stellarcollapse.org

This figure and accompanying table and references are kindly assembled and kept up to date by Jim Lattimer. The reference of the original figure is Ultimate energy density of observable cold baryonic matter, Lattimer JM, Prakash M, PHYSICAL REVIEW LETTERS 94 111101 (2005).
Cite also as the following url: http://stellarcollapse.org/nsmasses and state the date at which you retrieved the data.

Links: PDF version of the figure; data in tabular format; references.