XMM-Newton observations of the Vela pulsar
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∞~=(6.4-7.1)×105 K at its age of ~104 years is below the standard cooling curve.
- Publication:
-
Advances in Space Research
- Pub Date:
- 2004
- DOI:
- 10.1016/j.asr.2003.06.017
- arXiv:
- arXiv:astro-ph/0306517
- Bibcode:
- 2004AdSpR..33..503M
- Keywords:
-
- XMM-Newton observations;
- Vela pulsar;
- Thermal emissions;
- Astrophysics
- E-Print:
- 6 pages, 3 figures, accepted for publication in Adv Sp Res: Proceedings of the 34th COSPAR Scientific Assembly
