A Chandra Census of C2D YSOS: Evolution of X-ray Emission
Abstract
We present an analytical study of a large sample of ~109 young stellar objects in the X-ray. Our objects were detected in X-ray independent of age. Unexpectedly, the X-ray energy is somewhat correlated with the ages. It decreases with time and with column density, while it should increase. We conclude that the youngest protostars, Class 0/I, emit X-rays in the 1-8 keV band. The deeply embedded sources with the strongest accretion activity are detected in the hard-band (> 2keV) only. Due to extinction, their soft X-rays are not detected. To explain the decline in energy, we suggest that within a timescale of few Myrs the corona cools down via the accretion material.
Keywords
Cite
@article{arxiv.1010.0724,
title = {A Chandra Census of C2D YSOS: Evolution of X-ray Emission},
author = {M. Hamidouche and M. Jacobson and L. W. Looney},
journal= {arXiv preprint arXiv:1010.0724},
year = {2015}
}
Comments
Proceedings SF2A-2010: Meeting held in Marseille, France. June 21-25, 2010. Eds: S. Boissier, M. Heydari-Malayeri, R. Samadi and D. Valls-Gabaud