Classical Cepheids and the local chemical inhomogeneities in the galactic disc

Giridhar, S

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dc.contributor.author	Giridhar, S
dc.date.accessioned	2008-09-22T12:17:19Z
dc.date.available	2008-09-22T12:17:19Z
dc.date.issued	1986-06
dc.identifier.citation	Journal of Astrophysics and Astronomy, Vol. 7, No. 2, pp. 83 - 98	en
dc.identifier.issn	0250-6335
dc.identifier.uri	http://hdl.handle.net/2248/3771
dc.description.abstract	Places of formation have been derived for a sample of 23 Cepheids with well-determined atmospheric abundances in an attempt to study the chemical inhomogeneities in the local interstellar medium. The abundance data available for the sample Cepheids is compiled and critically reviewed to adopt the most reliable estimates. It is found that the most conspicuous irregularity in the metallicity is exhibited by stars that are born in the local arm or in the interarm region. A scenario to explain these local variations in terms of supernova-induced star formation in interstellar gas enriched by massive stars formed in the density wave is proposed.	en
dc.language.iso	en	en
dc.relation.uri	http://ads.ari.uni-heidelberg.de/abs/1986JApA....7...83G	en
dc.subject	Cepheid Variables	en
dc.subject	Chemical Composition	en
dc.subject	Galactic Structure	en
dc.subject	Interstellar Matter	en
dc.subject	Milky Way Galaxy	en
dc.subject	Stellar Evolution	en
dc.subject	Abundance	en
dc.subject	Density Wave Model	en
dc.subject	Inhomogeneity	en
dc.subject	Metallicity	en
dc.subject	Spatial Distribution	en
dc.subject	Stellar Atmospheres	en
dc.subject	Stellar Mass	en
dc.subject	Supernovae	en
dc.title	Classical Cepheids and the local chemical inhomogeneities in the galactic disc	en
dc.type	Article	en