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Spectroscopy of Low Mass X-Ray Binaries: New Insights into AccretionThis project is to observe two low mass X-ray binaries, chosen for their X-ray brightness, low column density, and diversity of accretion behavior. The high spectral resolution of the RGS, the broad energy range and tremendous collecting power of EPIC, and simultaneous optical monitoring with the OM are particularly well-suited to these studies. The second of two objects was observed on September of 2002. Data analysis for both observation has been completed: an investigation of the physical conditions of the emitting gas using emission and recombination line diagnostics to determine temperatures, densities, elemental abundances, and ionization structure. A study of behavior of the emission features as a function of binary orbit shows modulated behavior in one of the systems. A paper on "High-resolution observations of low-mass X-ray binaries" is near completion. The paper includes observations with the Chandra HETG that are not yet completed.
Document ID
20040034009
Acquisition Source
Goddard Space Flight Center
Document Type
Contractor or Grantee Report
Authors
DilVrtilek, Saeqa
(Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Mushotsky, Richard
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 21, 2013
Publication Date
March 1, 2004
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NAG5-10070
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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