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Título del libro: Isolated Neutron Stars: From The Surface To The Interior
Título del capítulo: Optical spectroscopy of the radio pulsar PSR B0656+14

Autores UNAM:
SERGUEI SEDOV;
Autores externos:

Idioma:
Inglés
Año de publicación:
2007
Palabras clave:

PSR B0656+14; Pulsars; Spectroscopy


Resumen:

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 a ? ?-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. © Springer Science+Business Media B.V. 2007.


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