ESPaDOnS
the new generation stellar spectropolarimeter

Designed and constructed at Observatoire Midi-Pyrénées (OMP) in France, ESPaDOnS, the new generation stellar spectropolarimeter, is fully operational and accessible to the whole CFHT community since semester 2005a. Totalling about 40% of the requested time in 2005 (excluding CFHT-LS), ESPaDOnS appears as the most popular CFHT instrument. A total of about 80 scientific nights were already allocated with ESPaDOnS since Feb. 2005; several scientific papers resulting from the first observations are already in press or submitted. An ADS list of selected published papers about ESPaDOnS and ESPaDOnS results is available here.
NARVAL, the twin copy of ESPaDOnS, has just been installed at the 2m TÚlescope Bernard Lyot atop Pic du Midi in the French Pyrenees and is now available to the OPTICON community. This new instrument is fully dedicated to spectropolarimetry.

Recent news:
The spinning magnet of Sun-like stars: are close-in giant planets forcing the engine? published in MNRAS (2008 Feb 12)
Nature's recipe for building new worlds: a zest of magnetic fields? published in MNRAS (2007 Sep 20)
NARVAL@TBL: the first observatory dedicated to stellar magnetism (2007 Feb 01)

Design and performances of ESPaDOnS:
science drivers and instrument details
spectral domain and resolution
spectral response and global efficiency
thermal response and spectral stability
performances of Fresnel rhomb retarders
ccd readout modes and characteristics
Observing with ESPaDOnS:
exposure time calculator (updated)
observers' guide (to come soon)
known technical issues
instrument status
first scientific results
time allocation statistics
Control and data reduction software tools of ESPaDOnS:
control software and user interface
viewing, guiding and exposure meter facilities
temperature and pressure monitoring
observing procedures
data reduction routines
Documentation, picture gallery and credits:
related documentation (restricted access)
description of critical items
examples of frames
examples of spectra
instrument picture gallery
packing, shipping and transport
project team and budget
© Ken Done
ESPaDOnS is a collaborative project funded by France (CNRS, MENESR, OMP, LATT), Canada (NSERC), CFHT and ESA.
The old (and mostly out of date) ESPaDOnS web site can still be accessed at this address.

© Jean-François Donati, last update 2008 Feb 12. statistics: