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We study the spatially resolved properties of 343 elliptical galaxies withthe MaNGA/SDSS-IV survey. We used the DESI Legacy Imaging Surveys formorphological classification. Based on integrated spectroscopic properties andcolors, we classified seven classes of ellipticals. We inferred the stellar ageand metallicity ($Z$) gradients out to a 1.5 effective radius of classical "redand dead", recently quenched, and blue star-forming ellipticals (CLEs, RQEs,and BSFs), corresponding to 73%, 10%, and 4% of the sample, respectively. Wereconstructed their global and radial histories of star formation and massgrowth. We find the mass- and luminosity-weighted age gradients of CLEs arenearly flat or mildly negative. The respective $Z$ gradients are negative,being flatter as the mass is smaller. The more massive CLEs formed starsearlier and quenched faster than the less massive ones. The CLEs show a weakinside-out growth and a clear inside-out quenching. They finished theirquenching globally 3.8 $\pm$ 1.2 Gyr ago, with quenching time-scales of 3.4$\pm$ 0.8 Gyr. At masses < 10$^{11}$ $M_{\bigodot}$, the age and $Z$ gradientsof the RQEs and BSFs are flatter than those of the CLEs but with largerscatters. They show very weak inside-out growth and quenching, which is slowand even not completed at $z\sim0$ for the BSFs. Instead, the massive RQEs showan outside-in quenching and positive gradients in the luminosity-weighted ageand stellar metallicities. The RQEs of all masses quenched 1.2 $\pm$ 0.9 Gyrago on average. Our results for the CLEs are consistent with a two-phasescenario where their inner parts formed by an early and coeval dissipativecollapse with a consequent burst of star formation and further quenching,whereas the outer parts continued their assembly likely by dry mergers. We alsodiscuss some evolutionary scenarios for the RQE and BSF galaxies.

SDSS-IV MaNGA: global and local stellar population properties of elliptical galaxies