We study the significance of major-merger-driven star formation in the early Universe, by quantifying the contribution of this process to the total star formation budget in 80 massive (M∗ > 10 10 M⊙) galaxies at z ≃ 2. Employing visually-classified morphologies from rest-frame V -band HST imaging, we find that 55% of the star formation budget is hosted by non-interacting late-types, with 27% in...

Abstract. Isotope mass balance models have undergone significant developments in the last decade, demonstrating their utility for assessing spatial and temporal variability hydrological processes revealing value baseline assessment remote and/or flood-affected settings where direct measurement of surface water fluxes to lakes (i.e. stream gauging) are difficult perform. In this study, we demons...

The budget of atmospheric CO2 is widely studied using records of temporal and spatial variations of concentrations, d C and dO values. However, the number and diversity of sources and sinks prevents these alone from fully constraining the budget. Molecules containing two rare isotopes can serve as additional tracers and potentially provide additional, independent, constraints. We present data d...

a r t i c l e i n f o a b s t r a c t The distribution of the cosmogenic radionuclide 7 Be (t 1/2 = 53d) in the surface ocean has previously been used to estimate upwelling velocity in the open ocean. However, the loss of 7 Be to particle export has limited this approach in high particle density environments like the continental margins. In this study, we combine a mass balance of 7 Be with a 2...