| Autor: |
Kurt, V.G., Komberg, B.V., Sokolov, V.V., Zharykov, S.V. |
| Zdroj: |
Astrophysics & Space Science; Jul1997, Vol. 252 Issue 1/2, p451-460, 10p |
| Abstrakt: |
BVR data for the middle-aged radio pulsar PSR 0656+14 obtained on January 20-21, 1996 at the 6-m telescope of the Special Astrophysical Observatory are presented. The brightness of a star-like object coincident with the position of the VLA radio source in the Cousins B filter is B ≈ 25.1, with λeff = 4448Å, adjacent to the HST F130LP long-pass filter. The relatively large V and R fluxes (≲3σ or > 10-30 ergs cm-2 s-2 Hz-1) provide evidence that the optical emission of this pulsar is non-thermal up to λ ≈ 6600 Å. Most probably, in the UV-optical (BVR) spectral range, a power-law spectrum is super-imposed on the thermal-like emission of the neutron star surface, which could be related to the mechanism of the pulsar activity itself. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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