My research interests are focused on the study of the formation and evolution of galaxies.
The relative importance of secular evolution over nurture is not yet clear.
To understand the effects of the environment on the evolution of galaxies, it is necessary to have a reference sample where the effects of the environment are minimised and quantified.
Nature vs Nurture
Due to the large uncertainty introduced by projection effects in the construction of catalogues of galaxies in relation to their environments, redshift surveys are required to distinguish small, faint, interacting satellites from a background projected galaxy population, which leads to a more comprehensive 3D picture of the surroundings.
We used spectroscopic data from the SDSS to automatically and homogeneously compile catalogues of isolated galaxies, isolated pairs, and isolated triplets in the local Universe without being biased by projected neighbours.
The cycle of gas in galaxies
The aim of my present work is to unveil properties of galaxies evolving secularly, in an equilibrium between gas inflow, outflow and star formation. To do this I investigate the morphology-density relation and relations between stellar mass, star formation rate, and metallicity, with minimized contamination due to the effect of the environment.
To identify and quantify the external influences which may play a role in the galaxy formation and evolution, we study the effects of the local and large scale environments on galaxy properties.
MaNGA and galaxy pairs
Galaxy mergers are one of the fundamental processes driving the galaxy evolution. In a simple evolution model, massive galaxies are assembled through accretion of mergers of smaller galaxies.
MaNGA (Mapping Nearby Galaxies at APO) will obtain resolved spectroscopy (IFS) for 10,000 nearby galaxies. IFS is a powerful resource for understanding the physical processes that drive the star formation and outflows during mergers.
As a SDSS-IV postdoc, I'm involved in the study of the largest IFU sample for pair/interacting galaxies in the nearby Universe. Our major science goal is understand interaction-triggered star formation, merger-AGN association, quenching, and gas accretion during mergers.