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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 | Abstract: | We 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 | Services: | Forum | Review | PDF | Favorites |
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