Interstellar X-Ray Absorption Spectroscopy of Oxygen, Neon, and Iron with the Chandra LETGS Spectrum of X0614+091
- Savin, Daniel Wolf
- Kahn, S. M.
- Paerels, Frederik B.
- Brinkman, A. C.
- Van der Meer, R. L. J
- Kaastra, J. S.
- Kuulkers, E.
- Den Boggende, A. J. F.
- Predehl, P.
- Drake, Jeremy J.
- Mclaughlin, Brendan M.
Publication date
January 2001
DOI Publisher
Columbia University Libraries/Information ServicesAbstract
We find resolved interstellar O K, Ne K, and Fe L absorption spectra in the Chandra X-Ray Observatory Low-Energy Transmission Grating Spectrometer (LETGS) spectrum of the low-mass X-ray binary X0614+091. We measure the column densities in O and Ne and find direct spectroscopic constraints on the chemical state of the interstellar O. These measurements probably probe a low-density line of sight through the Galaxy, and we discuss the results in the context of our knowledge of the properties of interstellar matter in regions between the spiral arms
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