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Magnetic OB[A] Stars with TESS: probing their Evolutionary and Rotational properties (MOBSTER) - I. First-light observations of known magnetic B and A stars
Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
Univ Paris Diderot, Sorbonne Univ, PSL Univ, LESIA,Observ Paris,CNRS,Sorbonne Paris Cite, 5 Pl Jules Janssen, F-92195 Meudon, France.
Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada;Royal Mil Coll Canada, Dept Phys & Space Phys, POB 17000, Kingston, ON K7K 7B4, Canada.
Katholieke Univ Leuven, Inst Sterrenkunde, Celestijnenlaan 200D, B-3001 Leuven, Belgium.
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2019 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 487, no 1, p. 304-317Article in journal (Refereed) Published
Abstract [en]

In this paper we introduce the MOBSTER collaboration and lay out its scientific goals. We present first results based on the analysis of 19 previously known magnetic O, B, and A stars observed in 2-min cadence in sectors 1 and 2 of the Transiting Exoplanet Survey Satellite (TESS) mission. We derive precise rotational periods from the newly obtained light curves and compare them to previously published values. We also discuss the overall photometric phenomenology of the known magnetic massive and intermediate-mass stars and propose an observational strategy to augment this population by taking advantage of the high-quality observations produced by TESS.

Place, publisher, year, edition, pages
2019. Vol. 487, no 1, p. 304-317
Keywords [en]
techniques: photometric, stars: early-type, stars: magnetic field, stars: rotation
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-390979DOI: 10.1093/mnras/stz1181ISI: 000474907100023OAI: oai:DiVA.org:uu-390979DiVA, id: diva2:1343871
Funder
EU, European Research Council, 670519Available from: 2019-08-19 Created: 2019-08-19 Last updated: 2019-08-19Bibliographically approved

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Kochukhov, Oleg

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