Members

Michaela Kraus

Michaela is a senior researcher and a head of the Working group Physics of Hot Stars. Her research is dedicated to evolved massive stars with focus on B[e] supergiants, Yellow Hypergiants, Luminous Blue Variables, and classical blue supergiants. She is investigating their pulsation and mass-loss behavior, as well as the dynamics and chemistry of their circumstellar matter and the interaction of the ejected material with the local interstellar medium. For her research she developed several numerical codes that are continuously improved and used to analyze and interpret observational data from the optical up to the radio regime.

Contacts:


Pavel Koubský

Pavel is a emeritus scientis. His main research interests are early-type stars and their rapid variability, close binaries, and Be stars. In past he served as a head of the Stellar Physics department and a head of the Working Group Physics of Hot Stars, He also was the meamber of the Institute Council of the ASU. He was responsible for two upgrades of the Perek 2m telescope in the period 1982-1987 and 1996-1198.

Contacts:

  • email: pavel.koubsky @ asu.cas.cz
  • phone:
  • personal website:

Jiří Kubát

Jiří is a senior researcher. His main research interests are radiative transfer and radiation-matter interactions (NLTE physics), modelling of stellar atmospheres and stellar winds. He is an author of a computer code for calculations of NLTE model stellar atmospheres and their emergent radiation. In past he served as a head of the Stellar Physics department, as a deputy director of the Astronomical Institute, and as a member of the Institute Council. Currently he represents the Czech Republic as a member of the Board of Directors of the international scientific journal Astronomy and Astrophysics.

Contacts:


Petr Škoda

Petr is a senior researcher. He has been working at the institute over thirty years. Most of this time was connected with modern astronomical instrumentation, namely CCD detectors, telescope control systems and computers. He has been leading several projects in astroinformatics at Faculty of Information technology of Czech Technical University in Prague and is a propagator and early adopter of the Virtual observatory in Czech Republic. His main interest is CCD spectroscopy of emission line objects, machine learning and analysis of Big Data in astronomy.

Contacts:

  • email: petr.skoda @ asu.cas.cz
  • phone: +420 323 620 361
  • personal website:

Brankica Kubátová

Brankica is a research scientistis and a head of the Stellar Physics Department. Her main expertise lies in the area of hot, massive stars and their winds. , She is most known for work on the radiative transfer in inhomogeneous (i.e., clumped) stellar winds. Her research aims to test how physical processes in the stellar winds influence mass-loss rates determination. She is also interested in quantitative spectroscopy, i.e., analysing spectroscopic data by means of detailed quantitative modelling in order to determined accurate values of the stellar and winds parameters.

Contacts:


Péter Németh

Peter is a research scientistis. He investigates hot subdwarf stars and binaries. He applies TLUSTY atmosphere models to reproduce ultraviolet and optical spectral observations. His field of research also includes the spectroscopy of chemically peculiar stars, evolved, compact objects, as well as spectral disentangling and the modeling of radiative interactions in close binary systems.

Contacts:


Olga Maryeva

Olga is a research scientistis. Before coming to the Czech Republic, she worked at Russian 6-m telescope (Special Astrophysical observatory), where she defended my PhD in 2016. Her main field is an investigation of evolved massive stars on the stages when the hydrogen is already exhausted in their cores, and the stars are rapidly evolving towards supernova explosion. Her goal is to understand the physics of processes leading to the transition between various evolutionary stages, and the evolutionary links between such groups of objects as Blue Supergiants, Luminous Blue Variables, Red Supergiants and Wolf-Rayet stars.

Contacts:

  • email: olga.maryeva @ asu.cas.cz
  • phone: +420 323 620 141
  • personal website:

Postdocs

Tiina Liimets

Tiina is a postdoc. She investigate the morphology and kinematics of ejecta from evolved stars. Her main expertise lies in analysing the multi-epoch imaging and spectral observations in optical waveband.

Contacts:

  • email: tiina.liimets @ asu.cas.cz
  • phone: +420 323 620 136
  • personal website:

Julieta Sanchez Arias

Julieta is a postdoc. After obtaining her PhD at La Plata National University in Argentina, Julieta developed her research activities as a postdoc at the Astrophysics Institute of La Plata for one year. Currently, she is a postdoc at the ASU. Her main interest is the study of stellar oscillations through the development of stellar models and the analysis of light curves. At present, she is focused on pulsations of massive stars and its connection with the stellar winds, but she is also interested in pulsating A-F stars, low mass WDs and hot-Jup planets.

Contacts:

  • email: julieta.sanchez @ asu.cas.cz
  • phone: +420 323 620 141
  • personal website: