The quasar 3C 273 observed by XMM-Newton and RXTE
Abstract
XMM-Newton has observed the quasar 3C 273 several times between 2000 June and 2003 January. Two simultaneous observations using NASA's Rossi X-ray Timing Explorer (PCA) enables the comparison of the high energy part (2.5-10 keV) of the EPIC spectra with an independent instrument. The spectral parameters are in good agreement between the two satellites. RXTE fluxes are about 30% higher than the XMM EPIC fluxes.
The variability of the high energy component (>2.5 keV) is presented. The high energy component is well described by a single power law model with indices between 1.60-1.79. The individual observations show no evidence for either a narrow or a broad iron line.- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- 2004
- Bibcode:
- 2004MmSAI..75..527S