Simultaneous observations of the quasar 3C 273 with INTEGRAL, XMM-Newton and RXTE

Abstract

INTEGRAL has observed the bright quasar 3C 273 on 3 epochs in January 2003 as one of the first observations of the open programme. The observation on January 5 was simultaneous with RXTE and XMM-Newton observations. We present here a first analysis of the continuum emission as observed by these 3 satellites in the band from 3 keV to 500 keV. The continuum spectral energy distribution of 3C 273 was observed to be weak and steep in the high energies during this campaign. We present the actual status of the cross calibrations between the instruments on the three platforms using the calibrations available in June 2003.

arXiv comment4 figures, accepted for publication in A+A letters

References in corpus (8)

• ISGRI: the INTEGRAL Soft Gamma-Ray Imager
• The INTEGRAL Science Data Centre (ISDC)
• The INTEGRAL/IBIS Scientific Data Analysis
• Low Luminosity States of the Black Hole Candidate GX 339-4. I. ASCA and Simultaneous Radio/RXTE Observations
• 30 years of multi-wavelength observations of 3C 273
• The Bright Quasar 3C 273
• INTEGRAL/SPI ground calibration
• The Spiros imaging software for the Integral SPI spectrometer

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