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Browsing by Author "Arimoto, N"
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Gradients of absorption-line strengths in elliptical galaxies
Arimoto, N; Kobayashi, Chiaki (1999-12-20)We have restudied line-strength gradients of 80 elliptical galaxies. Typical metallicity gradients of elliptical galaxies are Delta[Fe/H]/Delta log r similar or equal to -0.3, which is flatter than the gradients predicted ... -
Metallicity distributions of elliptical galaxies and globular cluster systems - Absorption line strength gradients in elliptical galaxies
Arimoto, N; Kobayashi, Chiaki (1999)Gradients of absorption line indices are studied and mean stellar metallicities are estimated for 46 elliptical galaxies. The mean stellar metallicities range from [[Fe/H]] similar or equal to -0.8 to +0.2 and ellipticals ... -
Origin of color gradients in elliptical galaxies
Tamura, N; Kobayashi, Chiaki; Arimoto, N; Ohta, K; Kodama, Tadayuki (2000-05)The origin of color gradients in elliptical galaxies is examined by comparing model gradients with those observed in the Hubble Deep Field. The models are constructed so as to reproduce color gradients in local elliptical ...