Replying to: M. Alford et al. Nature 445, doi: 10.1038/nature05582 (2007) In their comment on my theoretical interpretation of the observations of EXO 0748-676, Alford et al. suggest variants of quark-matter equations of state that produce stars consistent with my results. They do not challenge either the method that I propose or my conclusion that the data require a stiff equation of state.
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