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Measuring a Cherenkov ring in the radio emission from air showers at 110-190 MHz with LOFAR

Catalog Data

Author:
Röttgering, H.  Search this
Kuper, G.  Search this
Deller, A.  Search this
Vocks, C.  Search this
Frieswijk, W.  Search this
Tagger, M.  Search this
Steinmetz, M.  Search this
Breitling, F.  Search this
Karastergiou, A.  Search this
Tasse, C.  Search this
Best, P.  Search this
Scaife, A. M. M.  Search this
Ciardi, B.  Search this
Reich, W.  Search this
Schwarz, D.  Search this
Bernardi, G.  Search this
Polatidis, A. G.  Search this
Kramer, M.  Search this
Wucknitz, O.  Search this
Pizzo, R.  Search this
Maat, P.  Search this
Bregman, J.  Search this
Bell, M. E.  Search this
Paas, H.  Search this
Juette, E.  Search this
Anderson, J.  Search this
Stewart, A.  Search this
Brüggen, M.  Search this
Eislöffel, J.  Search this
Asgekar, A.  Search this
Butcher, H. R.  Search this
Duscha, S.  Search this
Falcke, H.  Search this
Garrett, M. A.  Search this
Gunst, A. W.  Search this
Heald, G.  Search this
Iacobelli, M.  Search this
Kuniyoshi, M.  Search this
Mann, G.  Search this
Nelles, A.  Search this
Pandey-Pommier, M.  Search this
Pietka, G.  Search this
Smirnov, O.  Search this
Thoudam, S.  Search this
Yatawatta, S.  Search this
Fallows, R. A.  Search this
Hassall, T. E.  Search this
Horneffer, A.  Search this
Mevius, M.  Search this
Stappers, B. W.  Search this
Tang, Y.  Search this
ter Veen, S.  Search this
Wijnholds, S. J.  Search this
Zarka, P.  Search this
Buitink, S.  Search this
Enriquez, J. E.  Search this
Hörandel, J. R.  Search this
Norden, M. J.  Search this
Schellart, P.  Search this
Scholten, O.  Search this
Broderick, J.  Search this
de Vries, K. D.  Search this
van den Akker, M.  Search this
van Weeren, R. J.  Search this
Vermeulen, R.  Search this
Corstanje, A.  Search this
Kondratiev, V. I.  Search this
Bentum, M. J.  Search this
Brouw, W. N.  Search this
Object Type:
Smithsonian staff publication
Electronic document
Year:
2015
Abstract:
Measuring radio emission from air showers offers a novel way to determine properties of the primary cosmic rays such as their mass and energy. Theory predicts that relativistic time compression effects lead to a ring of amplified emission which starts to dominate the emission pattern for frequencies above ~ 100 MHz. In this article we present the first detailed measurements of this structure. Ring structures in the radio emission of air showers are measured with the LOFAR radio telescope in the frequency range of 110-190 MHz. These data are well described by CoREAS simulations. They clearly confirm the importance of including the index of refraction of air as a function of height. Furthermore, the presence of the Cherenkov ring offers the possibility for a geometrical measurement of the depth of shower maximum, which in turn depends on the mass of the primary particle.
Doi:
10.1016/j.astropartphys.2014.11.006
Citation:
Nelles, A., Schellart, P., Buitink, S., Corstanje, A., de Vries, K. D., Enriquez, J. E., Falcke, H., Frieswijk, W., Hörandel, J. R., Scholten, O., ter Veen, S., Thoudam, S., van den Akker, M., Anderson, J., Asgekar, A., Bell, M. E., Bentum, M. J., Bernardi, G., Best, P., Bregman, J., Breitling, F., Broderick, J., Brouw, W. N., Brüggen, M., Butcher, H. R., et al. 2015. Measuring a Cherenkov ring in the radio emission from air showers at 110-190 MHz with LOFAR. <i>Astroparticle Physics<i>, 65: 11-21. doi:10.1016/j.astropartphys.2014.11.006
Topic:
Astronomy  Search this
Data source:
Smithsonian Libraries
EDAN-URL:
edanmdm:SILSRO_136432