Ultraviolet emission from young and middle-aged pulsars |
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Authors: | Oleg Kargaltsev George Pavlov |
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Affiliation: | (1) Department of Astronomy & Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA |
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Abstract: | 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 Geminga 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. This work was supported by STScI grants GO-9182 and GO-9797 and NASA grant NAG5-10865. |
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Keywords: | Neutron Stars Pulsars Geminga PSR B0656+14 Vela pulsar RX J1856.5-3754 RX J0720.4-3125 RX J1308.6+2127 |
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