6 papers · 1 filter
Stellar Coronal Spectroscopy with the Chandra HETGS
David P. Huenemoerder, Bram Boroson, Norbert S. Schulz +4
Spectroscopy with the Chandra High Energy Transmission Grating Spectrometer provides details on X-ray emission and activity from young and cool stars through resolution of emission…
Highly Resolved X-ray Spectra with Chandra: Dynamics of Neutral and Ionized Matter
Norbert S. Schulz
The High Energy Transmission Grating Spectrometer (HETGS) onboard the Chandra X-ray Observatory has so far produced a large number of high resolution X-ray spectra with unprecedent…
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…
Chandra--ASCA--RXTE observations of the micro-quasar GRS 1915+105
J. C. Lee, N. S. Schulz, C. S. Reynolds +2
A Chandra AO1 30ks HETGS observation of the X-ray transient micro-quasar GRS 1915+105 reveals absorption edges and faint line emission over the HETG energy range. We find from a pr…
Broad P Cygni X-ray Lines from Circinus X-1
N. S. Schulz, W. N. Brandt
Chandra High Energy Transmission Grating Spectrometer (HETGS) observations of the extremely luminous and violent X-ray binary Cir X-1 reveal many X-ray emission lines showing broad…