File talk:H-r diagram-black white.png

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Are we certain that white dwarf stars can be as small as 0.001 solar radii? Just asking.--guyvan52 (discuss • contribs) 15:52, 8 April 2014 (UTC)[reply]

alternate version

Also, I modified this from an unsourced image at File:H-r diagram.svg. __guyvan52 (discuss • contribs) 16:04, 8 April 2014 (UTC) See, for example,[reply]

File:Hertzsprung-Russel StarData.png

--guyvan52 (discuss • contribs) 16:10, 8 April 2014 (UTC)[reply]

This article suggests that massive white dwarfs (just below the Chandrasekhar limit) can be as small as .0017 solar radii: http://eagle.phys.utk.edu/guidry/astro615/lectures/lecture_ch11.pdf --guyvan52 (discuss • contribs) 15:28, 15 April 2014 (UTC)[reply]

This calculation suggests that the figure is off by a factor of about 1.7, which I suppose is within our understanding, since white dwarfs on the verge of collapsing to neutron stars are probably not well understood. --guyvan52 (discuss • contribs) 15:31, 15 April 2014 (UTC)[reply]

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