UV emission from young and middle-aged pulsars: Connecting X-rays with the optical

Details UV emission from young and middle-aged pulsars: Connecting X-rays with the optical UV emission from young and middle-aged pulsars: Connecting X-rays with the optical

2006-09-25

arxiv.org/abs/astro-ph/0609656v1

Astrophys.SpaceSci.308:287-296,2007

Astronomy and Astrophysics

Astrophysics

To appear in Astrophysics and Space Science, Proceedings of "Isolated Neutron Stars: from the Interior to the Surface", eds. D

Scientific paper

10.1007/s10509-007-9383-1

We present the UV spectroscopy and timing of three nearby pulsars (Vela, B0656+14 and Geminga) recently observed with the Space Telescope Imaging Spectrograph. We also review the optical and X-ray properties of these pulsars and establish their connection with the UV properties. We show that the multiwavelengths properties of neutron stars (NSs) vary significantly within the sample of middle-aged pulsars. Even larger differences are found between the thermal components of Ge-minga and B0656+14 as compared to those of radio-quiet isolated NSs. These differences could be attributed to different properties of the NS surface layers.

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