Variations in the Σ<sub>SFR</sub>-Σ<sub>mol</sub>-Σ<sub>☆</sub> plane across galactic environments in PHANGS galaxies

Pessa, I.; Schinnerer, E.; Leroy, A. K.; Koch, E. W.; Rosolowsky, E.; Williams, T. G.; Pan, H. -A.; Schruba, A.; Usero, A.; Belfiore, F.; Bigiel, F.; Blanc, G. A.; Chevance, M.; Dale, D.; Emsellem, E.; Gensior, J.; Glover, S. C. O.; Grasha, K.; Groves, B.; Klessen, R. S.; Kreckel, K.; Kruijssen, J. M. D.; Liu, D.; Meidt, S. E.; Pety, J.; Querejeta, M.; Saito, T.; Sanchez-Blazquez, P.; Watkins, E. J.
2022
ASTRONOMY & ASTROPHYSICS
DOI
10.1051/0004-6361/202142832
Aims. There exists some consensus that the stellar mass surface density (Sigma(star)) and molecular gas mass surface density (Sigma(mol)) are the main quantities responsible for locally setting the star formation rate. This regulation is inferred from locally resolved scaling relations between these two quantities and the star formation rate surface density (Sigma(SFR)), which have been extensively studied in a wide variety of works. However, the universality of these relations is debated. Here, we probe the interplay between these three quantities across different galactic environments at a spatial resolution of 150 pc.