The KMOS$^{\rm 3D}$ Survey: Investigating the Origin of the Elevated Electron Densities in Star-Forming Galaxies at $1\lesssim{z}\lesssim{3}$

no code implementations • 18 Dec 2020 • Rebecca L. Davies, N. M. Förster Schreiber, R. Genzel, T. T. Shimizu, R. I. Davies, A. Schruba, L. J. Tacconi, H. Übler, E. Wisnioski, S. Wuyts, M. Fossati, R. Herrera-Camus, D. Lutz, J. T. Mendel, T. Naab, S. H. Price, A. Renzini, D. Wilman, A. Beifiori, S. Belli, A. Burkert, J. Chan, A. Contursi, M. Fabricius, M. M. Lee, R. P. Saglia, A. Sternberg

We investigate what drives the redshift evolution of the typical electron density ($n_e$) in star-forming galaxies, using a sample of 140 galaxies drawn primarily from KMOS$^{\rm 3D}$ ($0. 6\lesssim{z}\lesssim{2. 6}$) and 471 galaxies from SAMI ($z<0. 113$).

Astrophysics of Galaxies

The EMPIRE Survey: Systematic Variations in the Dense Gas Fraction and Star Formation Efficiency from Full-Disk Mapping of M51

no code implementations • 18 Apr 2016 • F. Bigiel, A. K. Leroy, M. J. Jimenez-Donaire, J. Pety, A. Usero, D. Cormier, A. Bolatto, S. Garcia-Burillo, D. Colombo, M. Gonzalez-Garcia, A. Hughes, A. Kepley, C. Kramer, K. Sandstrom, E. Schinnerer, A. Schruba, K. Schuster, N. Tomicic, L. Zschaechner

The sense of the dependence is that high surface density, high molecular gas fraction regions of the galaxy show high dense gas fractions and low dense gas star formation efficiencies.

Astrophysics of Galaxies