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Highly Ionized Absorption in the X-ray Spectrum of Cyg X-1
H. L. Marshall, N. S. Schulz, T. Fang +4
Using the Chandra High Energy Transmission Grating Spectrometer (HETGS), we have found significant absorption features in the X-ray spectrum of Cyg X-1 taken in the continuous cloc…
The Chandra High Energy Transmission Grating Spectrometer probes the dusty warm absorber in the Seyfert 1 galaxy MCG--6-30-15
J. C. Lee, C. R. Canizares, H. L. Marshall +4
The Chandra HETGS spectra of the Seyfert 1 galaxy MCG--6-30-15 show numerous narrow, unresolved (FWHM < 200 km/s) absorption lines from a wide range of ionization states of N, O, M…
X-ray Spectra and Light Curves of AR Lac: Temperature Structure, Abundances, and Variability
David Huenemoerder, Claude Canizares, Kevin Tibbetts
We observed AR Lac, an eclipsing RS CVn binary star, with the Chandra High Energy Grating Spectrometer for a total of 100 ks divided into six intervals covering both quadratures an…
Chandra Observations of a Cluster and Two Quasars at High Redshift
C. R. Canizares, T. E. Jeltema, T. Fang +6
We observed MS 1054-0321, the highest redshift cluster of galaxies in the Einstein Medium Sensitivity Survey (EMSS), with the Chandra ACIS-S detector. We find the X-ray temperature…
High Resolution Spectroscopy of Two Oxygen-Rich SNRs with the Chandra HETG
C. R. Canizares, K. A. Flanagan, D. S. Davis +3
The HETG can be used to obtain spatially resolved spectra of moderately extended sources. We present preliminary results for two well studied, oxygen rich supernova remnants in the…
Ionization and Velocity Structure in the Supernova Remnant E0102-72
K. A. Flanagan, C. R. Canizares, D. S. Davis +4
The High Energy Transmission Grating (HETG) Spectrometer aboard the Chandra X-Ray Observatory was used to observe E0102-72, a ~1000 year old, oxygen rich supernova in the Small Mag…