Matches in SemOpenAlex for { <https://semopenalex.org/work/W4384133704> ?p ?o ?g. }
- W4384133704 endingPage "16" @default.
- W4384133704 startingPage "16" @default.
- W4384133704 abstract "Abstract This article reports a sample of 1830 strong [O iii ] λ 5007 emission-line compact galaxies discovered with the LAMOST spectroscopic survey and the photometric catalog of the Sloan Digital Sky Survey. We newly identify 402 spectra of 346 strong [O iii ] λ 5007 emission-line compact galaxies by finding compact isolated point sources. Combined with the samples in our previous work, this returns a sample of 1830 unique strong [O iii ] λ 5007 emission-line compact galaxies with 2033 spectra of z ≤ 0.53. For the sources with 2 σ [O iii ] λ 4363 detections, we calculate the gas-phase metallicity with the direct- T e method, and verify that the strong-line metallicity diagnostics calibrated with the direct- T e method also applies to this sample. The strong [O iii ] λ 5007 emission-line compact galaxies fall below several T e -calibrated mass–metallicity relations. The N/O measurements of the strong [O iii ] λ 5007 emission-line compact galaxies mainly locate at a plateau at low metallicity, indicating the product of primary nucleosynthesis. The Ne3O2 and O32 relation follows a tight linear relation with no redshift evolution. The Ne3O2 anticorrelates with the stellar mass, and at fixed stellar mass the Ne3O2 increases with the redshift. Eight sources with asymmetric [O iii ] λ 5007 emission-line profiles have been identified, however with no [O iii ] λ 4363 detection, which proves the rich metal content and complex ionized-gas kinematics within the galaxies. Higher-resolution spectroscopy will be necessary to identify the ionized-gas components in detail." @default.
- W4384133704 created "2023-07-14" @default.
- W4384133704 creator A5006467926 @default.
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- W4384133704 creator A5029391538 @default.
- W4384133704 creator A5036485122 @default.
- W4384133704 creator A5039594990 @default.
- W4384133704 creator A5064809380 @default.
- W4384133704 creator A5088605275 @default.
- W4384133704 date "2023-07-01" @default.
- W4384133704 modified "2023-10-16" @default.
- W4384133704 title "Ionized-gas Metallicity of the Strong [O iii]λ5007 Emission-line Compact Galaxies in the LAMOST Survey" @default.
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