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Low-frequency pulse profile variation in PSR B2217+47: evidence for echoes from the interstellar medium

Abstract:

We have observed a complex and continuous change in the integrated pulse profile of PSR B2217+47, manifested as additional components trailing the main peak. These transient components are detected over 6 yr at 150 MHz using the LOw Frequency ARray (LOFAR), but they are not seen in contemporaneous Lovell observations at 1.5 GHz. We argue that propagation effects in the ionized interstellar medium (IISM) are the most likely cause. The putative structures in the IISM causing the profile variati...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1093/MNRAS/STY368

Authors


Michilli, D More by this author
Hessels, JWT More by this author
Donner, JY More by this author
Grießmeier, JM More by this author
Serylak, M More by this author
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Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
476
Issue:
2
Pages:
2704-2716
Publication date:
2018-02-13
Acceptance date:
2018-02-08
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Pubs id:
pubs:919335
URN:
uri:6e48512e-7b11-46a3-939b-94d44d949517
UUID:
uuid:6e48512e-7b11-46a3-939b-94d44d949517
Local pid:
pubs:919335

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