HST photometry reveals radial color gradients in two ETGs that match predictions from the multiple-population scenario linking the UV upturn to second-generation stars from dissolved globular clusters.
NBursts: Simultaneous Extraction of Internal Kinematics and Parametrized SFH from Integrated Light Spectra
1 Pith paper cite this work. Polarity classification is still indexing.
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abstract
We present a novel approach for simultaneous extraction of stellar population parameters and internal kinematics from the spectra integrated along a line of sight. We fit a template spectrum into an observed one in a pixel space using a non-linear $\chi^2$ minimization in the multidimensional parameter space, including characteristics of the line-of-sight velocity distribution (LOSVD) and parametrized star formation history (SFH). Our technique has been applied to IFU and multi-object spectroscopy of low-luminosity early type galaxies.
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A Colour-colour Fingerprint Links the UV Upturn in Early-type Galaxies to Second-generation Stars from Dissolved Globular Clusters
HST photometry reveals radial color gradients in two ETGs that match predictions from the multiple-population scenario linking the UV upturn to second-generation stars from dissolved globular clusters.