X-Ray Emission from Massive Proto-Stars

Details X-Ray Emission from Massive Proto-Stars X-Ray Emission from Massive Proto-Stars

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1145h&link_type=abstract

Chandra Proposal ID #04200675

Astronomy and Astrophysics

Astrophysics

Chandra Proposal Id #04200675

Scientific paper

The formation of massive stars remains a challenge to contemporary astrophysics. Due to the high extinction in the molecular cloud core where massive stars form direct observation of the massive proto-stars is only possible at high X-ray energies. We propose ACIS-I observations of 2 new massive proto-stars which are still in an active accretion phase. The proposed observations will allow us to determine for the first time the precise position of the massive protostars with respect to the surrounding molecular and ionized gas. The measured luminosity will give first constraints on the physical mechanism responsible for the X-ray emission and we expect to perform spectroscopy to derive physical parameters of the matter in the interface between proto-stellar surface and the accretion disk.

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