Angular Broadening of Nearby Pulsars | Zendy

M. C. Britton | Zendy; C. R. Gwinn | Zendy; M. J. Ojeda | Zendy

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Angular Broadening of Nearby Pulsars

Author(s) -

M. C. Britton,

C. R. Gwinn,

M. J. Ojeda

Publication year - 1998

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311427

Subject(s) - scattering , pulsar , physics , bubble , interferometry , astrophysics , computational physics , optics , mechanics

We conducted a very long baseline interferometric observation of 5 nearbypulsars and did not resolve the scattering disks of any of these sources. Usingour upper limits on the angular diameters of these scattering disks andpublished values of the broadening times and proper motion velocities, weconstrain the possible distributions of scattering material. The materialresponsible for scattering these sources is neither uniformly distributed norconcentrated at the surface of the Local Bubble. We argue that these pulsarsthemselves influence their environments to produce this scattering material.

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