Tracing stellar wind variability from space

D 2020

Tracing stellar wind variability from space

KRTIČKA, Jiří a A. FELDMEIER

Základní údaje

Originální název

Tracing stellar wind variability from space

Autoři

KRTIČKA, Jiří a A. FELDMEIER

Vydání

Vienna, Stars and their Variability Observed from Space, od s. 395-401, 7 s. 2020

Nakladatel

University of Vienna

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10308 Astronomy

Stát vydavatele

Rakousko

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

elektronická verze "online"

Odkazy

URL

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Stars: winds; outflows; mass-loss; early-type; variables; hydrodynamics

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 18. 12. 2020 08:57, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Mass-loss by winds constitute one of the crucial processes that determine the evolution and fate of stars. The amount of mass lost by a star per unit of time (the mass-loss rate) and its dependence on stellar parameters is therefore one of the crucial ingredients of any stellar evolutionary model. Being derived either from observation or theory, wind mass-loss rates are highly uncertain, in many cases by a factor of a few. The uncertainty in a determination of the mass-loss rate is to a large extent connected with the variability of the wind. We discuss how the observation of stellar winds from space can help trace the wind's variability and its origin, and how that knowledge can be used to derive more precise wind mass-loss rates.

Návaznosti

GA18-05665S, projekt VaV

Název: Ztráta hmoty v pozdních fázích vývoje hmotných hvězd

Investor: Grantová agentura ČR, Ztráta hmoty v pozdních fázích vývoje hmotných hvězd

Citovat

KRTIČKA, Jiří a A. FELDMEIER. Tracing stellar wind variability from space. Online. In C. Neiner, W. W. Weiss, D. Baade, R. E. Griffin, C. C. Lovekin, A. F. J. Moffat (eds). Stars and their Variability Observed from Space. Vienna: University of Vienna, 2020, s. 395-401.

@inproceedings{1711978,
   author = {Krtička, Jiří and Feldmeier, A.},
   address = {Vienna},
   booktitle = {Stars and their Variability Observed from Space},
   editor = {C. Neiner, W. W. Weiss, D. Baade, R. E. Griffin, C. C. Lovekin, A. F. J. Moffat (eds)},
   keywords = {Stars: winds; outflows; mass-loss; early-type; variables; hydrodynamics},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Vienna},
   pages = {395-401},
   publisher = {University of Vienna},
   title = {Tracing stellar wind variability from space},
   url = {https://starsandspace.univie.ac.at/fileadmin/user_upload/p_stars/Proceedings/2020starsconf..0395K.pdf},
   year = {2020}
}

TY  - CONF
ID  - 1711978
AU  - Krtička, Jiří - Feldmeier, A.
PY  - 2020
TI  - Tracing stellar wind variability from space
PB  - University of Vienna
CY  - Vienna
KW  - Stars: winds
KW  - outflows
KW  - mass-loss
KW  - early-type
KW  - variables
KW  - hydrodynamics
UR  - https://starsandspace.univie.ac.at/fileadmin/user_upload/p_stars/Proceedings/2020starsconf..0395K.pdf
L2  - https://starsandspace.univie.ac.at/fileadmin/user_upload/p_stars/Proceedings/2020starsconf..0395K.pdf
N2  - Mass-loss by winds constitute one of the crucial processes that determine the evolution and fate of stars. The amount of mass lost by a star per unit of time (the mass-loss rate) and its dependence on stellar parameters is therefore one of the crucial ingredients of any stellar evolutionary model. Being derived either from observation or theory, wind mass-loss rates are highly uncertain, in many cases by a factor of a few. The uncertainty in a determination of the mass-loss rate is to a large extent connected with the variability of the wind. We discuss how the observation of stellar winds from space can help trace the wind's variability and its origin, and how that knowledge can be used to derive more precise wind mass-loss rates.
ER  -

KRTIČKA, Jiří a A. FELDMEIER. Tracing stellar wind variability from space. Online. In C. Neiner, W. W. Weiss, D. Baade, R. E. Griffin, C. C. Lovekin, A. F. J. Moffat (eds). \textit{Stars and their Variability Observed from Space}. Vienna: University of Vienna, 2020, s.~395-401.

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