The population of young stars in Orion A: X-rays and IR properties
Abstract
Stars in the very early stages of their formation are characterized by strong infrared excess and X-ray emission. We present the results of the survey of Orion A in both the infrared and X-rays obtained with the Spitzer and XMM/Newton observatories. We study the spectral-energy distribution class of the young stellar object (YSO) population using infrared colors from 2mass and Spitzer (IRAC and MIPS) and by means of X-ray fluxes, luminosities and plasma temperatures. We discuss clustering properties and spatial segregation among different infrared YSO classes to trace their formation history.
- Publication:
-
Star Clusters: Basic Galactic Building Blocks Throughout Time and Space
- Pub Date:
- January 2010
- DOI:
- 10.1017/S1743921309991852
- Bibcode:
- 2010IAUS..266..509P
- Keywords:
-
- stars: activity;
- stars: formation;
- open clusters and associations: individual (Orion A;
- L1641);
- X-rays: stars;
- infrared: stars