Wide profile drifting pulsars : an elegant way to probe pulsar magnetospheres - Astrophysics > Astrophysics of GalaxiesReportar como inadecuado




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Abstract: We present the results from a study of wide profile pulsars using highsensitivity multifrequency observations with the GMRT. Since the line of sightsamples a large region of the polar cap in case of the wide profile pulsars,presence of simultaneous multiple drift regions is quite probable as seen inPSR B0826-34 and PSR B0818-41. We solve the aliasing problem of PSR B0818-41using the observed phase relationship of the drift regions, and determine itspattern rotation period P4 to be ~ 10s, which makes it the fastest knowncarousel. We find that, for all the pulsars showing drifting in multiple ringsof emission, the drift pattern from the rings are phase locked. This canconstraint the theoretical models of pulsar emission as it favors a panmagnetospeheric radiation mechanism.



Autor: Bhaswati Bhattacharyya NCRA-TIFR, IUCAA, Yashwant Gupta NCRA-TIFR Pune, India, Janusz Gil University of Zielona Gora, Poland

Fuente: https://arxiv.org/







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