p category, which has been established in the Galaxy to consist of oblique magnetic rotators. All of these Magellanic stars show systematic spectral variations typical of the Of?p class, further strengthening their magnetic candidacy to the point of virtual certainty. The spectral variations are related to photometric variations derived from Optical Gravitational Lensing Experiment data by Nazé et al. in a parallel study, which yields rotational periods for two of them. Now circular spectropolarimetry is required to measure their fields, and ultraviolet spectroscopy to further characterize their low-metallicity, magnetically confined winds, in support of hydrodynamical analyses.
| Type: | Article |
|---|---|
| Title: | Spectral Variations Of Of?p Oblique Magnetic Rotator Candidates In The Magellanic Clouds |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/0004-6256/150/4/99 |
| Publisher version: | https://doi.org/10.1088/0004-6256/150/4/99 |
| Language: | English |
| Additional information: | This is the published version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Magellanic Clouds; stars: early-type; stars: emission-line, Be; stars: magnetic field; stars: rotation; stars: variables: general |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1499846 |
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