The Eagle Nebula: Pillars of Creation, EGGs, and PMS Stars in NGC 6611

Details The Eagle Nebula: Pillars of Creation, EGGs, and PMS Stars in NGC 6611 The Eagle Nebula: Pillars of Creation, EGGs, and PMS Stars in NGC 6611

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20921920l&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #219.20; Bulletin of the American Astronomical Society,

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We report on our 78 ks Chandra ACIS-I observation of the Eagle Nebula (M16) and the young cluster NGC 6611. We detected a total of 1101 X-ray sources, most of which are PMS stars in the cluster. Near the tip of the one of the Pillars of Creation, we detect a luminous X-ray source M16ES-1 which we believe is a high mass embedded protostar perhaps heated by magnetically channeled wind shocks. We detected no X-rays from the EGGs, the evaporating gaseous globules first observed in a WFPC2 image by Hester et al. (1996) near the edges of the Pillars. The EGGs could contain condensations that are very early stages of low mass star formation. The nondetection of EGGs with embedded infrared sources at X-ray luminosities well below the low-mass PMS stars in Orion indicates either that the EGGs do not contain protostars or that at the very early stage of evolution low-mass protostars have not yet become X-ray active. We also report on the X-ray properties of the YSOs in NGC 6611 and compare their properties to the YSOs in the Orion Nebula Cluster and other young clusters.
This work is supported by NASA through grant H-04630D to the University of Colorado.

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