Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Kesteven, P J"'
Autor:
Carretti, E., Haverkorn, M., Staveley-Smith, L., Bernardi, G., Gaensler, B. M., Kesteven, M. J., Poppi, S., Brown, S., Crocker, R. M., Purcell, C., Schnitzler, D. H. F. M., Sun, X.
We present the S-Band Polarization All Sky Survey (S-PASS), a survey of polarized radio emission over the southern sky at Dec~$< -1^\circ$ taken with the Parkes radio telescope at 2.3~GHz. The main aim was to observe at a frequency high enough to avo
Externí odkaz:
http://arxiv.org/abs/1903.09420
Autor:
Thomson, Alec J. M., McClure-Griffiths, N. M., Federrath, Christoph, Dickey, John M., Carretti, Ettore, Gaensler, B. M., Haverkorn, Marijke, Kesteven, M. J., Staveley-Smith, Lister
We identify a counterpart to a Galactic supershell in diffuse radio polarisation, and use this to determine the magnetic fields associated with this object. GSH 006$-$15$+$7 has perturbed the polarised emission at 2.3$\,$GHz, as observed in the S-ban
Externí odkaz:
http://arxiv.org/abs/1807.04759
Autor:
Robitaille, J. -F., Scaife, A. M. M., Carretti, E., Haverkorn, M., Crocker, R. M., Kesteven, M. J., Poppi, S., Staveley-Smith, L.
Publikováno v:
A&A 617, A101 (2018)
We report the detection of a new Galactic bubble at the interface between the halo and the Galactic disc. We suggest that the nearby Lupus complex and parts of the Ophiuchus complex constitute the denser parts of the structure. This young bubble, < 3
Externí odkaz:
http://arxiv.org/abs/1807.04054
Autor:
Robitaille, J. -F., Scaife, A. M. M., Carretti, E., Gaensler, B. M., McEwen, J. D., Leistedt, B., Haverkorn, M., Bernardi, G., Kesteven, M. J., Poppi, S., Staveley-Smith, L.
We compare two rotationally invariant decomposition techniques on linear polarisation data: the spin-2 spherical harmonic decomposition in two opposite parities, the $E$- and $B$-mode, and the multiscale analysis of the gradient of linear polarisatio
Externí odkaz:
http://arxiv.org/abs/1703.04469
Autor:
Purcell, C. R., Gaensler, B. M., Sun, X. H., Carretti, E., Bernardi, G., Haverkorn, M., Kesteven, M. J., Poppi, S., Schnitzeler, D. H. F. M., Staveley-Smith, L.
The Gum Nebula is 36 degree wide shell-like emission nebula at a distance of only 450 pc. It has been hypothesised to be an old supernova remnant, fossil HII region, wind-blown bubble, or combination of multiple objects. Here we investigate the magne
Externí odkaz:
http://arxiv.org/abs/1502.06296
Autor:
Iacobelli, M., Burkhart, B., Haverkorn, M., Lazarian, A., Carretti, E., Staveley-Smith, L., Gaensler, B. M., Bernardi, G., Kesteven, M. J., Poppi, S.
Radio synchrotron polarization maps of the Galaxy can be used to infer the properties of interstellar turbulence in the diffuse warm ionized medium (WIM). In this paper, we investigate the spatial gradient of linearly polarized synchrotron emission (
Externí odkaz:
http://arxiv.org/abs/1404.6077
Autor:
Norris, Ray P., Kesteven, M. J.
The Parkes-Tidbinbilla took advantage of a real-time radio-link connecting the Parkes and Tidbinbilla antennas to form the world's longest real-time interferometer. Built on a minuscule budget, it was an extraordinarily successful instrument, generat
Externí odkaz:
http://arxiv.org/abs/1301.3534
Autor:
Carretti, E., Crocker, R. M., Staveley-Smith, L., Haverkorn, M., Purcell, C., Gaensler, B. M., Bernardi, G., Kesteven, M. J., Poppi, S.
Publikováno v:
Nature, 493, p66 (2013)
The nucleus of the Milky Way is known to harbour regions of intense star formation activity as well as a super-massive black hole. Recent Fermi space telescope observations have revealed regions of \gamma-ray emission reaching far above and below the
Externí odkaz:
http://arxiv.org/abs/1301.0512
Autor:
Manchester, R. N., Hobbs, G., Bailes, M., Coles, W. A., van Straten, W., Keith, M. J., Shannon, R. M., Bhat, N. D. R., Brown, A., Burke-Spolaor, S. G., Champion, D. J., Chaudhary, A., Edwards, R. T., Hampson, G., Hotan, A. W., Jameson, A., Jenet, F. A., Kesteven, M. J., Khoo, J., Kocz, J., Maciesiak, K., Oslowski, S., Ravi, V., Reynolds, J. R., Sarkissian, J. M., Verbiest, J. P. W., Wen, Z. L., Wilson, W. E., Yardley, D., Yan, W. M., You, X. P.
A "pulsar timing array" (PTA), in which observations of a large sample of pulsars spread across the celestial sphere are combined, allows investigation of "global" phenomena such as a background of gravitational waves or instabilities in atomic times
Externí odkaz:
http://arxiv.org/abs/1210.6130
Autor:
Norris, Ray P., Kesteven, M. J.
The Parkes-Tidbinbilla took advantage of a real-time radio-link connecting the Parkes and Tidbinbilla antennas to form the world's longest real-time interferometer, perhaps the earliest example of eVLBI. Built on a minuscule budget, it was an extraor
Externí odkaz:
http://arxiv.org/abs/1210.0988