Polarization observations of 100 pulsars at 774 MHz by the Green Bank Telescope - Astrophysics > Solar and Stellar AstrophysicsReportar como inadecuado




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Abstract: We report on polarimetric observations of 100 pulsars centered on 774 MHz,made using the Green Bank Telescope, presenting their polarization profiles andpolarized flux densities and comparing them with previous observations whenpossible. For 67 pulsars, these are the first such measurements made.Polarization profiles of 8 millisecond pulsars in our sample show wide profilesand flat position-angle curves. Strong linear polarization, sometimesapproaching 100% of the total intensity, has been detected in all or a part ofthe average pulse profiles of some pulsars. In general, circular polarizationis very weak, although it is observed to be extremely strong in the leadingcomponent of PSR J1920+2650. Sense reversal of circular polarization as afunction of pulse phase has been detected from both core and other componentsof more than 20 pulsars. Any relationship between the spin-down luminosity andthe percentage of linear polarization is not evident in our data at thisfrequency.



Autor: J.L. Han NAOC, P.B. Demorest NRAO, W. van Straten SwinburneUni, A.G. Lyne JodrellBankObs

Fuente: https://arxiv.org/







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