Abstract
We performed polarization observations of giant radio pulses from the millisecond pulsar B1937+21. The observations were carried out in July 2002 with the 64-m Kalyazin radio telescope at a frequency of 600 MHz in two polarization channels with left-and right-hand circular polarizations (RCP and LCP). We used the S2 data acquisition system with a time resolution of 125 ns. The duration of an observing session was 20 min. We detected twelve giant radio pulses with peak flux densities higher than 1000 Jy; five and seven of these pulses appeared in the RCP and LCP channels, respectively. We found no event that exceeded the established detection threshold simultaneously in the two polarization channels. Thus, we may conclude that the detected giant pulses have a high degree of circular polarization, with the frequency of occurrence of RCP and LCP pulses being the same.
Similar content being viewed by others
References
E. Asseo, Mon. Not. R. Astron. Soc. 264, 940 (1993).
I. Cognard, J. A. Shrauner, J. H. Taylor, and S. E. Thorsett, Astrophys. J. 457, L81 (1996).
W. H. Cannon, D. Baer, G. Feil, et al., Vistas Astron. 41, 297 (1997).
T. H. Hankins, Astrophys. J. 169, 487 (1971).
T. H. Hankins and B. J. Rickett, Methods in Computational Physics: Advances in Research and Applications, Vol. 14: Radio Astronomy, Ed. by B. Alder, S. Fernbach, and M. Rotenberg (Academic, New York, 1975), p. 55.
T. H. Hankins, J. S. Kern, J. C. Weatherall, and J. A. Eilek, Nature 422, 141 (2003).
F. A. Jenet and S. B. Anderson, Publ. Astron. Soc. Pac. 110, 1467 (1998).
A. Kinkhabwala and S. E. Thorsett, Astrophys. J. 535, 365 (2000).
M. V. Popov and B. Stappers, Astron. Zh. 80, 635 (2003) [Astron. Rep. 47, 660 (2003)].
V. A. Soglasnov, M. V. Popov, N. Bartel, et al., Astrophyys. J. (2003, in press).
R. D. Wietfeldt, W. Van Straten, D. Del Rizzo, et al., Astron. Astrophys., Suppl. Ser. 131, 549 (1998).
Author information
Authors and Affiliations
Additional information
__________
Translated from Pis’ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Zhurnal, Vol. 30, No. 2, 2004, pp. 115–120.
Original Russian Text Copyright © 2004 by Popov, Soglasnov, Kondrat’ev, Kostyuk.
Rights and permissions
About this article
Cite this article
Popov, M.V., Soglasnov, V.A., Kondrat’ev, V.I. et al. Polarization observations of giant radio pulses from the millisecond pulsar B1937+21 at a frequency of 600 MHz. Astron. Lett. 30, 95–99 (2004). https://doi.org/10.1134/1.1646694
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1646694