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"# ZPEM2509 Astrophysics Lab 101: Eclipsing Binaries \n",
"\n",
"Developed by Dr. Simon Murphy, UNSW Canberra ([s.murphy@adfa.edu.au](mailto:s.murphy@adfa.edu.au))\n",
"\n",
"Please read the background material in the lab script and complete the light curve simulations in Part II prior to starting this exercise.\n",
"\n",
"
\n",
"\n",
"# Part III: Fundamental properties of the young eclipsing binary 'THOR 42'\n",
"\n",
"
\n",
"\n",
"Now that we have an understanding of how the physical and orbital parameters of an eclipsing binary affect its light curve, we can try to solve the inverse problem and derive the fundamental properties (in particular the masses, radii and semi-major axis) of a binary using its light and velocity curves. \n",
"\n",
"Our target of interest in this lab is the low-mass eclipsing binary __THOR 42__ (otherwise known as CRTS J055255.7-004426), which is a member of a young group of stars called the [32 Orionis Moving Group](https://ui.adsabs.harvard.edu/abs/2017MNRAS.468.1198B/abstract). THOR 42 comprises two M dwarf stars which are smaller, less massive, fainter and cooler than the Sun. You can find more information on the system in the [Simbad database](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=THOR+42&submit=SIMBAD+search). \n",
"\n",
"
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