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Radiation efficiencies of the pulsars detected in the optical range

2004/10/06 by S. Zharikov, S. V. Zharikov, Yu. A. Shibanov +6
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #Geophysics and Gravity Measurements #High-pressure geophysics and materials #Pulsars and Gravitational Waves Research #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0410152

7 pages, 6 figures, Submitted to: Advances in Space Research, Proceedings of the 35th. COSPAR Scientific Assembly (Paris, France 18-25 July 2004), revised version

openalex publication_date 2004/10/06 · arxiv created 2005/01/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Using available multiwavelength data for the pulsars of different ages detected in the optical range, we analyze the efficiencies of the conversion of the pulsar spindown power E into the observed non-thermal luminosity L in different spectral domains. We find that these pulsars show significantly non-monotonic dependencies of the optical and X-ray efficiencies (η= L/E) versus pulsar age with a pronounced minimum at the beginning of the middle-age epoch and comparably higher efficiencies of younger and older pulsars. In addition, we find a strong correlation between the optical and 2--10 keV X-ray luminosities of these pulsars that implies the same origin of their nonthermal emission in both spectral domains.

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