From lenticulars to blue compact dwarfs: the stellar mass fraction is regulated by disc gravitational instability

Abstract

The stellar-to-halo mass relation (SHMR) is not only one of the main sources of information we have on the connection between galaxies and their dark matter haloes, but also an important indicator of the performance of galaxy formation models. Here we use one of the largest sample of galaxies with both high-quality rotation curves and near-infrared surface photometry, and perform a detailed comparative analysis of the SHMR. Our analysis shows that there are significant statistical differences between popular forms of the SHMR, and illustrates the predictive power of a new physically motivated scaling relation, which connects the stellar mass fraction ($M_{\star }/M_{\mathrm{h}}$) to the stellar specific angular momentum ($j_{\star }$) and the stellar radial velocity dispersion (${\sigma }_{\star }$) via disc gravitational instability. Making use of such a relation, we demonstrate (i) how challenging it is to reproduce the efficiency of galaxy formation even for state-of-the-art cosmological hydrodynamical simulations, and (ii) that the evolution of the stellar mass fraction is regulated by disc gravitational instability: when $M_{\star }/M_{\mathrm{h}}$ varies, $j_{\star }$ and ${\sigma }_{\star }$ also vary as predicted by our scaling relation, thus erasing the memory of such evolution. This implies that the process of disc gravitational instability is intriguingly uniform across disc galaxies of all morphological types: from lenticulars to blue compact dwarfs. In particular, the cosmic variance of Toomre's $Q$ is 0.2 dex, a universal value for both stars and atomic gas.

MNRAS, in press. Fig. 4, Sect. 4 and the last itemized paragraph of Sect. 5 are new, and demonstrate the importance of our results for the simulation community

References in corpus (14)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• SPARC: Mass Models for 175 Disk Galaxies with Spitzer Photometry and Accurate Rotation Curves
• The stellar mass-halo mass relation of isolated field dwarfs: a critical test of $\Lambda$CDM at the edge of galaxy formation
• LITTLE THINGS in 3D: robust determination of the circular velocity of dwarf irregular galaxies
• The stellar-to-halo mass relations of local galaxies segregates by color
• Disc instabilities and semi-analytic modelling of galaxy formation
• Larson's scaling laws, and the gravitational instability of clumpy discs at high redshift
• Characterizing gravitational instability in turbulent multi-component galactic discs
• Testing gravity with motion of satellites around galaxies: Newtonian gravity against Modified Newtonian Dynamics
• Galaxy sizes and the galaxy-halo connection -- I: the remarkable tightness of the size distributions
• Massive disc galaxies in cosmological hydrodynamical simulations are too dark matter-dominated
• The bivariate gas-stellar mass distributions and the mass functions of early- and late-type galaxies at $z\sim 0$
• Reconstructing the velocity dispersion profiles from the line-of-sight kinematic data in disc galaxies
• Assessing Disk Galaxy Stability through Time

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