Marc Türler's home page

Welcome to my home page with some links on my research activities in astrophysics conducted at the University of Geneva.


Dr Marc Türler
ISDC Data Centre for Astrophysics
ch. d'Ecogia 16
1290 Versoix
Tel: +41 22 379 21 45
Fax: +41 22 379 21 33
E-mail: marc.turler @


Outburst Modelling in Astrophysical Jets
This is my main research field which I started during my PhD and continues to offer very interesting development opportunities. It allows to study the physics of energetic jets powered by super-massive black holes in blazars or by solar mass black holes in microquasars located in our Galaxy. The link above points to a full description of this work with nice animated images, links, etc. I am leading an international team of the International Space Science Institut (ISSI) in Bern with the aim to develop both theoretically and pratically the integration of the high-energy X-ray and gamma-ray emission of blazar in the modelling (see the Team WWW page).
Long-term multi-wavelength variability of 3C 273
The bright quasar 3C 273 is my favourite source. During my PhD, we compiled a large database of most multi-wavelength observations of 3C 273 since its discovery almost 50 years ago. The publicly available database (linked above) has been updated recently and contains more than 20'000 measurements in 70 lightcurves from the radio to the gamma-ray domain. The data have been used in several publications on the multi-wavelength variability properties of 3C 273.
Analysis of INTEGRAL's Earth Observations
This was a long lasting effort on the analysis of the detector lightcurves from the INTEGRAL Earth occultation observations of early 2006. The study finally provided state-of-the-art hard X-ray spectra in the 20-200 keV range for three fundamental diffuse components: the cosmic X-ray background (CXB), the Galactic ridge X-ray emission (GRXE) and the Earth emission.
Planck activities and research
As the coordinator of the ISDC Planck software development team and as a Planck Scientist and LFI CoI, I am involved in the Planck science on foreground sources, in particular as the co-leader of the research group on science related to quasars and blazars, the most variable active galactic nuclei. Planck provides crucial measurements to characterize their spectral energy distribution from the radio to the submillimeter range. Planck can also detected serendipitously strong flaring activity in some blazars.


Last update: 31 May 2012