Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21110204s&link_type=abstract
American Astronomical Society, AAS Meeting #211, #102.04; Bulletin of the American Astronomical Society, Vol. 39, p.918
Astronomy and Astrophysics
Astronomy
Scientific paper
Turbulence in the ISM causes refraction that leads to multipath interference and the time and frequency modulation observed in the dynamic spectrum of radio pulsars. As the distance over which this interference takes place can be considerable (on the order of 1 AU), the resolving power of this phenomenon is much greater than that of conventional interferometers, and can potentially be used to image the emission region of a pulsar.
We present observations of two pulsars, B0834+06 and B1133+16, observed at the GBT at 327 MHz using a baseband recorder. For both pulsars, we study correlations in the dynamic spectrum between individual pulse components. We attribute the significant decorrelation between pulse components to a separation of emission regions. Properties of the parabolic arcs in the secondary spectrum are used to constrain the entire size of the pulse emission region and confirm the interpretation of the dynamic spectrum. We compare these results to previous attempts to resolve pulsar magnetospheres, and interpret the results in the context of standard radio emission models.
Brisken Walter
Cordes Jim
Macquart J.
Shannon Ryan
No associations
LandOfFree
Resolving Pulsar Magnetospheres Using Interstellar Scintillometry 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 Resolving Pulsar Magnetospheres Using Interstellar Scintillometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resolving Pulsar Magnetospheres Using Interstellar Scintillometry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1480559