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29 March 2024
 
  » arxiv » astro-ph/0306517

 Article overview


XMM-Newton observations of the Vela pulsar
Kaya Mori ; Charles J. Hailey ; Frits Paerels ; Silvia Zane ;
Date 25 Jun 2003
Subject astro-ph
Affiliation Columbia University MSSL, UCL
AbstractWe present spectral analysis from XMM-Newton observations of the Vela pulsar. We analyzed thermal emission from the pulsar dominating below ~ 1 keV since extracted spectra are heavily contaminated by nebular emission at higher energy. Featureless high-resolution spectra of the Reflection Grating Spectrometer aboard XMM-Newton suggest the presence of a hydrogen atmosphere, as previously indicated by Chandra results. Both the temperature and radius are consistent with those values deduced from Chandra. The derived Chandra and XMM-Newton temperature of T^{infty} ~ (6.4-7.1)*10^5 K at its age of ~10^4 years is below the standard cooling curve.
Source arXiv, astro-ph/0306517
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