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

doi:10.1051/0004-6361:20010289

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

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Abstract

We present the results of 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_v 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 within 5″ from the pulsar.

Original language	English (US)
Pages (from-to)	1004-1016
Number of pages	13
Journal	Astronomy and Astrophysics
Volume	370
Issue number	3
DOIs	https://doi.org/10.1051/0004-6361:20010289
State	Published - Jan 1 2001

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All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Koptsevich, A. B., Pavlov, G. G., Zharikov, S. V., Sokolov, V. V., Shibanov, Y. A., & Kurt, V. G. (2001). Optical photometry of the PSR B0656+14 and its neighborhood. Astronomy and Astrophysics, 370(3), 1004-1016. https://doi.org/10.1051/0004-6361:20010289

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abstract = "We present the results of 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 Fv 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 within 5″ from the pulsar.",

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AU - Koptsevich, A. B.

AU - Pavlov, G. G.

AU - Zharikov, S. V.

AU - Sokolov, V. V.

AU - Shibanov, Yu A.

AU - Kurt, V. G.

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N2 - We present the results of 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 Fv 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 within 5″ from the pulsar.

AB - We present the results of 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 Fv 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 within 5″ from the pulsar.

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10.1051/0004-6361:20010289