Brankica

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Fields of research

Stellar winds of hot massive stars
Radiative transfer in inhomogeneous medium
Monte Carlo Radiative Transfer method
Quantitative spectroscopy - modeling and analysing massive star spectra

Three-dimensional radiative transfer in clumped hot star winds

During my PhD study I developed a full 3-D Monte Carlo Radiative Transfer code for inhomogeneous expanding stellar winds and investigate how different model parameters influence the resonance line formation.

Reference: Three-dimensional radiative transfer in clumped hot star winds. I. Influence of clumping on the resonance line formation
Šurlan, B.; Hamann, W.-R.; Kubát, J.; Oskinova, L. M.; Felmeier, A., Astronomy & Astrophysics, 541, A37.

Discrepancy between H α and P v mass loss diagnostics

During my postdoc I further developed the 3-D Monte Carlo radiative transfer code for inhomogeneous expanding stellar winds and apply it to O-type stars. For this purpose I also learned to use the Potsdam Wolf-Rayet (PoWR) non-LTE model
atmospheres code to simulatate the observed spectra.

Reference: Macroclumping as solution of the discrepancy between H α and P v mass loss diagnostics for O-type stars
Šurlan, B.; Hamann, W.-R.; Aret, A.; Kubát, J.; Oskinova, L. M.; Torres, A. F. Astronomy & Astrophysics, 559, A130

Teaching expiriences

Winds of hot massive stars

Lectures within the course of the Selected Capitol in Astrophysics, Faculty of Mathematics and Physics, Charles University in Prague, October-November 2013

Stellar winds and unified model atmospheres

Lectur given at the Faculty of Physics and Astronomy and University of Wroclaw, November 2017

Lecture

Posters

Poster presented at the meeting in honor of Ivan Hubeny “RADIATIVE SIGNATURES FROM THE COSMOS”, October 23 – 26, 2018, Paris

Poster