Cool Stars 14 - Submitted Abstract # 183
This version created on 05 October 2006

Properties of the PMS stars in the Orion Nebula Cluster from the UV to
24 microns photometry


Loredana Prisinzano, INAF-Palermo, Italy
John R. Stauffer, Spitzer Science Center, Pasadena, CA
Luisa Rebull, Spitzer Science Center Pasadena, CA
Tom Megeath, University of Toledo, Ohio
Kester Smith, Space Telescope Science Institute, Baltimore, MD
Massimo Robberto, Space Telescope Science Institute, Baltimore, MD
David R. Soderblom, Space Telescope Science Institute, Baltimore, MD

We are working on a project to study the PMS stars in the Orion Nebula
Cluster using HST Treasury photometry and Spitzer IRAC imaging.  Two
topics we hope to address are the age spread in Orion and correlations
between disk properties (e.g.  accretion rate) and rotation.  As part
of the age spread effort, we have been comparing theoretical
isochrones to empirical photometry in order to determine the best
means to derive cluster ages.  For the latter project, we have been
developing a database of Orion PMS photometry from the UV to 24
microns.  We will discuss on initial results and plans for the
future...

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