## Steiner, Heinke, Bogdanov et al. (2018) Data Files

The files are stored in HDF5 format. Some documentation is provided here. The main table is stored in a group named "markov_chain0". The table contains a group "col_names" which gives all the column names stored as two arrays. An integer array contains the number of characters in each column, and a character array contains the characters in the column names with no space between them. If you use "h5dump -r" to look at the column names you'll see what I mean. The columns with a index, i.e. R_43, refer to vector quantities (an array for each MCMC iteration), which are stored on a fixed grid. In the case of the radii, they are stored on a fixed gravitational mass grid. In this case, the grid begins at $\mathrm{M}_{\odot}=0.2$ (for R_0) and ends at 3.0 (for R_99), so R_43 stores a quantity very close to the radius of a 1.4 solar mass neutron star. This is stored in, e.g. "markov_chain0/data/R_43".

Also, in case it is helpful, see, e.g., lines 104-117 of bamr_class.cpp. Let me know if you have more questions.

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