Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Krzysztof Nalewajko"'
Autor:
Ewa Ledwoń, Paula Zemła-Szten, Thekla von dem Berge, Krzysztof Nalewajko, Stefano Passanisi, Claudia Piona, Tiago Jeronimo dos Santos, Jannet Svensson, Anna Korsgaard Berg, Agata Chobot
Publikováno v:
Children, Vol 11, Iss 6, p 740 (2024)
The study aimed to estimate the prevalence of skin problems in children and adolescents with type 1 diabetes (T1D) using insulin pumps (IPs) and/or continuous glucose monitoring (CGM) in our center and analyze their association with various factors.
Externí odkaz:
https://doaj.org/article/01ad90e3e0ba4166aaf2b9c719cead37
Autor:
Krzysztof Nalewajko
Publikováno v:
Galaxies, Vol 5, Iss 4, p 100 (2017)
Recent detection of suborbital gamma-ray variability of Flat Spectrum Radio Quasar (FSRQ) 3C 279 by Fermi Large Area Telescope (LAT) is in severe conflict with established models of blazar emission. This paper presents the results of suborbital analy
Externí odkaz:
https://doaj.org/article/af01694ef09e4363bb7c907b4439d8eb
Autor:
Krzysztof Nalewajko
Publikováno v:
Galaxies, Vol 5, Iss 4, p 64 (2017)
This paper presents a simple model of polarisation rotation in optically thin relativistic jets of blazars. The model is based on the development of helical (kink) mode of current-driven instability. A possible explanation is suggested for the observ
Externí odkaz:
https://doaj.org/article/0533b07bc74249718c5c1a020e8b74cc
Autor:
Krzysztof Nalewajko
Publikováno v:
Galaxies, Vol 4, Iss 3, p 28 (2016)
Rapid and luminous flares of non-thermal radiation observed in blazars require an efficient mechanism of energy dissipation and particle acceleration in relativistic active galactic nuclei (AGN) jets. Particle acceleration in relativistic magnetic re
Externí odkaz:
https://doaj.org/article/ebf4d13a4ebf45adb113c6e06f93094f
Autor:
Alex G Markowitz, Krzysztof Nalewajko, Gopal Bhatta, Gulab C Dewangan, Sunil Chandra, Daniela Dorner, Bernd Schleicher, Urszula Pajdosz-Śmierciak, Łukasz Stawarz, Staszek Zola, Michał Ostrowski, Daniele Carosati, Saikruba Krishnan, Rumen Bachev, Erika Benítez, Kosmas Gazeas, David Hiriart, Shao-Ming Hu, Valeri Larionov, Alessandro Marchini, Katsura Matsumoto, A A Nikiforova, Tapio Pursimo, Claudia M Raiteri, Daniel E Reichart, Diego Rodriguez, Evgeni Semkov, Anton Strigachev, Yuki Sugiura, Massimo Villata, James R Webb, Axel Arbet-Engels, Dominik Baack, Matteo Balbo, Adrian Biland, Thomas Bretz, Jens Buss, Laura Eisenberger, Dominik Elsaesser, Dorothee Hildebrand, Roman Iotov, Adelina Kalenski, Karl Mannheim, Alison Mitchell, Dominik Neise, Maximilian Noethe, Aleksander Paravac, Wolfgang Rhode, Vitalii Sliusar, Roland Walter
The study of short-term variability properties in AGN jets has the potential to shed light on their particle acceleration and emission mechanisms. We report results from a four-day coordinated multi-wavelength campaign on the highly-peaked blazar (HB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::276b4fb77984a9025dafc14f4ea505ee
http://arxiv.org/abs/2206.03874
http://arxiv.org/abs/2206.03874
We propose a simple analytical jet model of magnetic jets, in which radially-averaged profiles of main physical quantities are obtained based on conservation laws and some results of published GRMHD jet simulations. We take into account conversion of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54e59a56d91a8651dad54e1ff371cc45
http://arxiv.org/abs/2204.11637
http://arxiv.org/abs/2204.11637
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 497:1365-1381
We present the results of 2D particle-in-cell (PIC) simulations of relativistic magnetic reconnection (RMR) in electron-positron plasma, including the dynamical influence of the synchrotron radiation process, and integrating the observable emission s
Autor:
José Ortuño-Macías, Krzysztof Nalewajko, Dmitri A. Uzdensky, Mitchell C. Begelman, Gregory R. Werner, Alexander Y. Chen, Bhupendra Mishra
Relativistic magnetized jets, such as those from AGN, GRBs and XRBs, are susceptible to current- and pressure-driven MHD instabilities that can lead to particle acceleration and non-thermal radiation. Here we investigate the development of these inst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4e50a90d0bbfff5d9cd93f1ce07f011
Autor:
Arti Goyal, Marian Soida, Łukasz Stawarz, Paul J. Wiita, Kari Nilsson, Svetlana Jorstad, Alan P. Marscher, Margo F. Aller, Hugh D. Aller, Anne Lähteenmäki, Talvikki Hovatta, Staszek Zoła, Krzysztof Nalewajko, Merja Tornikoski, Joni Tammi, Mark Hodges, Sebastian Kiehlmann, Anthony C. S. Readhead, Walter Max-Moerbeck, Elina Lindfors, Vandad Fallah Ramazani, D. E. Reichart, D. B. Caton, Janeth Valverde, Deirdre Horan, Roopesh Ojha, Pfesesani van Zyl
We present the results of variability power spectral density (PSD) analysis using multiwavelength radio to GeV\,$\gamma$-ray light curves covering decades/years to days/minutes timescales for the blazars 3C 279 and PKS 1510-089. The PSDs are modeled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd2dc5b709dd2eb5d990889a315836dd
https://ruj.uj.edu.pl/xmlui/handle/item/289668
https://ruj.uj.edu.pl/xmlui/handle/item/289668
Autor:
Bhupendra Mishra, P. Chris Fragile, Jessica Anderson, Aidan Blankenship, Hui Li, Krzysztof Nalewajko
Publikováno v:
The Astrophysical Journal. 939:31
We present a set of three-dimensional, global, general relativistic radiation magnetohydrodynamic simulations of thin, radiation-pressure-dominated accretion disks surrounding a non-rotating, stellar-mass black hole. The simulations are initialized u