Description
The impact of the void environment on galaxy evolution is a subject of growing interest, yet many questions remain unanswered. The Calar Alto Void Integral Field Treasury surveY (CAVITY) project aims to address this issue from a novel perspective: using both spectroscopic and spatially resolved data through optical integral field spectroscopy (IFS).
We analyze the CAVITY data cubes with the non parametric full spectral fitting algorithm STARLIGHT to obtain their stellar population properties, and measure their emission lines to get their nebular content. We obtain maps of stellar mass, stellar ages, star formation rate (SFR), and specific SFR (sSFR), based on both stellar star formation histories (SFHs) and Hα luminosities. To assess the impact of large-scale structure, we compare our findings with a control sample of galaxies in filaments and walls, matched in stellar mass and morphology, using data from CALIFA, which shares the same observational setup and analysis methods.
Our results indicate that void galaxies evolve more slowly than their counterparts in denser environments, particularly those with intermediate morphologies (e.g., Sa galaxies). Additionally, we find that the outskirts of late-type galaxies are more strongly influenced by the void environment. These findings demonstrate the potential of the CAVITY project to advance our understanding of how large-scale structure shapes galaxy evolution.
