An astrophysical investigation of four classical cepheid variable stars
Schmidt, Edward G
Since Leavitt (1912 ) made the extraordinary finding that
there was a correlation between the periods and the brightnesses of
cepheid variables in the Small Magellanic Cloud, these stars have been
an extremely important source of distance information in astronomy .
Numerous attempts were made following this discovery to calibrate the
period-luminosity law and apply it to problems of galactic structure
and extragalactic distances. The intrinsic brightness of these stars
together with the...[Show more]
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