activity
19992010
most citedX-ray power law spectra in active galactic nuclei

49 citations · 142 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.HE2010★ 20 cited

Synchrotron radio emission in radio-quiet AGNs

W. Ishibashi, T. J. -L. Courvoisier

The basic mechanism responsible for radio emission in radio-loud active galactic nuclei (AGNs) is assumed to be synchrotron radiation. We suggest here that radio emission in radio-…

astro-ph.CO2010★ 49 cited

X-ray power law spectra in active galactic nuclei

W. Ishibashi, T. J. -L. Courvoisier

X-ray spectra of active galactic nuclei (AGN) are usually described as power law spectra, characterized by the spectral slope or photon index . Here we discuss the X-ray spe…

astro-ph.CO2009★ 16 cited

X-ray variability time scales in Active Galactic Nuclei

W. Ishibashi, T. J. -L. Courvoisier

X-ray variability in Active Galactic Nuclei (AGN) is commonly analysed in terms of the Power Spectral Density (PSD). The break observed in the power spectrum can be interpreted as…

astro-ph2005★ 19 cited

Cascades of shocks in Active Galactic Nuclei and their radiation

T. J. -L. Courvoisier, M. Turler

We discuss accretion flows on massive black holes in which different elements of the flow (clumps) have velocities that may differ substantially. We estimate the consequence of col…

astro-ph2004★ 20 cited

Quasar jet emission model applied to the microquasar GRS 1915+105

M. Turler, T. J. -L. Courvoisier, S. Chaty +1

The true nature of the radio emitting material observed to be moving relativistically in quasars and microquasars is still unclear. The microquasar community usually interprets the…

astro-ph2000★ 9 cited

Modelling 20 years of synchrotron flaring in the jet of 3C 273

M. Turler, T. J. -L. Courvoisier, S. Paltani

We present a phenomenological jet model which is able to reproduce well the observed variations of the submillimetre-to-radio emission of the bright quasar 3C 273 during the last 2…