Atacama Pathfinder EXperiment APEX
MPIfR Bonn   ESO   Onsala Space Observatory
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APEX, the Atacama Pathfinder Experiment, is a collaboration between Max Planck Institut für Radioastronomie (MPIfR) at 50%, Onsala Space Observatory (OSO) at 23%, and the European Southern Observatory (ESO) at 27% to construct and operate a modified ALMA prototype antenna as a single dish on the high altitude site of Llano Chajnantor. The telescope was manufactured by VERTEX Antennentechnik in Duisburg, Germany.

Observing with APEX allows us to study cold dust and gas in our own Milky Way and in distant galaxies. Tracing the thermal continuum emission and analyzing high frequency spectral lines improve our understanding of the structure and chemistry of planetary atmospheres, dying stars, regions of star formation as well as distant starburst galaxies. We can address issues from the vast scales of the structure of the Universe down to the physics and chemistry of comets.


Observations

Site Information and Logistics

The telescope About Sequitor base
Atmosphere About Chajnantor site
Instrumentation APEX telephone list
Observing with APEX

Safety

Preparing an observing run Emergency procedures
APEX data archiving Safety documents and links

The APEX project

Miscellaneous Information

The APEX staff and news Picture gallery
TWiki Chajnantor camera image (Refresh each five minutes)
eGroupware Weather monitor Radiometer data online!
APEX Documents Management System
APEX Intranet (Password protected)