A duality in the origin of bulges and spheroidal galaxies.

Studying the resolved stellar populations of the different structural components which build massive galaxies directly unveils their assembly history. We aim at characterizing the stellar population properties of a representative sample of bulges and pure spheroids in massive galaxies ($M_{\star}>10^{10}$ M$_{\odot}$) in the GOODS-N field. We take advantage of the spectral and spatial information provided by SHARDS and HST data to perform the multi-image spectro-photometrical decoupling of the galaxy light. We derive the spectral energy distribution separately for bulges and disks in the redshift range $0.14

Keywords:

• Bulge
• Galaxy
• star
• Spectral energy distribution
• Star formation
• Spectral resolution
• Physics
• Astrophysics
• Stellar population
• Redshift

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