This paper uses an alternative way to measure the star formation rate SFR vs stellar mass M* (star-forming sequence - SFS) at cosmic noon by using nearly dust-insensitive Pa-alpha emission line measurements (for SFR) and rest-frame H-band imaging (for stellar mass). They use a sample of 609 galaxies using the NIRCam/grism from the FRESCO survey. The main finding is that above log M* ~ 9.…

The paper presents JWST/NIRSpec IFU observations of the sub-millimeter galaxy GN20, targeting rest-frame optical emission. Combined spectral analysis and dynamical modelling reveal an asymmetric and clumpy morphology of Hα line emission, whose large-scale kinematics is compatible with a turbulent (σ~90 km/s), rotating disk (vrot ~ 500 km/s), consistently with previous studies on molecular and ionised gas kinematics. Also, the authors find clear evidence for non-circular motions in Hα kinematics,…

This paper presents the study on the evolution of galaxy SFR and ΣSFR from redshift z ∼ 4 to z ∼ 10, using a statistical sample of 230 galaxies observed with JWST in the GLASS and CEERS surveys. They derive the ΣSFR 'Main Sequence' for the first time at z > 4. They also find: ΣSFR mildly increases in the redshift range studied (see fig below), consistent with predictions from various semi-analytic models of galaxy evolution The star-forming 'Main Sequence' relation persists up to redshift ∼ 10,…