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Evolution of the solar 'constant'

Conference:

Abstract

Variations in solar luminosity over geological time are discussed in light of the effect of the solar constant on the evolution of life on earth. Consideration is given to long-term (5 - 7% in a billion years) increases in luminosity due to the conversion of hydrogen into helium in the solar interior, temporary enhancements to solar luminosity due to the accretion of matter from the interstellar medium at intervals on the order of 100 million years, and small-amplitude rapid fluctuations of luminosity due to the stochastic nature of convection on the solar surface. It is noted that encounters with dense interstellar clouds could have had serious consequences for life on earth due to the peaking of the accretion-induced luminosity variation at short wavelengths.
Authors:
Publication Date:
Jun 01, 1980
Product Type:
Conference
Report Number:
CONF-7810136-
Reference Number:
EDB-82-175670
Resource Relation:
Journal Name: Origins Life; (Netherlands); Journal Volume: 10; Conference: 4. College Park colloquium on chemical evolution, limits of life, College Park, MD, USA, 18 Oct 1978
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SOLAR CONSTANT; PLANETARY EVOLUTION; BIOLOGICAL EVOLUTION; CONVECTION; EARTH PLANET; HEAT TRANSFER; HELIUM; HYDROGEN; INTERSTELLAR SPACE; LUMINOSITY; PLANET-SYSTEM ACCRETION; SOLAR ATMOSPHERE; SOLAR FLUX; TIME DEPENDENCE; ATMOSPHERES; ELEMENTS; ENERGY TRANSFER; FLUIDS; GASES; NONMETALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PLANETS; RARE GASES; SOLAR SYSTEM EVOLUTION; SPACE; 640104* - Astrophysics & Cosmology- Solar Phenomena
OSTI ID:
7041131
Research Organizations:
Max-Planck-Institut fuer Physik und Astrophysik, Munich, West Germany
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: OGLFA
Submitting Site:
HEDB
Size:
Pages: 105-110
Announcement Date:
Aug 01, 1981

Conference:

Citation Formats

Newman, M J. Evolution of the solar 'constant'. Netherlands: N. p., 1980. Web.
Newman, M J. Evolution of the solar 'constant'. Netherlands.
Newman, M J. 1980. "Evolution of the solar 'constant'." Netherlands.
@misc{etde_7041131,
title = {Evolution of the solar 'constant'}
author = {Newman, M J}
abstractNote = {Variations in solar luminosity over geological time are discussed in light of the effect of the solar constant on the evolution of life on earth. Consideration is given to long-term (5 - 7% in a billion years) increases in luminosity due to the conversion of hydrogen into helium in the solar interior, temporary enhancements to solar luminosity due to the accretion of matter from the interstellar medium at intervals on the order of 100 million years, and small-amplitude rapid fluctuations of luminosity due to the stochastic nature of convection on the solar surface. It is noted that encounters with dense interstellar clouds could have had serious consequences for life on earth due to the peaking of the accretion-induced luminosity variation at short wavelengths.}
journal = {Origins Life; (Netherlands)}
volume = {10}
place = {Netherlands}
year = {1980}
month = {Jun}
}