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7 610 (0,099s) •

Project

The Complex Study of Rapid Variability of Early-Type Stars (GA205/93/0895)

BN - Astronomie a nebeská mechanika, astrofyzika

  • 1993 - 1995
    • •
  • 138 tis. Kč
    • •
  • 276 tis. Kč
    • •
  • GA ČR
Project

Aperiodic short-term phenomena in Be star spectra as potential magnetic field (IAA3003403)

exist,which are presently not otherwise detectable in early-type starsDisks of many Be stars are known to form through outbursts. In some stars, non pulsation variability, Be star absorption line...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2004 - 2005
    • •
  • 511 tis. Kč
    • •
  • 141 tis. Kč
    • •
  • AV ČR
Project

On the evolutionary stage and disk formation mechanism of B[e] stars (7AMB12AR021)

We propose to investigate the evolutionary stage and the disk formation mechanism of the peculiar group of luminous B-type emission line stars by a combined observational and theoretical study. We aim at developing new multi-dimensi...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2012 - 2013
    • •
  • 320 tis. Kč
    • •
  • 320 tis. Kč
    • •
  • MŠMT
Project

Unveiling the mass-loss history of evolved massive stars (GA14-21373S)

The post-main sequence evolution of massive stars contains several short-lived phases such as the luminous blue variable and the B[e] supergiant phase, in which stars experience strong, often eruptive, (quasi-)periodic mass ejection...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2014 - 2016
    • •
  • 4 997 tis. Kč
    • •
  • 4 997 tis. Kč
    • •
  • GA ČR
Project

Sphaera octava. Historical development of the ideas about the sphere of fixed stars (GAP405/11/0034)

The goal of the present project is to study selected Latin treatises crucial for the development of astronomy from late antiquity through Middle Ages up to early modern times attention will be paid to tracing the evolution of ideas on the fi...

AB - Dějiny

  • 2011 - 2015
    • •
  • 2 805 tis. Kč
    • •
  • 2 805 tis. Kč
    • •
  • GA ČR
Project

Spectroscopical study of active stars type B with spectograph Heros (ME 531)

Star type B...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2002 - 2003
    • •
  • 470 tis. Kč
    • •
  • 110 tis. Kč
    • •
  • MŠMT
Project

Molecules in the environments of evolved massive stars (GA17-02337S)

Recent analysis of the circumstellar material of B[e] supergiants (B[e]SGs) revealed the surprising result that these stars are surrounded by multiple Keplerian rings of gas, molecules, and dust. So far, only few ring tracers exist, and a mo...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2017 - 2019
    • •
  • 5 499 tis. Kč
    • •
  • 5 076 tis. Kč
    • •
  • GA ČR
Project

Dynamics of multicomponent stellar wind from hot stars (GP205/09/P476)

AbstraktHot stars, namely spectral types O and B, show very strong radiatively 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 ...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2009 - 2011
    • •
  • 549 tis. Kč
    • •
  • 549 tis. Kč
    • •
  • GA ČR
Project

Structure and evolution of stellar ejecta (GA20-00150S)

Optical and infrared imaging revealed that massive stars are often surrounded by large-scale nebula, witnesses of mass ejection phases. The massive B[e] stars display intense emission, characteristic for dense circumstellar nebulae....

Astronomy (including astrophysics,space science)

  • 2020 - 2023
    • •
  • 6 106 tis. Kč
    • •
  • 6 106 tis. Kč
    • •
  • GA ČR
Project

Circumstellar environment of evolved hot stars (GAP209/11/1198)

The existence of gas and dust in form of a debris disk around hot evolved stars is puzzling, especially when dealing with stars that cannot be surrounded by pre-main sequence disks anymore. The finding of dense and cool disks thus i...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2011 - 2013
    • •
  • 3 656 tis. Kč
    • •
  • 3 656 tis. Kč
    • •
  • GA ČR
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