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Soft X-ray Absorption Edges in LMXBsThe XMM observation of LMC X-2 is part of our program to study X-ray absorption in the interstellar medium (ISM). This program includes a variety of bright X-ray binaries in the Galaxy as well as the Magellanic Clouds (LMC and SMC). LMC X-2 is located near the heart of the LMC. Its very soft X-ray spectrum is used to determine abundance and ionization fractions of neutral and lowly ionized oxygen of the ISM in the LMC. The RGS spectrum so far allowed us to determine the O-edge value to be for atomic O, the EW of O-I in the ls-2p resonance absorption line, and the same for O-II. The current study is still ongoing in conjunction with other low absorption sources like Sco X-1 and the recently observed X-ray binary 4U 1957+11.
Document ID
20050009884
Acquisition Source
Goddard Space Flight Center
Document Type
Other
Date Acquired
August 22, 2013
Publication Date
June 30, 2004
Subject Category
Astronomy
Report/Patent Number
MIT-6894752
Report Number: MIT-6894752
Funding Number(s)
CONTRACT_GRANT: NAG5-13360
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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