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Author(s): Nazé, Yaël; Rauw, Grégor; smith, M.A.; Motch, c.
Source:
Proceedings of the International Astronomical Union (2024); IAU Symposium 361: Massive Stars Near and Far, Ballyconnell, Ireland [IE], 8-13 May 2022
Subject Terms:
Massive stars, Be disks, X-ray emission: stars; Physical, chemical, mathematical & earth Sciences; Space science, astronomy & astrophysics; Physique, chimie, mathématiques & sciences de la terre; Aérospatiale, astronomie & astrophysique
Document Type:
conference paper
http://purl.org/coar/resource_type/c_5794
conferenceObject
Language:
English
Online Access:
https://orbi.uliege.be/handle/2268/296527

Additional Information
- Contributors:
  STAR - Space sciences, Technologies and Astrophysics Research - ULiège
- Publication Information:
  Cambridge University Press, 2024.
- Publication Date:
  2024
- Abstract:
  Some Be stars were found to emit very bright and extremely hard thermal X-rays. This so-called γ Cas -star category is rapidly growing, showing that the phenomenon is far from being uncommon and its consequences on Be population feedback should be examined. The origin of this X-ray peculiarity is however much debated. In this contribution, we review the most recent observational clues and derive constraints on the cause of the phenomenon: properties of these stars (multiplicity status, photometric variability), X-ray reaction to disk changes, impact of stripped-star companions on the X-ray emission,…
- Relation:
  urn:issn:1743-9213; urn:issn:1743-9221
- Accession Number:
  10.1017/S1743921322003003
- Rights:
  open access
  http://purl.org/coar/access_right/c_abf2
  info:eu-repo/semantics/openAccess
- Accession Number:
  edsorb.296527

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