Dynamics of multicomponent stellar wind from hot stars
Project goals
AbstraktHot stars, namely spectral types O and B, show very strong radiatively driven stellar wind. Study and hydrodynamical simulations of stellar wind are one of the basic methods for theoretical description of observable spectral changes from that stars. It seems that usual one-component description is not valid for wind from some early B and dwarf O stars and it is necessary to use multicomponent description. In multicomponent description photon's momentum is transfered to absorbing ions and thoseheavy ions are sharing momentum with passive plasma (namely composed of protons) by dynamical friction. In this research I plan to use my own multicomponent time dependent code to study of multicomponent effect in these stars. Namely, I want to focus onthe study and description of runaway mechanism and influence of frictional heating on this effect. Moreover, I will expand the code to the two dimensions, because I plan to check the hypothesis about possible disc creation by multicomponent effects.
Keywords
Public support
Provider
Czech Science Foundation
Programme
Post-graduate (doctorate) grants
Call for proposals
Postdoktorandské granty 9 (SGA02009GA1PD)
Main participants
—
Contest type
VS - Public tender
Contract ID
205/09/P476
Alternative language
Project name in Czech
Dynamika vícesložkového hvězdného větru horkých hvězd
Annotation in Czech
Cílem tohoto projektu je studium vícesložkových efektů na dynamiku hvězdného větru horkých hvězd pomocí hydrodynamických simulací. Zaměří se především na roli oddělování složek plazmatu pro případnou tvorbu a strukturu disku okolo Be hvězd.
Scientific branches
Completed project evaluation
Provider evaluation
V - Vynikající výsledky projektu (s mezinárodním významem atd.)
Project results evaluation
The project was excellent, both in terms of expertise and in terms of disbursement of funds.
Solution timeline
Realization period - beginning
Jan 1, 2009
Realization period - end
Dec 31, 2011
Project status
U - Finished project
Latest support payment
Apr 16, 2011
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP12-GA0-GP-U/03:3
Data delivery date
May 2, 2016
Finance
Total approved costs
549 thou. CZK
Public financial support
549 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
0 thou. CZK
Basic information
Recognised costs
549 CZK thou.
Public support
549 CZK thou.
100%
Provider
Czech Science Foundation
CEP
BN - Astronomy and celestial mechanics, astrophysics
Solution period
01. 01. 2009 - 31. 12. 2011