mgr inż. Stanisław Ryzner

ORCID: 0000-0002-9065-7780

The topic of my dissertation is: “Fourier-transform spectroscopy of the ¹³C¹⁸O isotopologue and deperturbation analysis of the A¹Π(v = 0 - 5) states”

Main field of my interest is Fourier transform spectroscopy of diatomic molecules, in particular carbon monoxide. That molecule has a very large significance for astronomy and astrophysics, because it is the second, besides molecular hydrogen, most abundant compound of the interstellar medium (ISM). Carbon monoxide is also present in atmospheres of planets and exoplanets, comet tiles, circumstellar discs, interstellar clouds, nebulae and is detected even in Solar spectra.

My goal is to obtain spectra of the ¹³C¹⁸O isotopologue, interpret them and perform a full deperturbation analysis of the v = 0 – 5 vibrational levels of the A¹Π electron state. I am going to study the A¹Π state, because it has one of the most complex energy structures among all electronic states of diatomic molecules. The complexity of A¹Π comes from many types of extensive and multi-state perturbations. Thus, the attempts to investigate this state are a noteworthy scientific challenge.

The results of my work are expected to provide meaningful experimental information that is needed in many astronomical and astrophysical applications.

Publications:

1. I. Malicka, S. Ryzner, A. N. Heays, N. De Oliveira, R. Field, W. Ubachs, R. Hakalla, High‑resolution Fourier-transform spectroscopy and deperturbation analysis of the A¹Π(v = 1) level in ¹²C¹⁸O, Journal of Quantitative Spectroscopy and Radiative Transfer, 255: 107243 (2020) (MNiSW points: 100; IF: 3,05)
2. I. Malicka, S. Ryzner, A. N. Heays, N. De Oliveira, R. Field, W. Ubachs, R. Hakalla, Deperturbation analysis of the A¹Π(v = 2) level in the ¹²C¹⁸O isotopologue, Journal of Quantitative Spectroscopy and Radiative Transfer, 273: 107837 (2021) (MNiSW points: 100; IF: 3,05)
3. Ryzner, M. I. Malicka, A. N. Heays, R. Field, N. De Oliveira, W. Szajna, W. Ubachs, R. Hakalla, VUV–VIS FT spectroscopy of the rare ¹³C¹⁸O isotopologue of carbon monoxide: Analysis of the A¹Π(v = 1) multiply-perturbed level, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 279: 121367 (2022) (MNiSW points: 140; IF: 4.10)

Internships:

1. Vrije University, Department of Physics and Astronomy, Amsterdam, Nederlands (prof. Wim Ubachs)
2. Massachusetts Institute of Technology, Department of Chemistry, Cambridge, USA (prof. Robert W. Field)
3. Synchrotron SOLEIL, Orme de Merisiers, St. Aubin, Cedex, France (dr Nelson de Oliveira)
4. J. Heyrovský Institute of Physical Chemistry, Praga, Czech Republic (dr Alan Heays)