Zobrazeno 1 - 10
of 557
pro vyhledávání: '"Krankowski A"'
Autor:
Flisek Paweł, Forte Biagio, Fallows Richard, Kotulak Kacper, Krankowski Andrzej, Bisi Mario, Mevius Maaijke, Froń Adam, Tiburzi Caterina, Soida Marian, Śmierciak Bartosz, Grzesiak Marcin, Matyjasiak Barbara, Pożoga Mariusz, Dąbrowski Bartosz, Mann Gottfried, Vocks Christian, Zucca Pietro, Błaszkiewicz Leszek
Publikováno v:
Journal of Space Weather and Space Climate, Vol 13, p 27 (2023)
Inhomogeneities within the ionospheric plasma density affect trans-ionospheric radio signals, causing radio wave scintillation in the amplitude and phase of the signals. The amount of scintillation induced by ionospheric irregularities typically decr
Externí odkaz:
https://doaj.org/article/db950444882741fc91ac6c8e6c5b4cf5
Autor:
Zhang, Peijin, Morosan, Diana E., Zucca, Pietro, Normo, Sanna, Dabrowski, Bartosz, Krankowski, Andrzej, Vocks, Christian
Context. Observations of solar type II radio bursts provide a unique opportunity to analyze the non-thermal electrons accelerated by coronal shocks and also to diagnose the plasma density distribution in the corona. However, there are very rare high-
Externí odkaz:
http://arxiv.org/abs/2403.19451
Autor:
Boyde Ben, Wood Alan, Dorrian Gareth, Fallows Richard A., Themens David, Mielich Jens, Elvidge Sean, Mevius Maaijke, Zucca Pietro, Dabrowski Bartosz, Krankowski Andrzej, Vocks Christian, Bisi Mario
Publikováno v:
Journal of Space Weather and Space Climate, Vol 12, p 34 (2022)
Observations made using the LOw-Frequency ARray (LOFAR) between 10:15 and 11:48 UT on the 15th of September 2018 over a bandwidth of approximately 25–65 MHz contain discrete pseudo-periodic features of ionospheric origin. These features occur withi
Externí odkaz:
https://doaj.org/article/cd3f3304ff1d4bada74c430d25097b70
Autor:
Basu, Rahul, Lewandowski, Wojciech, Kijak, Jarosław, Śmierciak, Bartosz, Soida, Marian, Błaszkiewicz, Leszek, Krankowski, Andrzej
We report the observations of single pulse emission from the pulsar B0809+74 at 150 MHz using the Polish LOFAR station, PL-611. The three major phenomena of subpulse drifting, nulling and mode changing associated with single pulse variations are prom
Externí odkaz:
http://arxiv.org/abs/2309.03820
Autor:
Fallows Richard A., Forte Biagio, Astin Ivan, Allbrook Tom, Arnold Alex, Wood Alan, Dorrian Gareth, Mevius Maaijke, Rothkaehl Hanna, Matyjasiak Barbara, Krankowski Andrzej, Anderson James M., Asgekar Ashish, Avruch I. Max, Bentum Mark, Bisi Mario M., Butcher Harvey R., Ciardi Benedetta, Dabrowski Bartosz, Damstra Sieds, de Gasperin Francesco, Duscha Sven, Eislöffel Jochen, Franzen Thomas M.O., Garrett Michael A., Grießmeier Jean-Matthias, Gunst André W., Hoeft Matthias, Hörandel Jörg R., Iacobelli Marco, Intema Huib T., Koopmans Leon V.E., Maat Peter, Mann Gottfried, Nelles Anna, Paas Harm, Pandey Vishambhar N., Reich Wolfgang, Rowlinson Antonia, Ruiter Mark, Schwarz Dominik J., Serylak Maciej, Shulevski Aleksander, Smirnov Oleg M., Soida Marian, Steinmetz Matthias, Thoudam Satyendra, Toribio M. Carmen, van Ardenne Arnold, van Bemmel Ilse M., van der Wiel Matthijs H.D., van Haarlem Michiel P., Vermeulen René C., Vocks Christian, Wijers Ralph A.M.J., Wucknitz Olaf, Zarka Philippe, Zucca Pietro
Publikováno v:
Journal of Space Weather and Space Climate, Vol 10, p 10 (2020)
This paper presents the results from one of the first observations of ionospheric scintillation taken using the Low-Frequency Array (LOFAR). The observation was of the strong natural radio source Cassiopeia A, taken overnight on 18–19 August 2013,
Externí odkaz:
https://doaj.org/article/8314cb34774d4b90bf8e549f3b572cca
Autor:
Zhang, Jinge, Reid, Hamish A. S., Krupar, Vratislav, Zucca, Pietro, Dabrowski, Bartosz, Krankowski, Andrzej
Large coronal loops around one solar radius in altitude are an important connection between the solar wind and the low solar corona. However, their plasma properties are ill-defined as standard X-ray and UV techniques are not suited to these low-dens
Externí odkaz:
http://arxiv.org/abs/2212.02161
Autor:
Dabrowski, Bartosz, Mikula, Katarzyna, Flisek, Pawel, Vocks, Christian, Zhang, PeiJin, Magdalenić, Jasmina, Warmuth, Alexander, Morosan, Diana E., Froń, Adam, Fallows, Richard A., Bisi, Mario M., Krankowski, Andrzej, Mann, Gottfried, Blaszkiewicz, Leszek, Carley, Eoin P., Gallagher, Peter T., Zucca, Pietro, Rudawy, Pawel, Hajduk, Marcin, Kotulak, Kacper, Sidorowicz, Tomasz
Publikováno v:
A&A 669, A52 (2023)
The Sun is the source of different types of radio bursts that are associated with solar flares, for example. Among the most frequently observed phenomena are type III solar bursts. Their radio images at low frequencies (below 100 MHz) are relatively
Externí odkaz:
http://arxiv.org/abs/2211.12756
Autor:
Zhang, PeiJin, Zucca, Pietro, Kozarev, Kamen, Carley, Eoin, Wang, ChuanBing, Franzen, Thomas, Dabrowski, Bartosz, Krankowski, Andrzej, Magdalenic, Jasmina, Vocks, Christian
Radio emission of the quiet Sun is considered to be due to thermal bremsstrahlung emission of the hot solar atmosphere. The properties of the quiet Sun in the microwave band have been well studied, and they can be well described by the spectrum of br
Externí odkaz:
http://arxiv.org/abs/2205.00065
Autor:
Morosan, Diana E., Räsänen, Juska E., Kumari, Anshu, Kilpua, Emilia K. J., Bisi, Mario M., Dabrowski, Bartosz, Krankowski, Andrzej, Magdalenić, Jasmina, Mann, Gottfried, Rothkaehl, Hanna, Vocks, Christian, Zucca, Pietro
The Sun is an active star that often produces numerous bursts of electromagnetic radiation at radio wavelengths. Low frequency radio bursts have recently been brought back to light with the advancement of novel radio interferometers. However, their p
Externí odkaz:
http://arxiv.org/abs/2203.14674
Autor:
Morabito, L. K., Jackson, N. J., Mooney, S., Sweijen, F., Badole, S., Kukreti, P., Venkattu, D., Groeneveld, C., Kappes, A., Bonnassieux, E., Drabent, A., Iacobelli, M., Croston, J. H., Best, P. N., Bondi, M., Callingham, J. R., Conway, J. E., Deller, A. T., Hardcastle, M. J., McKean, J. P., Miley, G. K., Moldon, J., Röttgering, H. J. A., Tasse, C., Shimwell, T. W., van Weeren, R. J., Anderson, J. M., Asgekar, A., Avruch, I. M., van Bemmel, I. M., Bentum, M. J., Bonafede, A., Brouw, W. N., Butcher, H. R., Ciardi, B., Corstanje, A., Coolen, A., Damstra, S., de Gasperin, F., Duscha, S., Eislöffel, J., Engels, D., Falcke, H., Garrett, M. A., Griessmeier, J., Gunst, A. W., van Haarlem, M. P., Hoeft, M., van der Horst, A. J., Jütte, E., Kadler, M., Koopmans, L. V. E., Krankowski, A., Mann, G., Nelles, A., Oonk, J. B. R., Orru, E., Paas, H., Pandey, V. N., Pizzo, R. F., Pandey-Pommier, M., Reich, W., Rothkaehl, H., Ruiter, M., Schwarz, D. J., Shulevski, A., Soida, M., Tagger, M., Vocks, C., Wijers, R. A. M. J., Wijnholds, S. J., Wucknitz, O., Zarka, P., Zucca, P.
Publikováno v:
A&A 658, A1 (2022)
[abridged] The International LOFAR Telescope is an interferometer with stations spread across Europe. With baselines of up to ~2,000 km, LOFAR has the unique capability of achieving sub-arcsecond resolution at frequencies below 200 MHz, although this
Externí odkaz:
http://arxiv.org/abs/2108.07283