Simultaneous single-pulse observations of radio pulsars II. Orthogonal polarization modes in PSR B1133+16

Karastergiou, A. ; Kramer, M. ; Johnston, S. ; Lyne, A. G. ; Bhat, N. D. R. ; Gupta, Y. (2002) Simultaneous single-pulse observations of radio pulsars II. Orthogonal polarization modes in PSR B1133+16 Astronomy & Astrophysics, 391 (1). pp. 247-251. ISSN 0004-6361

[img]
Preview
PDF - Publisher Version
141kB

Official URL: http://www.aanda.org/index.php?option=com_article&...

Related URL: http://dx.doi.org/10.1051/0004-6361:20020793

Abstract

In this letter, we present a study of orthogonal polarization modes in the radio emission of PSR B1133+16, conducted within the frame of simultaneous, multi-frequency, single-pulse observations. Simultaneously observing at two frequencies (1.41 GHz and 4.85 GHz) provides the means to study the bandwidth of polarization features such as the polarization position angle. We find two main results. First, that there is a high degree of correlation between the polarization modes at the two frequencies. Secondly, the modes occur more equally and the fractional linear polarization decreases towards higher frequencies. We discuss this frequency evolution and propose propagation effects in the pulsar magnetosphere as its origin.

Item Type:Article
Source:Copyright of this article belongs to EDP Sciences.
Keywords:Pulsars: Individual: PSR B1133+16
ID Code:92164
Deposited On:26 May 2012 14:01
Last Modified:19 May 2016 05:42

Repository Staff Only: item control page