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Optical spectroscopy of the radio pulsar PSR B0656+14

  • S. ZharikovEmail author
  • R. E. Mennickent
  • Yu. Shibanov
  • V. Komarova
Conference paper

Abstract

We have obtained the spectrum of a middle-aged PSR B0656+14 in the 4300–9000 Å range with the ESO/VLT/FORS2. Preliminary results show that at 4600–7000 Å the spectrum is almost featureless and flat with a spectral index αν≃−0.2 that undergoes a change to a positive value at longer wavelengths. Combining with available multiwavelength data suggests two wide, red and blue, flux depressions whose frequency ratio is about 2 and which could be the 1st and 2nd harmonics of electron/positron cyclotron absorption formed at magnetic fields ∼108 G in upper magnetosphere of the pulsar.

Keywords

Pulsars Spectroscopy PSR B0656+14 

PACS

97.60.Jd 

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Copyright information

© Springer 2007

Authors and Affiliations

  • S. Zharikov
    • 1
    Email author
  • R. E. Mennickent
    • 2
  • Yu. Shibanov
    • 3
  • V. Komarova
    • 4
  1. 1.OAN IA UNAMEnsenadaMexico
  2. 2.Universidad de ConcepcionConcepcionChile
  3. 3.Ioffe Physical Technical Inst., RASSt. PetersburgRussia
  4. 4.Special Astrophysical Observatory, RASNizhnii ArkhyzRussia

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