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UV Spectroscopy of Massive Stars

Hillier, D. John (2020) UV Spectroscopy of Massive Stars. Galaxies, 8 (3). p. 60. ISSN 2075-4434

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We present a review of UV observations of massive stars and their analysis. We discuss O stars, luminous blue variables, and Wolf–Rayet stars. Because of their effective temperature, the UV (912−3200 Å) provides invaluable diagnostics not available at other wavebands. Enormous progress has been made in interpreting and analysing UV data, but much work remains. To facilitate the review, we provide a brief discussion on the structure of stellar winds, and on the different techniques used to model and interpret UV spectra. We discuss several important results that have arisen from UV studies including weak-wind stars and the importance of clumping and porosity. We also discuss errors in determining wind terminal velocities and mass-loss rates.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Hillier, D. Johnhillier@pitt.eduhillier
Date: 12 August 2020
Date Type: Publication
Journal or Publication Title: Galaxies
Volume: 8
Number: 3
Publisher: MDPI AG
Page Range: p. 60
DOI or Unique Handle: 10.3390/galaxies8030060
Schools and Programs: Dietrich School of Arts and Sciences > Physics
Refereed: Yes
Uncontrolled Keywords: massive stars, O stars, Wolf–Rayet stars, UV, mass loss, stellar winds
ISSN: 2075-4434
Official URL:
Article Type: Review
Date Deposited: 14 Dec 2021 14:16
Last Modified: 14 Dec 2021 14:16


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