sdO and peculiar X-ray emissions

被引：0
|
作者：
Nazé Y. [1 ,2 ]
Rauw G. [1 ]
Smith M.A. [3 ]
Motch C. [4 ]
机构：
[1] Groupe d’Astrophysique des Hautes Energies, STAR, Université de Liège, Allée du 6 Août 19c (B5C), Liège
[2] NSF OIR Lab, 950 N Cherry Ave, Tucson, 85721, AZ
[3] Université de Strasbourg, CNRS, Observatoire Astronomique de Strasbourg, UMR 7550, 11 rue de l’Université, Strasbourg
来源：
Bulletin de la Societe Royale des Sciences de Liege | 2023年 / 92卷 / 02期
关键词：
binaries: general; stars: early-type; stars:; emission-line; Be; stars: massive; X-rays: stars;
D O I：
10.255118/0037-9565.11226
中图分类号：
学科分类号：
摘要：
Some Be stars exhibit a bright and extremely hard X-ray emission, whose origin is debated. In this context, it has been advocated that stripped helium-star sdO companions could play a significant role. Using high quality datasets, we examined (1) the binarity of these peculiar Be stars and (2) the X-ray emission of known Be+sdO systems. In this contribution, we present the result of these two studies and assess their impact on the proposed scenario. © 2023 Societe Royale des Sciences de Liege. All rights reserved.
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