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to the Orion Collaboration Web Site

The Orion Project is a comprehensive large scale variability photometric survey,
combined with wide-field spectroscopic and IR observations, to find and map the young
stellar population across ~120 square degrees encompassing almost the entire Orion
OB1 association. The main goal is to study the history of star formation in this
nearby stellar nursery, amassing a large and unique observational dataset to explore
the initial stages in the evolution of solar-like and lower mass stars, and investigate
how planetary systems form.
This study spans stellar populations over an age range ~< 1 to ~10 Million years,
in differing environments, from densely populated clusters of vey young stars,
still embedded in their parent gas clouds, like NGC 2024 and the Orion Nebula Cluster,
to somewhat older (~10 million years) stars sparsely distributed over tens of square degrees
in regions devoid of gas and dust, but all regions presumably sharing a common origin.
The Orion survey makes use of wide-field instruments in observatories of Venezuela and the US. Observations with the Spitzer Space Telescope provide mid-IR observations to look for the most embedded objects and study the warm dust emission from protoplanetary disks.
(read more in OrionSurvey)

• Publications
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