Krzysztof Nalewajko

język polski / Polish language:


PhD student at Nicolaus Copernicus Astronomical Center (NCAC) of Polish Academy of Science (PAS)


What do I do?

I work under a supervision of Prof. Marek Sikora on relativistic jets in active galactic nuclei. Our study focuses on their geometrical structure, energy dissipation mechanisms and non-thermal radiative processes.

Specific skills

Modeling of nonthermal leptonic processes in the context of blazars, including synchrotron radiation with polarization and self-absorption, Inverse Compton scattering with full cross section, evolution of electron distribution, pair production absorption, special-relativistic effects.

Analysis of data from Fermi Large Area Telescope.


Contact

ul. Bartycka 18
00-716 Warszawa
POLAND

e-mail: knalew at camk.edu.pl
tel: (0048-22)-3296-105


Publications

K. Nalewajko, D. Giannios, M. C. Begelman, D. A. Uzdensky & M. Sikora - Radiative Properties of Reconnection-Powered Minijets in Blazars (submitted to MNRAS, arXiv:1007.3994, 22.07.2010)

The Fermi-LAT collaboration - Fermi Gamma-ray Space Telescope Observations of Recent Gamma-ray Outbursts from 3C 454.3 (accepted for publication in ApJ, arXiv:1007.0483, 03.07.2010)

The Fermi-LAT Collaboration and members of the 3C 279 multi-band campaign - A change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279 (Nature 463, 919, 18.02.2010)

M. Sikora, Ł. Stawarz, R. Moderski, K. Nalewajko & G. Madejski - Constraining Emission Models of Luminous Blazar Sources (ApJ 704, 38, 10.10.2009)

K. Nalewajko - Polarization of synchrotron emission from relativistic reconfinement shocks (MNRAS 395, 524, 05.2009)

K. Nalewajko & M. Sikora - Reconfinement shocks in relativistic AGN jets (proceedings of the 4th Heidelberg International Symposium on High Energy Gamma-Ray Astronomy, AIPC 1085, 483, 02.2009)

K. Nalewajko & M. Sikora - A structure and energy dissipation efficiency of relativistic reconfinement shocks (MNRAS 392, 1205, 01.2009)

G. Pietrzyński, W. Gieren, O. Szewczyk, A. Walker, L. Rizzi, F. Bresolin, R.-P. Kudritzki, K. Nalewajko, J. Storm, M. Dall'Ora & V. Ivanov - The Araucaria Project: the Distance to the Sculptor Dwarf Spheroidal Galaxy from Infrared Photometry of RR Lyrae Stars (AJ 135, 1993, 06.2008)

W. Gieren, G. Pietrzyński, K. Nalewajko, I. Soszyński, F. Bresolin, R.-P. Kudritzki, D. Minniti & A. Romanowsky - The Araucaria Project: An Accurate Distance to the Local Group Galaxy NGC 6822 from Near-Infrared Photometry of Cepheid Variables (ApJ 647, 1056, 20.08.2006)


Talks

Polarization Swings from Curved Trajectories of the Emitting Regions (presented at the conference High Energy Phenomena in Relativistic Outflows II, Buenos Aires, Argentina; 26.10.2009)

Energy Dissipation Mechanisms in Blazars (UNLV, Las Vegas, NV, USA; 16.10.2009)

Energy Dissipation Mechanisms in Blazars (JILA, Boulder, CO, USA; 09.10.2009)

at NCAC

Constraints on Extragalactic Magnetic Fields (Journal Club based on Science 328, 73; arXiv:1004.1093 and arXiv:1004.1329; 26.04.2010)

GRB 090510 (Journal Club based on arXiv:0908.1832; 16.11.2009)

Fermi Large Area Telescope Bright Gamma-ray Source List (Journal Club based on arXiv:0902.1340; 16.03.2009)

Twin X-ray jets in FR II radio galaxy 3C 353 (Journal Club based on ApJ 685, 839; 16.06.2008)

Correlation of the Highest-Energy Cosmic Rays with Nearby Extragalactic Objects (Journal Club based on Science 318, 938; 21.01.2008)


Posters

K. Nalewajko, M. C. Begelman, D. Giannios, M. Sikora & D. A. Uzdensky - Gamma-ray emission from the minijets (presented at the conference Fermi meets Jansky: AGN at radio and gamma-rays, Bonn, Germany, 21-23.06.2010)

K. Nalewajko & M. Sikora - Polarization of synchrotron emission from relativistic reconfinement shocks (presented at the conference Accrection and Ejection in AGN: a Global View, Como, Italy, 22-26.06.2009)

K. Nalewajko & M. Sikora - Reconfinement shocks in relativistic AGN jets (presented at the 4th Heidelberg International Symposium on High Energy Gamma-Ray Astronomy, 07-11.07.2008)


Hobby

Photography (in polish)