Guillaume Bélanger

Astrophysicist

 

Main Research Fields

I did my PhD on the study of the characteristics of the high energy emission environment in the Galactic Centre in general, and from Sgr A* in particular, working with XMM and INTEGRAL data. Since then, I have worked on developing: statistically motivated methods for detecting transients in space, time, energy and frequency; more sensitive periodogram statistics for detecting weak low frequency periodic signals and for studying the shape of non-sinusoidal pulse profiles; and techniques for modelling red noise and characterising the properties of time-domain signals, all with a particular interest in variable X-ray and gamma-ray sources. My intention is to now apply these methods in a thorough study of the properties of sources in current data archives such as those from the XMM, INTEGRAL and Fermi missions.


Keywords

  • Astrostatistics
  • Statistical methods
  • Time series analysis
  • Periodogram analysis
  • Transient analysis
  • X-ray pulsars

Ongoing collaborations

  • Laboratoire Astroparticule et Cosmologie (APC), Paris, France (R. Terrier)
  • Commissariat a l'energie atomique (CEA), Gif-sur-Yvette, France (A. Goldwurm)
  • University of California in Los Angeles (UCLA), Los Angeles, USA, (M. Morris)
  • University of Arizona, Tucson, USA, (F. Melia)

Publications

Publications

Project/mission at ESA

INTEGRAL