Angular Broadening of Nearby Pulsars

Details Angular Broadening of Nearby Pulsars Angular Broadening of Nearby Pulsars

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...501l.101b&link_type=abstract

Astrophysical Journal Letters v.501, p.L101

Astronomy and Astrophysics

Astronomy

16

Turbulence, Scattering, Ism: Structure, Stars: Pulsars: General, Techniques: Interferometric

Scientific paper

We conducted a very long baseline interferometric observation of five nearby pulsars and did not resolve their scattering disks. Using the resulting upper limits on the angular diameters of their scattering disks and the published values of their broadening times, we constrain the possible distributions of scattering material. We find that this material is neither uniformly distributed nor concentrated at the surface of the Local Bubble, but rather it lies near the pulsars. We then use published values of the proper-motion velocities Vpm to constrain the velocity of the scattering material Vscr. In one case, this material must be moving in the same general direction as the pulsar, with the increasing angle between Vpm and Vscr leading to improbably large values of |Vscr|. We argue that these results are difficult to explain unless the scattering material is associated with the pulsar.

Affiliated with

Also associated with

No associations

Rating

Angular Broadening of Nearby Pulsars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Angular Broadening of Nearby Pulsars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Angular Broadening of Nearby Pulsars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1343078