Optical spectroscopy of the radio pulsar PSR B0656+14

被引：7

作者：

Zharikov, S. ^{[1
]}

Mennickent, R. E.

Shibanov, Yu.

Komarova, V.

机构：

[1] Univ Nacl Autonoma Mexico, OAN IA, Ensenada, Baja California, Mexico

[2] Univ Concepcion, Concepcion, Chile

[3] RAS, AF Ioffe Phys Tech Inst, St Petersburg, Russia

[4] RAS, Special Astrophys Observ, Nizhnii Arkhyz, Russia

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2007年 / 308卷 / 1-4期

基金：

俄罗斯基础研究基金会;

关键词：

pulsars; spectroscopy; PSR B0656+14;

D O I：

10.1007/s10509-007-9308-z

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have obtained the spectrum of a middle-aged PSR B0656+14 in the 4300-9000 angstrom range with the ESO/VLT/FORS2. Preliminary results show that at 4600-7000 angstrom the spectrum is almost featureless and flat with a spectral index alpha(v) similar or equal to -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 similar to 10(8) G in upper magnetosphere of the pulsar.

引用

页码：545 / 549

页数：5

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