Searches for Absorption Lines in Neutron Star Atmospheres
Herman L Marshall
MIT Kavli Institute
There have been many observations of neutron stars with high resolution X-ray spectrometers where the primary goal was to observe narrow absorption features that could then be used to determine the surface redshift. To date, there is still only one reported detection. I will summarize results from many of the observations using the Chandra grating spectrometers, including X-ray bursters, magnetars, and weakly magnetized isolated neutron stars. I will describe some of the difficulties involved and what efforts may be required.
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