Detection of new emission components in PSR B0329+-54

Details Detection of new emission components in PSR B0329+-54 Detection of new emission components in PSR B0329+-54

1999-11-03

arxiv.org/abs/astro-ph/9911029v1

ASP Conf. Series, IAU Coll. 177 on Pulsar Astronomy-2000 and Beyond, ed. M. Kramer, N. Wex, R. Wielebinski

Astronomy and Astrophysics

Astrophysics

2 pages, 1 Postscript figures, uses newpasp.sty

Scientific paper

To study the structure of emission beam, we have analysed the single pulse data of PSR B0329+-54 at 325 and 606 MHz. In order to unambiguously detect the weak emission components, we have developed a new data analysis technique, which we term ``window-thresholding''. By applying this technique to the data, we have detected three new emission components, and also confirmed the presence of a component which was proposed earlier. Hence our analysis indicates that PSR B0329+-54 has nine components, which is among the highest of all the known pulsars. The symmetric distribution of pulse components about the pulse centre, indicates that the emission beam is conal.

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