Comparing Gamma-ray Loud and Gamma-ray Quiet Radio Pulsars – A Unification Scheme
نویسندگان
چکیده
منابع مشابه
A Search for Radio-quiet Gamma-ray Pulsars
Most Galactic point sources of gamma rays remain unidentiÐed. The few (extrasolar) sources that have been identiÐed are all young, rotation-powered pulsars, all but one of which were identiÐed using radio ephemerides. The radio-quiet Geminga pulsar was identiÐed only after pulsations were discovered in a coincident X-ray source. Observational evidence indicates that many of the unidentiÐed Gala...
متن کاملGamma-Ray Bursts from Radio-Quiet Quasars
We study positional coincidences between gamma-ray bursts in the BATSE 3B catalogue and quasars/AGN taken from the Véron-Cetty & Véron compilation. For most classes of AGN, for BL Lac objects and for radio-loud quasars, we find no excess coincidences above random expectation, and we give upper limits for their burst emission rate. However, surprising evidence is found for a positional correlati...
متن کاملGamma-Ray Pulsars
Gamma-ray photons from young pulsars allow the deepest insight into the properties and interactions of high-energy particles with magnetic and photon fields in a pulsar magnetosphere. Measurements with the Compton Gamma-Ray Observatory have led to the detection of nearly ten γ-ray pulsars . Although quite a variety of individual signatures is found for these pulsars, some general characteristic...
متن کاملGamma Ray Pulsars: Observations
High-energy gamma rays are a valuable tool for studying particle acceleration and radiation in the magnetospheres of energetic pulsars. The six or more pulsars seen by CGRO/EGRET show that: the light curves usually have double-peak structures (suggesting a broad cone of emission); gamma rays are frequently the dominant component of the radiated power; and all the spectra show evidence of a high...
متن کاملA Search for Radio-Quiet Gamma-Ray Pulsars in the EGRET Archive
A progress report on our search for radio-quiet gamma-ray pulsars in the EGRET database is presented. The search technique utilizes signi cant computational resources of the Center for advanced Computing Research at Caltech to compute Gigapoint power spectra for some of the brighter, unidenti ed EGRET gamma-ray sources which, like Geminga, may not be visible at radio wavelengths. Two sources, G...
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: Proceedings of the International Astronomical Union
سال: 2017
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921317007256