Pulsar Polarization, Emission, and Beaming
نویسندگان
چکیده
منابع مشابه
Polarization Patterns in Pulsar Radio Emission
A variety of intriguing polarization patterns are created when polarization observations of the single pulses from radio pulsars are displayed in a twodimensional projection of the Poincaré sphere. In many pulsars, the projections produce two clusters of data points that reside at antipodal points on the sphere. The clusters are formed by fluctuations in polarization amplitude that are parallel...
متن کاملAre There Real Orthogonal Polarization Modes in Pulsar Radio Emission?
The Orthogonal Polarization Modes (OPM) have been reported observationally (see e.g. [1]) and accepted widely by pulsar researchers (see e.g. [2,3]). However, no acceptable theory can show the origin of the OPM, which becomes a mystery in pulsar research field. Here a possible way to solve this mystery is presented. We ask a question: Does there exist any real so-called OPM in pulsar radiation?...
متن کاملThe polarization and beaming effect for GRBs
Both observations and theoretical models suggest that the emissions in gamma-ray bursts (GRBs) and the afterglows are beamed. We argue that the recent polarization measured in the afterglows gives further evidence of beaming in GRBs. In this approach, we adopted the polarization-magnitude relation of BL Lacertae objects to 4 GRBs with available polarization measurements and found that the data ...
متن کاملPulsar Emission Spectrum
Here we calculate pulsar emission, apparently from first principles, i.e., without any arbitrary assumptions. Our method applies to weak pulsars. A pulsar is called weak if pair production near the light cylinder is negligible compared to Goldreich-Julian density [1] per rotation. The weak pulsar approximation must be accurate for some, and perhaps meaningful for most, Fermi [2] pulsars. We tre...
متن کاملPolarization and beaming effect for BL Lacertae objects
We derive a relation between the observed polarization and beaming factor (Doppler factor) and compare this relation with the observed data for BL Lac objects. Our results indicate that the high optical polarization is correlated to the beaming effect and the difference in polarizations between Xray selected (XBLs) and radio selected (RBLs) BL Lac objects is due to the difference in their beami...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1996
ISSN: 0252-9211
DOI: 10.1017/s0252921100041609