The effect of a variable massluminosity ratio on the cosmic density.
Abstract
The effect on the cosmic density of the possibility that galaxian mass varies as a power of luminosity is examined. The smaller the exponent, the greater the mean density. It is possible to close the universe if the brighter galaxies have a massluminosity ratio of 250 (Hubble constant 100 km per sec per Mpc) and mass varies as the onefourth power of luminosity.
 Publication:

Publications of the Astronomical Society of the Pacific
 Pub Date:
 April 1975
 DOI:
 10.1086/129765
 Bibcode:
 1975PASP...87..335N
 Keywords:

 Cosmology;
 Galactic Radiation;
 Mass Distribution;
 Space Density;
 Stellar Luminosity;
 Hubble Diagram;
 Logarithms;
 Ratios;
 Spiral Galaxies;
 Universe;
 Astrophysics