STAR FORMATION BIMODALITY IN EARLY-TYPE GALAXIES
作者： P. Temi , S. Im , A. Amblard , M. Fanelli , L. Riguccini
DOI: 10.1088/0004-637X/783/2/135
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摘要: We compute the properties of a sample 221 local, early-type galaxies with spectral energy distribution (SED) modeling software, CIGALEMC. Concentrating on star-forming (SF) activity and dust contents, we derive parameters such as specific star formation rate (sSFR), luminosity, mass, temperature. In our sample, 52% is composed elliptical (E) 48% lenticular (S0) galaxies. find larger proportion S0 among large sSFR emission. The stronger confirmed by masses. investigate relative active galactic nuclei (AGNs) SF in using spectroscopic Sloan Digital Sky Survey data near-infrared selection techniques, AGN-dominated than E one. This could corroborate scenario where blue evolve into red ellipticals passing through an AGN period while quenching its formation. Finally, good agreement comparing estimates color indicators.
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