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Equation 3 · Part 1 · A Neutron Star Is a Redshift Standard

Symbol R

RR
RR

What this part means

R is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

R is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

The relation itself is old and simple. For a spherical, non-rotating exterior, the surface redshift zsz_s follows from the mass M and radius R as

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the article section

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