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494 (0,081s) •

Project

Mass-loss in evolved massive stars (GA18-05665S)

mass-loss rate predictions in evolved massive stars. These predictionsMassive stars constitute one of the most important cosmic engines that drive radiation feedback is crucial for evolution of star forming galaxi...

Astronomy (including astrophysics,space science)

  • 2018 - 2020
    • •
  • 7 630 tis. Kč
    • •
  • 6 750 tis. Kč
    • •
  • GA ČR
Project

Tracing the mass-loss history in evolved massive stars (7AMB14AR017)

, evolved stars. This is of fundamental importance, because these objects display a shortbut nevertheless highly important role in the evolution of massive stars whichIn this collaboration project we will study the mass-los...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2014 - 2015
    • •
  • 320 tis. Kč
    • •
  • 320 tis. Kč
    • •
  • MŠMT
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 dis...

BN - Astronomie a nebeská mechanika, astrofyzika

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

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

The dynamics of dense star clusters with primordial binaries and massive black holes (GA20-21855S)

systems are to be studied in view of the ejections of stars and their dynamics code for rapidly dynamically pre-evolving a binary-rich initial stellar population clusters initialised with this pre-evolved population will a...

Astronomy (including astrophysics,space science)

  • 2020 - 2022
    • •
  • 6 085 tis. Kč
    • •
  • 6 085 tis. Kč
    • •
  • GA ČR
Project

B[e] supergiants where is their place within the evolution of massive stars? (KJB300030701)

Several phases during the evolution of massive stars are still not or not well indicates that they evolved from massive progenitors. Some of them show indication is to find their place in the evolution of massive stars. We ...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2007 - 2009
    • •
  • 1 624 tis. Kč
    • •
  • 1 624 tis. Kč
    • •
  • AV ČR
Project

Probing the populations of symbiotic stars and related red giant binaries (GN24-10608O)

Symbiotic stars are strongly interacting binaries with long orbital periods, containing an evolved red giant and a white dwarf or a neutron star. They are important the evolution and stellar and orbital characteristics of s...

Astronomy (including astrophysics,space science)

  • 2024 - 2027
    • •
  • 4 955 tis. Kč
    • •
  • 4 955 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

Formation of carbon molecules and dust in astrophysical environments (LUC24023)

objects that evolve on very different spatial and temporal scales in galaxies: (i) symbiotic binaries and (ii) star-forming regions. The main questions we want to answer are the following: 1) Can the surrounding dust shells around...

Other natural sciences

  • 2024 - 2026
    • •
  • 7 406 tis. Kč
    • •
  • 7 406 tis. Kč
    • •
  • MŠMT
  • 1 - 10 out of 494