Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Machalski, J."'
Publikováno v:
MNRAS 501,853 (2021)
We report the discovery of a double-double radio source (DDRS) J0028+0035. We observed it with LOFAR, GMRT, and the VLA. By combining our observational data with those from the literature, we gathered an appreciable set of radio flux density measurem
Externí odkaz:
http://arxiv.org/abs/2011.09293
Autor:
O'Sullivan, S. P., Machalski, J., Van Eck, C. L., Heald, G., Brueggen, M., Fynbo, J. P. U., Heintz, K. E., Lara-Lopez, M. A., Vacca, V., Hardcastle, M. J., Shimwell, T. W., Tasse, C., Vazza, F., Andernach, H., Birkinshaw, M., Haverkorn, M., Horellou, C., Williams, W. L., Harwood, J. J., Brunetti, G., Anderson, J. M., Mao, S. A., Nikiel-Wroczynski, B., Takahashi, K., Carretti, E., Vernstrom, T., van Weeren, R. J., Orru, E., Morabito, L. K., Callingham, J. R.
Cosmological simulations predict that an intergalactic magnetic field (IGMF) pervades the large scale structure (LSS) of the Universe. Measuring the IGMF is important to determine its origin (i.e. primordial or otherwise). Using data from the LOFAR T
Externí odkaz:
http://arxiv.org/abs/1811.07934
Autor:
Bhatta, G., Stawarz, L., Markowitz, A., Balasubramaniam, K., Zola, S., Zdziarski, A. A., Jamrozy, M., Ostrowski, M., Kuzmicz, A., Ogloza, W., Drozdz, M., Siwak, M., Koziel-Wierzbowska, D., Debski, B., Kundera, T., Stachowski, G., Machalski, J., Paliya, V. S., Caton, D. B.
Here we explore the disk-jet connection in the broad-line radio quasar 4C+74.26, utilizing the results of the multiwavelength monitoring of the source. The target is unique in that its radiative output at radio wavelengths is dominated by a moderatel
Externí odkaz:
http://arxiv.org/abs/1805.06957
Publikováno v:
The Astrophysical Journal, 850:7 (8pp), 2017 November 20
In this paper, we test the possibility that the structure of the largest radio galaxy J1420-0545 may have been formed by restarted rather than primary jet activity. This hypothesis was motivated by the unusual morphological properties of the source c
Externí odkaz:
http://arxiv.org/abs/1711.05200
Publikováno v:
MNRAS 463, 338 (2016)
We report the outcome of multifrequency radio observations of a double-double radio source J1706+4340 carried out with the Very Large Array and Giant Metrewave Radio Telescope. After supplementing our own data with those available in the literature,
Externí odkaz:
http://arxiv.org/abs/1608.07437
Publikováno v:
A&A 595, A46 (2016)
Radio galaxies classified as X-shaped/winged, are characterised by two pairs of extended and misaligned lobes, which suggest a rapid realignment of the jet axis, for which a potential cause is still under debate. Here we analyse the complex radio str
Externí odkaz:
http://arxiv.org/abs/1608.07057
Autor:
Konar, C., Jamrozy, M., Hardcastle, M. J., Croston, J. H., Nandi, S., Saikia, D. J., Machalski, J.
Relativistic and magnetised plasma ejected by radio loud AGNs through jets form the diffuse lobes of radio galaxies. The radiating particles (electron/electron-positron) in lobes emit in radio via the synchrotron process and X-ray via inverse-Compton
Externí odkaz:
http://arxiv.org/abs/1309.1386
In this paper we consider the possibility that the structure of the largest radio galaxy J1420-0545 is formed by a restarted rather than a primary jet activity. This hypothesis is motivated by the unusual morphological properties of the source, sugge
Externí odkaz:
http://arxiv.org/abs/1107.5449
Publikováno v:
Acta Astronomica Vol. 59 No. 4 2009
hree limited samples of high-redshift radio sources of FRII-type are used to constrain the dynamical model for the jets' propagation through the two-media environment: the X-ray emitting halo with the power-law density profile surrounding the parent
Externí odkaz:
http://arxiv.org/abs/1002.0476
Using the new low-frequency and high-frequency radio images of this galaxy, we determined the shape of the spectrum along its lobes and performed the classical spectral-ageing analysis. On the other hand, we applied the analytical model of the jet's
Externí odkaz:
http://arxiv.org/abs/0912.1484