ζ Tau, a Post-interaction Binary

Yaël Nazé; Christian Motch; Gregor Rauw; Myron A. Smith; Jan Robrade

doi:10.25518/0037-9565.12333

Bulletin de la Société Royale des Sciences de Liège

0037-9565 1783-5720

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Yaël Nazé, Christian Motch, Gregor Rauw, Myron A. Smith & Jan Robrade

ζ Tau, a Post-interaction Binary

(Volume 93 - Année 2024 — No 3 - 41st Liège International Astrophysical Colloquium)

DOI: 10.25518/0037-9565.12333

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Abstract

Be stars are usually thought to be born in binary interactions. The presence of the companion has been proposed to play a role in the peculiar X-ray emission recorded for a subgroup of Be stars called the γ Cas analogs. In this contribution, we report on a multiwavelength investigation of one of them, the Be binary ζ Tau. Using data from TESS, Chandra, SRG/eROSITA, and XMM-Newton, we derive the high-energy properties as a function of time and orbital phase. The results are then used to test the proposed γ Cas models.

Keywords : X-rays: stars, Stars: Be, Stars: individual: zeta Tau

This work is distributed under the Creative Commons CC BY 4.0 Licence.

Paper presented at the 41^st Liège International Astrophysical Colloquium on “The eventful life of massive star multiples,” University of Liège (Belgium), 15–19 July 2024.

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Para citar este artículo

Yaël Nazé, Christian Motch, Gregor Rauw, Myron A. Smith & Jan Robrade, «ζ Tau, a Post-interaction Binary», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 93 - Année 2024, No 3 - 41st Liège International Astrophysical Colloquium, 250-255 URL : https://popups.uliege.be/0037-9565/index.php?id=12333.