Science T2: Star formation rates from emission-line galaxies

The star formation rate (SFR) is a fundamental property to understand the on-going mass assembly of galaxies and the mechanisms regulating the inflow/outflow of gas at different stellar masses and environments. There are several SFR tracers , such as the UV luminosity, the nebular emission in the optical, or the total infrared emission. We have direct access to the Hα, [NII], Hβ, [OII] and [OIII] emission lines at z < 0.4 with J-PAS, and to the Hα, [NII], and [OII] emission lines at z < 0.015 with J-PLUS.

The J-PLUS survey covers the Hα + [NII] emission with its J0660 narrow-band filter, and the [OII] emission with its J0373 narrow-band filter. Vilella-Rojo+15 demonstrate that we can recover unbiased Hα fluxes with ~15% uncertainty using J-PLUS data.

View details »

The J-PLUS techniques will be expanded to deal with J-PAS data.

View details »