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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 | Affiliation: | Astro Space Center of Russian Acad. of Sci.) V.V. Sokolov, S.V. Zharykov (Special Astrophysical Observatory of Russian Acad. of Sci. | Abstract: | The 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 | Services: | Forum | Review | PDF | Favorites |
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