High energy processes in Wolf‐Rayet stars. Issue 1 (28th March 2019)

• Record Type: Journal Article
• Authors: Skinner, S. L.; Schmutz, W.; Güdel, M.; Zhekov, S.
• Other Names: Zen Vasconcellos C. A. guestEditor.; Solano J. guestEditor.; Horvath J. guestEditor.; Machado M. guestEditor.; Gamarra M. guestEditor.; Razeira M. guestEditor.; Hess P. guestEditor.; González Felipe R. guestEditor.; Boller Th. guestEditor.
• Is Part Of: Astronomische Nachrichten. Volume 340:Issue 1/3(2019)
• Page Start: 50
• Page End: 53
• Publication Date: 2019-03-28
• Subjects: stars: Wolf‐Rayet -- stars: individual (CQ Cep) -- X‐rays: stars; Astronomy -- Periodicals; 520.5
• DOI: 10.1002/asna.201913558
• Languages: English
• ISSNs: 0004-6337

Abstract

Abstract : Wolf‐Rayet (WR) stars are massive (≥10 M⊙ ) evolved stars undergoing advanced nuclear burning in their cores, rapidly approaching the end of their lives as supernovae. Their powerful winds enrich the interstellar medium with heavy elements, providing raw material for future generations of stars. We briefly summarize high‐energy processes in WR stars, focusing mainly on their X‐ray emission. We present new results from Chandra observations of the eclipsing WR + O binary CQ Cep covering a full orbit which stringently test X‐ray emission models.