Doctoral Theses Realized at Institute

Defended in 2010

Determination of Resonance Parameters from Experimental Data

Martin Vojík (2010)

Supervisor: Prof. Peter Lichard

Thesis; Extended abstract

Referee report (Prof. Rupert Leitner)

Supervisor report (Prof. Peter Lichard)

Equations of state and structure of neutron stars

Martin Urbanec (2010)

Supervisor: Prof. Zdeněk Stuchlík

Annotation

The work is focused on the equations of state of neutron star matter and on its impact on neutron star properties. The author also focus particular interest on the impact of rotation on the neutron star models.

Thesis; Extended abstract

Referee report (Prof. Vladimír Karas)

Referee report (Prof. John Miller)

Oscilations of Disc Structures Around Compact Objects

Collection of annotated papers

Eva Šrámková (2010)

Advisor: Prof. Zdeněk Stuchlík
External Advisor: Prof. Marek Abramowicz, Ph.D.

Annotation (shortened)

The papers comprehend several topics that have been the subject of research during my doctoral study. In accordance with the title of dissertation, they are mostly allied to oscillations of disc-like structures in strong gravitational fields. Particular emphasis is placed on epicyclic oscillations, whether it is in connection with oscillatory modes of fluid tori, or simple test particle motion. Most of the studies were at least partially motivated by the widely discussed observational phenomenon of high-frequency quasi-periodic oscillations (HF QPOs) observed in the X-ray fluxes of various neutron star and black hole low mass X-ray binaries (LMXBs)...

From Ph.D. Thesis of Eva Šrámková

Thesis (pdf 6.5MB); Extended abstract (pdf 2MB)

Referee report (Prof. Vladimír Karas)

Referee report (Prof. Jan Novotný)

Supervisor report (Prof. Zdeněk Stuchlík)

On some Aspects of Optical Effects in the Vicinity of Black Holes and Neutron Stars

Collection of annotated papers

Pavel Bakala (2010)

Supervisor: Prof. Zdeněk Stuchlík

Tutor: Dr. Stanislav Hledík

Thesis (pdf 8.9MB); Extended Abstract (pdf 3MB)

Referee report (Prof. Vladimír Karas)

Referee report (Prof. Oldřich Semerák)

Supervisor report (Prof. RNDr. Zdeněk Stuchlík, CSc.)

Defended in previous years

Optical phenomena in curved spacetimes

Jan Schee (2009)

Supervised by Prof. Zdeněk Stuchlík

Extended abstract (pdf 1.5MB)

On Some Aspects of High Frequency Quasiperiodic Oscillations in X-ray Fluxes of Accreting Compact Objects

Gabriel Török (2008)

Supervised by Prof. Zdeněk Stuchlík and Prof. Marek Abramowicz

Abstract

Quasiperiodic oscillations (QPOs) are observed in various neutron star and black hole X-ray binaries. A special kind of QPOs corresponds to the kilohertz frequency range. Existence of these kHz QPOs attract a large part of the astrophysical community due to a possible link to the orbital motion in strong gravity close to the binary central compact object. In this paper we discuss in detail some of the kHz QPO properties (such as frequency values, coherence times and strength of modes). Number of implications (as well as estrictions) for (certain) QPO models are outlined. We focuse especially on the arguments supporting the orbital resonance models and possible uniqueness of the kHz QPO phenomena in both black hole and neutron star sources.

Artists View of Low-Mass X-Ray Binary (Mark A. Garlick)

Extended Abstract (pdf 1.2MB); Thesis (pdf 9MB)

Interaction of mesons in hadronic medium and related processes

Josef Juráň (2008)

Supervised by Prof. Peter Lichard

Abstract (shortened)

The thesis Interaction of mesons in hadronic medium and related processes deals with the behaviour and properties of mesons in a hot and dense hadronic medium such as created in the relativistic heavy ion collisions. Firstly, we generally discuss some properties of the particles which have a connection with the motion of the particles in the hadronic medium; concretely the rate, collision width, and mean free path. We derive general formulas for describing such properties. Secondly, we apply these formulas to particular processes.