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Geometry and distance of the Magellanic Clouds from Cepheid variables

Journal Article:

Abstract

Period, luminosity and colour data on LMC and SMC Cepheids are analysed. A geometrical model for the LMC and the SMC is presented based on the Cepheids. The distance modulus of each Cloud is redetermined and its dependence upon the assumed abundance deficiency in the Clouds is made explicit. New, independent abundances are inferred based on the Cepheids alone, and are found to agree well with the known HII region abundance deficiencies. The luminosity laws in both galaxies, suitably corrected for abundance, are mutually consistent, enabling a 'universal' PLC and PL relation to be obtained which incorporates all the photoelectric data. (author).
Publication Date:
Jan 15, 1986
Product Type:
Journal Article
Reference Number:
AIX-17-030004; EDB-86-082264
Resource Relation:
Journal Name: Mon. Not. R. Astron. Soc.; (United Kingdom); Journal Volume: 218:2
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CEPHEIDS; MAGELLANIC CLOUDS; COLOR; CORRELATIONS; DISTANCE; ELEMENT ABUNDANCE; GEOMETRY; H2 REGIONS; LUMINOSITY; VARIATIONS; ABUNDANCE; COSMIC RADIO SOURCES; GALAXIES; MATHEMATICS; OPTICAL PROPERTIES; ORGANOLEPTIC PROPERTIES; PHYSICAL PROPERTIES; PULSATING VARIABLE STARS; STARS; VARIABLE STARS; 640105* - Astrophysics & Cosmology- Galaxies
OSTI ID:
5939699
Research Organizations:
Council for Scientific and Industrial Research, Cape Town, South Africa. South African Astronomical Observatory
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: MNRAA
Submitting Site:
INIS
Size:
Pages: 223-246
Announcement Date:

Journal Article:

Citation Formats

Caldwell, J A.R., and Coulson, I M. Geometry and distance of the Magellanic Clouds from Cepheid variables. United Kingdom: N. p., 1986. Web.
Caldwell, J A.R., & Coulson, I M. Geometry and distance of the Magellanic Clouds from Cepheid variables. United Kingdom.
Caldwell, J A.R., and Coulson, I M. 1986. "Geometry and distance of the Magellanic Clouds from Cepheid variables." United Kingdom.
@misc{etde_5939699,
title = {Geometry and distance of the Magellanic Clouds from Cepheid variables}
author = {Caldwell, J A.R., and Coulson, I M}
abstractNote = {Period, luminosity and colour data on LMC and SMC Cepheids are analysed. A geometrical model for the LMC and the SMC is presented based on the Cepheids. The distance modulus of each Cloud is redetermined and its dependence upon the assumed abundance deficiency in the Clouds is made explicit. New, independent abundances are inferred based on the Cepheids alone, and are found to agree well with the known HII region abundance deficiencies. The luminosity laws in both galaxies, suitably corrected for abundance, are mutually consistent, enabling a 'universal' PLC and PL relation to be obtained which incorporates all the photoelectric data. (author).}
journal = {Mon. Not. R. Astron. Soc.; (United Kingdom)}
volume = {218:2}
journal type = {AC}
place = {United Kingdom}
year = {1986}
month = {Jan}
}