Wind inhibition in HMXBs: The effect of clumping and implications for X-ray luminosity
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00522607" target="_blank" >RIV/67985815:_____/19:00522607 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1017/S1743921318007573" target="_blank" >http://dx.doi.org/10.1017/S1743921318007573</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/S1743921318007573" target="_blank" >10.1017/S1743921318007573</a>
Alternative languages
Result language
angličtina
Original language name
Wind inhibition in HMXBs: The effect of clumping and implications for X-ray luminosity
Original language description
Winds of hot stars are driven by the radiative force due to absorption of light in the lines of heavier elements. Consequently, the mass-loss rate and the wind velocity depend on the ionization state of the wind. As a result of this, there is a feedback between the ionizing X-ray source and the stellar wind in HMXBs powered by wind accretion. We study the influence of the small-scale wind structure (clumping) on this feedback using our NLTE hydrodynamical wind models. We find that clumping weakens the effect of X-ray irradiation. Moreover, we show that the observed X-ray luminosities of HMXBs can not be explained by wind accretion scenario without introducing the X-ray feedback. Taking into account the feedback, the observed and estimated X-ray luminosities nicely agree. We identify two cases of X-ray feedback with low and high X-ray luminosities that can explain the dichotomy between SFXTs and sgXBs.n
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA18-05665S" target="_blank" >GA18-05665S: Mass-loss in evolved massive stars</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
High-mass X-ray Binaries: Illuminating the Passage from Massive Binaries to Merging Compact Objects.
ISBN
9781108471589
ISSN
1743-9213
e-ISSN
1743-9221
Number of pages
3
Pages from-to
28-33
Publisher name
Cambridge University Pres
Place of publication
Cambridge
Event location
Vienna
Event date
Aug 27, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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