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29 March 2024
 
  » arxiv » astro-ph/9701167

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Optical observations of nearby isolated pulsar PSR 0656+14 at the 6-meter telescope
V.G. Kurt ; B.V. Komberg V.V. Sokolov ; S.V. Zharykov ;
Date 22 Dec 1996
Journal Astrophys.Space Sci. 252 (1997) 451-460
Subject astro-ph
AffiliationAstro Space Center of Russian Acad. of Sci.) V.V. Sokolov, S.V. Zharykov (Special Astrophysical Observatory of Russian Acad. of Sci.
AbstractThe data of BVR observations of the middle-aged radio pulsar PSR 0656+14 on January, 20/21 at the BTA (6-m) are presented. The brightness is determined in Cousins B filter B ~~25.1 with lambda_eff=4448A in adjacent for HST F130LP long-pass filter of a star-like object, coinsiding with the position of VLA radio source. Relatively large observed V and R fluxes (<~3sigma or > 10E-30 ergs cm^-2 s^-2 Hz^-1) can witness a non-thermal nature of optical radiation of this pulsar up to lambda~~6600A. Most probably in the UV-optical (BVR) spectral range a power-law spectrum is superimposed on the thermal-like radiation of the entire neutron star surface what can be related to a mechanism itself of the pulsar activity.
Source arXiv, astro-ph/9701167
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