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Wide-band Simultaneous Observations of Pulsars: Disentangling Dispersion Measure and Profile Variations

Abstract:

Dispersion in the interstellar medium is a well known phenomenon that follows a simple relationship, which has been used to predict the time delay of dispersed radio pulses since the late 1960s. We performed wide-band simultaneous observations of four pulsars with LOFAR (at 40-190 MHz), the 76-m Lovell Telescope (at 1400 MHz) and the Effelsberg 100-m Telescope (at 8000 MHz) to test the accuracy of the dispersion law over a broad frequency range. In this paper we present the results of these o...

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Publication status:
Published

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Publisher copy:
10.1051/0004-6361/201218970

Authors


Hassall, TE More by this author
Stappers, BW More by this author
Hessels, JWT More by this author
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Journal:
A
Volume:
5
Pages:
3
Publication date:
2012-07-05
DOI:
EISSN:
1432-0746
ISSN:
0004-6361
URN:
uuid:0971f5b3-c5eb-48d2-9616-b0de3d41a6dd
Source identifiers:
325255
Local pid:
pubs:325255
Language:
English
Keywords:

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