Hartle-Thorne metric
(HT metric, Hartle-Thorne approximation)
(metric approximating GR effects of slow neutron star rotation)
The Hartle-Thorne metric (HT metric or Hartle-Thorne approximation)
is a metric that approximates a general relativity solution for the surface
of a slowly-rotating rigid body. The metric was developed
in the late 1960s by James Hartle and Kip Thorne. It has been used
modeling neutron stars.
(mathematics,physics,relativity,theory)
Further reading:
https://en.wikipedia.org/wiki/Hartle-Thorne_metric
https://ui.adsabs.harvard.edu/abs/1968ApJ...153..807H/abstract
https://ui.adsabs.harvard.edu/abs/2013ApJ...777...68B/abstract
https://ui.adsabs.harvard.edu/abs/2005MNRAS.358..923B/abstract
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