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

Research output: Contribution to journalArticle

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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.

Original languageEnglish (US)
Pages (from-to)1004-1016
Number of pages13
JournalAstronomy and Astrophysics
Volume370
Issue number3
DOIs
StatePublished - Jan 1 2001

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pulsars
photometry
broadband
x rays
power law
Hubble Space Telescope
radio
neutron stars
cooling
frequency ranges
telescopes
energy
radiation
spectral band

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

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
Koptsevich, A. B. ; Pavlov, G. G. ; Zharikov, S. V. ; Sokolov, V. V. ; Shibanov, Yu A. ; Kurt, V. G. / Optical photometry of the PSR B0656+14 and its neighborhood. In: Astronomy and Astrophysics. 2001 ; Vol. 370, No. 3. pp. 1004-1016.
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Koptsevich, AB, Pavlov, GG, Zharikov, SV, Sokolov, VV, Shibanov, YA & Kurt, VG 2001, 'Optical photometry of the PSR B0656+14 and its neighborhood', Astronomy and Astrophysics, vol. 370, no. 3, pp. 1004-1016. https://doi.org/10.1051/0004-6361:20010289

Optical photometry of the PSR B0656+14 and its neighborhood. / Koptsevich, A. B.; Pavlov, G. G.; Zharikov, S. V.; Sokolov, V. V.; Shibanov, Yu A.; Kurt, V. G.

In: Astronomy and Astrophysics, Vol. 370, No. 3, 01.01.2001, p. 1004-1016.

Research output: Contribution to journalArticle

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Koptsevich AB, Pavlov GG, Zharikov SV, Sokolov VV, Shibanov YA, Kurt VG. Optical photometry of the PSR B0656+14 and its neighborhood. Astronomy and Astrophysics. 2001 Jan 1;370(3):1004-1016. https://doi.org/10.1051/0004-6361:20010289