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Optical photometry of the PSR B0656+14 and its neighborhood | | A. B. Koptsevich
; G. G. Pavlov
; S. V. Zharikov
; V. V. Sokolov
; Yu. A. Shibanov
; V. G. Kurt
; | | Date: |
5 Sep 2000 | | Subject: | astro-ph | | Affiliation: | 1,2,3), G. G. Pavlov , S. V. Zharikov (3,4), V. V. Sokolov , Yu. A. Shibanov , V. G. Kurt ( Ioffe Inst., Russia; PSU; SAO RAS, Russia; OANIA UNAM, Mexico; ASC RAS, Russia | | Abstract: | We present the results of the broad-band photometry of the nearby middle-aged radio pulsar PSR B0656+14 and its neighborhood obtained with the 6-meter telescope of the SAO RAS and with the Hubble Space Telescope. The broad-band spectral flux $F_
u$ of the pulsar decreases with increasing frequency in the near-IR range and increases with frequency in the near-UV range. The increase towards UV can be naturally interpreted as the Rayleigh-Jeans tail of the soft thermal component of the X-ray spectrum emitted from the surface of the cooling neutron star. Continuation of the power-law component, which dominates in the high-energy tail of the X-ray spectrum, to the IR-optical-UV frequencies is consistent with the observed fluxes. This suggests that the non-thermal pulsar radiation may be of the same origin in a broad frequency range from IR to hard X-rays. We also studied 4 objects detected in the pulsar’s 5" neighborhood. | | Source: | arXiv, astro-ph/0009064 | | Services: | Forum | Review | PDF | Favorites | |
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