NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
White dwarfs, the Galaxy and Dirac's cosmologyThe additive and multiplicative versions of Dirac's cosmological hypothesis relating the gravitational constant variation with elapsed time and number of particles populating the universe is invoked to account for the deficiency or absence of white dwarfs fainter than about 0.0001 solar luminosity. An estimate is made of white dwarf luminosity in accordance with the two evolutionary models, and it is conjectured that some old white dwarfs with high space velocities may be on the verge of gravitational collapse. Lack of a special mechanism to produce the vast numbers of black holes or other dead stars accounting for 'missing matter' in the vicinity of the sun and in the galactic halo is noted in Dirac's multiplicative model. Results indicate that either Dirac's theory is untenable, or that radiation and heating are of some unknown nature, or that the process of creation of new matter requires a corresponding input of energy.
Document ID
19760057852
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Stothers, R.
(NASA Goddard Institute for Space Studies New York, N.Y., United States)
Date Acquired
August 8, 2013
Publication Date
August 5, 1976
Publication Information
Publication: Nature
Volume: 262
Subject Category
Astrophysics
Accession Number
76A40818
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available