Ojeto Thorne-Żytkow e un estela ipotesal en ecuilibra hidrostatical, la estela e interna la otra.
https://web.archive.org/web/20140126042751/http://cow.physics.wisc.edu/~ogelman/guide/tz/
https://ui.adsabs.harvard.edu/abs/1975ApJ...199L..19T/abstract