Institute of Astronomy,
Nicolaus Copernicus University,
ul. Gagarina 11,
87-100 Torun, Poland

Phone:+48 56 611 30 34
e-mail: lp.kmu.ortsa@tak
(Warning, do not copy this e-mail with Crl-C)

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Research interests - multifrequency activity of Active Galactic Nuclei, from radio frequencies up to very high energy gamma rays, radiative processes - especially synchrotron emission and inverse-Compton scattering, and also particle acceleration inside astrophysical jets.

A few examples of my work

Multifrequency emission of Mrk 501. A simple explanation of the high energy emission of TeV blazars. Rapid variability of PKS 2155-304. Do we really need to assume very fast blobs to explain such rapid variability?
Astrophysical models, restricted access. Papers, presentations, exercises, restricted access.

For students

C/C++ programming and numerical methods, restricted access. Astrophysical jets - lecture, restricted access.
Radio astronomy laboratory, restricted access. Python programming, restricted access.
High Energy Astrophysics, restricted access. Python in astronomical exercises, restricted access.
High Energy Astrophysics for Physicists, restricted access. Mathematical Methods in Astronomy, restricted access.
Python and astro-statistic, restricted access. Programming for beginners, restricted access.
Numerical methods - Python course, restricted access.

Selected publications

Aharonian, F., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) Discovery of a radiation component from the Vela pulsar reaching 20 teraelectronvolts 2023 Nature Astro, 7, 1341
Abdalla, H., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) Time-resolved hadronic particle acceleration in the recurrent nova RS Ophiuchi 2022 Science, 376, 77
Abdalla, H., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) Revealing x-ray and gamma ray temporal and spectral similarities in the GRB 190829A afterglow 2021 Science, 372, 1081
Abdalla, H., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) Resolving acceleration to very high energies along the jet of Centaurus A 2020 Nature, 582, 356
Abdalla, H., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) Resolving the Crab pulsar wind nebula at teraelectronvolt energies 2020 Nature Astro, 4, 167
Abdalla, H., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) A very-high-energy component deep in the γ-ray burst afterglow 2019 Nature, 575, 464
Goździewski, K., Gawroński, M., Katarzyński, K. & Rycyk, G., Another look at AM Herculis - radio-astrometric campaign with the e-EVN at 6 cm 2018 MNRAS, 475, 1399
Abbott, B. P., ... Katarzyński, K., et al. Multi-messenger Observations of a Binary Neutron Star Merger 2017 ApJL, 848, 59
Gawroński, M., Goździewski, K., & Katarzyński, K., Physical properties and astrometry of radio-emitting brown dwarf TVLM 513-46546 revisited 2017 MNRAS, 466, 4211
Katarzyński, K., Gawroński, M., & Goździewski, K. Search for exoplanets and brown dwarfs with VLBI 2016 MNRAS, 461A, 929
Abramowski, A., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) Acceleration of petaelectronvolt protons in the Galactic Centre 2016 Nature 531, 476
Kunert-Bajraszewska, M., Cegłowski, M., Katarzyński, K., Roskowinski, C. A VLBI survey of compact broad absorption line quasars with balnicity index BI > 0 2015 A&A, 579A, 109
Kunert-Bajraszewska, M., Katarzynski, K., Janiuk, A. Broadband nuclear emission in two radio-loud broad absorption line quasars 2015 A&A, 574A, 110
Abramowski, A., ... Katarzyński, K., et al. (H.E.S.S. Collaboration) The exceptionally powerful TeV gamma-ray emitters in the Large Magellanic Cloud 2015 Science, 347, 406
Sol, H., Zech, A., Boisson, C., ... Katarzynski, K., et al. Active Galactic Nuclei under the scrutiny of CTA 2013 APh, 43, 215S
Katarzynski, K. Hard MeV-GeV spectra of blazars 2012 A&A, 537A, 47
Katarzynski, K. & Walczewska, K. On the correlation between the X-ray and gamma-ray emission in TeV blazars 2010 A&A, 510A, 63
Acero,F., ... Katarzynski, K., et al. (H.E.S.S. Collaboration)
Detection of Gamma Rays from a Starburst Galaxy 2009 Science, 326, 1080
Acciari, V. A., ... Katarzynski, K. et al. (H.E.S.S. Collaboration)
Radio Imaging of the Very-High-Energy γ-Ray Emission Region in the Central Engine of a Radio Galaxy 2009 Science, 325, 444
Kunert-Bajraszewska, M., Siemiginowska, A., Katarzynski, K., Janiuk, A. X-rays from a Radio-Loud Compact Broad Absorption Line Quasar 1045+352 and the Nature of Outflows in Radio-Loud Broad Absorption Line Quasars 2009 ApJ, 705, 1356
Katarzynski, K., Lenain, J.-P., Zech, A., Boisson, C., Sol, H. Modelling rapid TeV variability of PKS2155-304 2008 MNRAS, 390, 371
Lenain, J. P., Boisson, C., Sol, H., &, Katarzynski, K. A synchrotron self-Compton scenario for the very high energy gamma-ray emission of the radiogalaxy M87 2008 A&A, 478, 111
Katarzynski, K. & Ghisellini, G. Dissipation of jet bulk kinetic energy in powerful blazars 2007 A&A, 463, 529
Katarzynski, K., Ghisellini, G., Mastichiadis, A., Tavecchio, F., & Maraschi,L. Stochastic particle acceleration and synchrotron self-Compton radiation in TeV blazars 2006 A&A, 453, 47
Katarzynski, K., Ghisellini, G., Svensson, R., & Gracia, J. The cyclo-synchrotron process and particle heating through the absorption of photons 2006 A&A, 451, 739K
Katarzynski, K., Ghisellini, G., Tavecchio, F., Gracia, J., & Maraschi, L. Hard TeV spectra of blazars and the constraints to the infrared intergalactic background 2006 MNRAS, 368L, 52

and my other papers at SAO/NASA Astrophysics Data System

Copyright © K. Katarzynski 2022. All rights reserved.