Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.163..229r&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 163, no. 2, Jan. 1990, p. 229-240.
Astronomy and Astrophysics
Astrophysics
5
Solar Neighborhood, Star Formation, Stellar Luminosity, White Dwarf Stars, Radiation Distribution, Star Formation Rate, Stellar Evolution, Stellar Mass
Scientific paper
It is known that intermediate and low-mass stars evolve finally to white dwarfs of mass characteristically centered around 0.6 solar mass. The observed luminosity distribution and the theoretical cooling curves of such white dwarfs are used in this work to estimate the rate of formation of these and, hence, of their progenitors in the solar neighborhood as a function of time. It is found that the star formation rate has remained fairly constant over the past 10-12 billion years, and that the observed number density of the local white dwarfs matches quite well with that expected from the mass functions of the local stars.
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