NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
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. observation of one of the two objects has taken place and the data were received in late November. The second object is yet to be observed. Over the next year we will: investigate the physical conditions of the emitting gas using emission and recombination line diagnostics to determine temperatures, densities, elemental abundances, and ionization structure; study the behavior of emission features as a function of binary orbit; and test and improve models of X-ray line emission developed by us over the past decade. We will gain insight on both the geometry of the accretion flow and on the evolutionary history of LMXBs.
Document ID
20020009009
Acquisition Source
Goddard Space Flight Center
Document Type
Contractor or Grantee Report
Authors
DilVrtilek, Saeqa
(Smithsonian Astrophysical Observatory Cambridge, MA United States)
Mushotzky, Richard
Date Acquired
August 20, 2013
Publication Date
November 1, 2001
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NAG5-10070
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available