First Results from the Chandra High Energy Transmission Grating Spectrometer
Abstract
The High Energy Transmission Grating Spectrometer gives spectral resolving powers of up to 1000 over the energy range 0.4-8 keV. The HETGS consists of an array of periodic nanostructures of 2000 and 4000 angstrom period that works with the Chandra mirror and the ACIS detector. The instrument is performing as predicted prior to launch. Early results are being obtained on a variety of sources, demonstrating the power of high resolution spectroscopy to probe the physical and astrophysical properties of celestial objects. Examples will be presented, including plasma diagnostics of stellar coronae, spectrally resolved images of supernova remnants, diagnostics of relativistic outflow from a compact X-ray binary, and spectra of accreting black holes in active galactic nuclei.
- Publication:
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APS April Meeting Abstracts
- Pub Date:
- April 2000
- Bibcode:
- 2000APS..APR.J8006C