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Galaxy environment has been shown to play an important role in transforminglate-type, star-forming galaxies to quiescent spheroids. This transformation isexpected to be more severe for low-mass galaxies (M < $10^{10}$ $M_\odot$) indense galaxy groups and clusters, mostly due to the influence of their pasthost halos (also known as pre-processing) and their present-day environments.For the first time, in this study, we investigate a sample of nine early-typedwarf galaxies (dEs) that were accreted as a likely bound group onto the Virgogalaxy cluster about 2-3 Gyr ago. Considering this special condition, thesenine dEs may provide a test bed for distinguishing between the influence of theVirgo galaxy cluster and the effects of the previous host halo on their currentproperties. Specifically, we use VLT/MUSE integral-field unit spectra to derivetheir kinematics and specific angular momentum ($\lambda_{R}$) profiles. Weobserve a spread in the $\lambda_{R}$ profiles of our sample dEs, finding thatthe $\lambda_{R}$ profiles of half of them are as high as those of low-massfield galaxies. The remaining dEs exhibit $\lambda_{R}$ profiles as low asthose of Virgo dEs that were likely accreted longer ago. Moreover, we detectnebular emission in one dE with a gas velocity offset suggesting ongoing gasstripping in Virgo. We suggest that the low-$\lambda_{R}$ dEs in our samplewere processed by their previous host halo, prior to their infall to Virgo, andthat the high-$\lambda_{R}$ dEs may be experiencing ram pressure stripping inVirgo.

On the accretion of a new group of galaxies onto Virgo: I. Internal kinematics of nine in-falling dEs