Teacher and researcher in astronomy & astrophysics. Speciality: Experimental astronomy.

Professor at the Paul Sabatier University (Toulouse). I worked in astrochemsitry from 1992 to 2009. I studied astrochemistry of organometallic molecules in the interstellar matter and initiated the CASSIS project. Since 1998, I work on the early optical follow-up of gamma-ray bursts using the TAROT telescopes. Since 2010, I have extended the early optical follow-up to neutrino, gravitational wave and fast radio burst alerts. I am involved in the SVOM mission. I am also using small robotized telescopes in my backyard at home to perform scientific observations.


Having the status of professor of university I must teach at less 192 hours/year:
1996-2008: Licences & Masters mainly in physics and physical chemistry.
2009-today: Institut Universitaire de Technologie, department Mesures Physiques.


Main professional address:
Institut de Recherche en Astrophysique et Planétologie (IRAP)
IRAP Site Belin 14 Avenue Edouard Belin

All publications in astrophysics data system
Refered publications in astrophysics data system


My PhD (1996) was entitled "Contribution to Astrochemistry of organometallic molecules in the interstellar and circumstellar media. Theoretical and experimental approaches".
I also worked on these subjects:
More informations...

Gamma-Ray Bursts

Using the TAROT telescopes we recorded early optical images of more than 200 gamma-ray bursts since 2000. Since 2005 I am involved in the SVOM project which will be a new GRB trigger provider. More informations...


Photometric analysis of young star clusters to find young brown dwarfs.
More informations...

Galactic variable stars

Using the TAROT telescopes we recorded thousands of light curves of variable stars. More informations...

Extra-galactic variable stars

Using the TAROT telescopes we recorded images to detect supernovae and to record light curves of quasars. More informations...

Minor planets

Before 2000, I used my backyard telescope to discover asteroids. Since 2004, using the TAROT telescopes we recorded systematically stars with a potential occulation by an asteroid. We used also many telescopes to participate to light curve follow-up or stellar occultations. More informations...

Solar eclipses

More informations...

Techniques in astronomy and astrophysics

I Participated of the AUDE association to create the AUDINE camera and the AudeLA software. I also participate to the creation of a new telescope as the Rapido project with Pierre Thierry. More informations...

Some favorite links


My private web site :
Aladin to dispaly field charts
GRB coordinate network :
Minor Planet & Comet Ephemeris Service :
European Asteroidal Occultations :
CdR/CdL: Courbe de rotation et luminosité :
Minor Planet Checker :
The STScI Digitized Sky Survey :
Supernovae :
Many catalogs at IMCCE : IMCCE catalogs to download
SDSS catalog : SDSS DR14
VSX catalog simplified form. Coordinates  Sexagesimal   Decimal   

Bibliography Search : Astro-ph

Optical photometry

CCD photometry accuracy :
Converting from STMAG to Johnson UBVRI and Cousins RI :
OGLE Photometry Database :

Optical spectroscopy

Christian Buil ,Spectroscopy, CCD and Astronomy :
Benjamin Mauclaire :
Lhires3 - Spectroscopie Haute Résolution :

Camera links

Atik driver Linux
QHYCCD driver Linux

Telescope links

ETX Weasner tech. informations

  Domeyko estacion, Chile