The Effect of aberration on polarization position angle of pulsars

نویسندگان

  • D. Mitra
  • J. H. Seiradakis
چکیده

The linear polarization position angle (PPA) of pulsar emission shows a wide variety of structures, which deviates from the classical rotating vector model. In this study we investigate the effect on the PPA due to emission arising from a range of heights. We demonstrate that by appropriately choosing the emission height we can reconstruct the PPA sweep across the integrated pulse profiles.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Single Pulse Polarimetric Study of Partial Cones in Pulsars

‘Partial cones’ are classified as pulsars where the steepest gradient (SG) of the polarization-position angle (PPA) traverse lies towards one edge of the total intensity pulse profile. In this paper we present single pulse polarimetric observations of seven pulsars classified as having partial cone profiles observed with the Gaint Meterwave Radio Telescope (GMRT) at 325 MHz and the Arecibo Obse...

متن کامل

Comparing Geometrical and Delay Radio Emission Heights in Pulsars

We use a set of carefully selected published average multifrequency polarimetric observations for six bright cone dominated pulsars and devise a method to combine the multifrequency polarization position angle (PPA) sweep traverses. We demonstrate that the PPA traverse is in excellent agreement with the rotating vector model over this broad frequency range confirming that radio emission emanate...

متن کامل

Depolarization and position angle jumps due to relative longitude shift of pulsar beams

Pulsar radio emission is generally found to be linearly polarized over all longitudes of profiles, some times as high as up to 100%. The position angle sweep is in an ‘S’ shape, which can be well understood within the rotating vector model (Radhakrishnan & Cooke 1969). However, depolarization and position angle jumping are often found in the integrated profiles of some pulsars. In this paper, w...

متن کامل

Circular Polarization in Pulsar Integrated Profiles: Updates

We update the systematic studies of circular polarization in integrated pulse profiles by Han et al (1998). Data of circular polarization profiles are compiled. Sense reversals can occur in core or cone components, or near the intersection between components. The correlation between the sense of circular polarization and the sense of position angle variation for conal-double pulsars is confirme...

متن کامل

Rotational sweepback of magnetic field lines in geometrical models of pulsar radio emission

We study the rotational distortions of the vacuum dipole magnetic field in the context of geometrical models of the radio emission from pulsars. We find that at low altitudes the rotation deflects the local direction of the magnetic field by at most an angle of the order of r n, where rn = r/Rlc, r is the radial distance of the radio emission and Rlc is the light cylinder radius. To the lowest ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004