Matches in SemOpenAlex for { <https://semopenalex.org/work/W4300537304> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W4300537304 abstract "Hubble Space Telescope (HST) colour - magnitude diagrams in B, V and R along with long-slit Multiple Mirror Telescope (MMT) spectrophotometric data are used to investigate the evolutionary status of the nearby blue compact dwarf (BCD) galaxy I Zw 18. We find that the distance to I Zw 18 should be as high as 20 Mpc, twice the previously accepted distance, to be consistent with existing observational data on the galaxy: colour-magnitude diagrams, the high ionization state of the gas and presence of WR stars in the main body, and the ionization state of the C component. The spectral energy distribution (SED) of the main body of I Zw 18 is consistent with that of a stellar population with age < 5 Myr. However, the presence of large-scale shells observed around the main body suggests that star formation began ~ 20 Myr at the NW end and propagated in the SE direction. Our analysis of colour-magnitude diagrams and of the spectral energy distribution of the C component implies that star formation in this component started < 100 Myr ago at the NW end, propagated to the SE and stopped ~ 15 Myr ago. Thus, I Zw 18 is likely to be one of the youngest nearby extragalactic objects." @default.
- W4300537304 created "2022-10-03" @default.
- W4300537304 creator A5001911352 @default.
- W4300537304 creator A5028173176 @default.
- W4300537304 creator A5031924876 @default.
- W4300537304 creator A5060495397 @default.
- W4300537304 creator A5067975363 @default.
- W4300537304 creator A5087365699 @default.
- W4300537304 date "1999-07-07" @default.
- W4300537304 modified "2023-09-27" @default.
- W4300537304 title "Is I Zw 18 a young galaxy?" @default.
- W4300537304 doi "https://doi.org/10.48550/arxiv.astro-ph/9907082" @default.
- W4300537304 hasPublicationYear "1999" @default.
- W4300537304 type Work @default.
- W4300537304 citedByCount "0" @default.
- W4300537304 crossrefType "posted-content" @default.
- W4300537304 hasAuthorship W4300537304A5001911352 @default.
- W4300537304 hasAuthorship W4300537304A5028173176 @default.
- W4300537304 hasAuthorship W4300537304A5031924876 @default.
- W4300537304 hasAuthorship W4300537304A5060495397 @default.
- W4300537304 hasAuthorship W4300537304A5067975363 @default.
- W4300537304 hasAuthorship W4300537304A5087365699 @default.
- W4300537304 hasBestOaLocation W43005373041 @default.
- W4300537304 hasConcept C104317684 @default.
- W4300537304 hasConcept C121332964 @default.
- W4300537304 hasConcept C125857072 @default.
- W4300537304 hasConcept C126691448 @default.
- W4300537304 hasConcept C1276947 @default.
- W4300537304 hasConcept C134122466 @default.
- W4300537304 hasConcept C141231307 @default.
- W4300537304 hasConcept C144024400 @default.
- W4300537304 hasConcept C149923435 @default.
- W4300537304 hasConcept C150846664 @default.
- W4300537304 hasConcept C185592680 @default.
- W4300537304 hasConcept C188525179 @default.
- W4300537304 hasConcept C24389824 @default.
- W4300537304 hasConcept C2778495318 @default.
- W4300537304 hasConcept C2778623024 @default.
- W4300537304 hasConcept C2908647359 @default.
- W4300537304 hasConcept C37119246 @default.
- W4300537304 hasConcept C44870925 @default.
- W4300537304 hasConcept C50425793 @default.
- W4300537304 hasConcept C55493867 @default.
- W4300537304 hasConcept C98444146 @default.
- W4300537304 hasConceptScore W4300537304C104317684 @default.
- W4300537304 hasConceptScore W4300537304C121332964 @default.
- W4300537304 hasConceptScore W4300537304C125857072 @default.
- W4300537304 hasConceptScore W4300537304C126691448 @default.
- W4300537304 hasConceptScore W4300537304C1276947 @default.
- W4300537304 hasConceptScore W4300537304C134122466 @default.
- W4300537304 hasConceptScore W4300537304C141231307 @default.
- W4300537304 hasConceptScore W4300537304C144024400 @default.
- W4300537304 hasConceptScore W4300537304C149923435 @default.
- W4300537304 hasConceptScore W4300537304C150846664 @default.
- W4300537304 hasConceptScore W4300537304C185592680 @default.
- W4300537304 hasConceptScore W4300537304C188525179 @default.
- W4300537304 hasConceptScore W4300537304C24389824 @default.
- W4300537304 hasConceptScore W4300537304C2778495318 @default.
- W4300537304 hasConceptScore W4300537304C2778623024 @default.
- W4300537304 hasConceptScore W4300537304C2908647359 @default.
- W4300537304 hasConceptScore W4300537304C37119246 @default.
- W4300537304 hasConceptScore W4300537304C44870925 @default.
- W4300537304 hasConceptScore W4300537304C50425793 @default.
- W4300537304 hasConceptScore W4300537304C55493867 @default.
- W4300537304 hasConceptScore W4300537304C98444146 @default.
- W4300537304 hasLocation W43005373041 @default.
- W4300537304 hasOpenAccess W4300537304 @default.
- W4300537304 hasPrimaryLocation W43005373041 @default.
- W4300537304 hasRelatedWork W1586513366 @default.
- W4300537304 hasRelatedWork W2020380072 @default.
- W4300537304 hasRelatedWork W2055680474 @default.
- W4300537304 hasRelatedWork W2170021816 @default.
- W4300537304 hasRelatedWork W2966200819 @default.
- W4300537304 hasRelatedWork W3097985418 @default.
- W4300537304 hasRelatedWork W3098997918 @default.
- W4300537304 hasRelatedWork W3105836626 @default.
- W4300537304 hasRelatedWork W4300537304 @default.
- W4300537304 hasRelatedWork W4308191026 @default.
- W4300537304 isParatext "false" @default.
- W4300537304 isRetracted "false" @default.
- W4300537304 workType "article" @default.