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- W410301137 abstract "Results from wind ionization cMculations are presented which show how the P-Cygni profiles of superionized species such as O VI can provide information about the X-ray source characteristics of early-type stars. Using detailed radiative and atomic physics models, we find that a significant source of X-ray emission from ~ Pup (04 If) comes from a region in the wind located within, roughly 1 to 2 stellar radii of the photosphere. Our results suggest that X-rays sources in which emission occurs exclusively at large radii (r ~> a few R,) are inconsistent with UV P-Cygni profiles for O VI. Instead, we find that X-ray emission from shocks distributed throughout the lower regions of the wind (r _'2 1 - 2 R,) is consistent with both X-ray and UV data, as well a.s mass loss rates deduced from radio and H~, observations." @default.
- W410301137 created "2016-06-24" @default.
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- W410301137 date "1994-01-01" @default.
- W410301137 modified "2023-09-26" @default.
- W410301137 title "CONSTRAINTS ON HOT S TAR X -RAY S OURCE CHARACTERISTICS F ROM C OMBINED A NALYSIS OF X-RAY A ND U V O BSERVATIONS" @default.
- W410301137 hasPublicationYear "1994" @default.
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