Revisiting the stellar mass -- angular momentum -- morphology relation: extension to higher bulge fraction, and the effect of bulge type

Abstract

We present the relation between stellar specific angular momentum $j_{\ast }$, stellar mass $M_{\ast }$, and bulge-to-total light ratio $\beta$ for THINGS, CALIFA and Romanowsky \& Fall datasets, exploring the existence of a fundamental plane between these parameters as first suggested by Obreschkow \& Glazebrook. Our best-fit $M_{\ast }-j_{\ast }$ relation yields a slope of $\alpha =1.03\pm 0.11$ with a trivariate fit including $\beta$. When ignoring the effect of $\beta$, the exponent $\alpha =0.56\pm 0.06$ is consistent with $\alpha =2/3$ predicted for dark matter halos. There is a linear $\beta -j_{\ast }/M_{\ast }$ relation for $\beta \lesssim 0.4$, exhibiting a general trend of increasing $\beta$ with decreasing $j_{\ast }/M_{\ast }$. Galaxies with $\beta \gtrsim 0.4$ have higher $j_{\ast }$ than predicted by the relation. Pseudobulge galaxies have preferentially lower $\beta$ for a given $j_{\ast }/M_{\ast }$ than galaxies that contain classical bulges. Pseudobulge galaxies follow a well-defined track in $\beta -j_{\ast }/M_{\ast }$ space, consistent with Obreschkow \& Glazebrook, while galaxies with classical bulges do not. These results are consistent with the hypothesis that while growth in either bulge type is linked to a decrease in $j_{\ast }/M_{\ast }$, the mechanisms that build pseudobulges seem to be less efficient at increasing bulge mass per decrease in specific angular momentum than those that build classical bulges.

Accepted to ApJ. 10 pages, 3 figures, 2 tables

References in corpus (16)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• The SAMI Galaxy Survey: instrument specification and target selection
• The Structure of Classical Bulges And Pseudobulges: The Link Between Pseudobulges And Sersic Index
• CALIFA: a diameter-selected sample for an integral field spectroscopy galaxy survey
• CALIFA, the Calar Alto Legacy Integral Field Area survey. II. First public data release
• The black hole mass -- stellar velocity dispersion correlation: bulges versus pseudobulges
• The SAMI Galaxy Survey: the link between angular momentum and optical morphology
• The SAMI Galaxy Survey: Early Data Release
• Stellar kinematics across the Hubble sequence in the CALIFA survey: General properties and aperture corrections
• Quantifying the impact of mergers on the angular momentum of simulated galaxies
• Two-dimensional multi-component photometric decomposition of CALIFA galaxies
• Stellar mass estimates in early-type galaxies: procedures, uncertainties and models dependence
• The SAMI Galaxy Survey: Cubism and covariance, putting round pegs into square holes
• The Formation of S0 Galaxies with Counter-Rotating Neutral and Molecular Hydrogen
• The Impact of Mergers on the Survival and Abundance of Disk-Dominated Galaxies
• On The Survival and Abundance of Disk-dominated Galaxies

Cited by in corpus (24)

• The specific angular momentum of disc galaxies and its connection with galaxy morphology, bar structure and disc gravitational instability
• Angular Momentum and Galaxy Formation Revisited: Scaling Relations for Disks and Bulges
• Connecting and dissecting galaxies' angular momenta and neutral gas in a hierarchical universe: cue DARK SAGE
• Kinematics of Simulated Galaxies II: Probing the Stellar Kinematics of Galaxies out to Large Radii
• Angular momentum and local gravitational instability in galaxy discs: does $Q$ correlate with $j$ or $M$?
• The Intrinsic Scatter of Galaxy Scaling Relations
• The influence of angular momentum and environment on the HI gas of late-type galaxies
• Morphological evolution and galactic sizes in the L-Galaxies SA model
• Dark-ages Reionization and Galaxy Formation Simulation -- XVII. Sizes, angular momenta and morphologies of high redshift galaxies
• SH$\alpha$DE: Survey description and mass-kinematics scaling relations for dwarf galaxies
• AGN Feedback Through Multiple Jet Cycles in the Seyfert Galaxy NGC 2639
• Angular momentum of $z\sim 1.5$ galaxies and their local analogues with adaptive optics
• The MUSE Hubble Ultra Deep Field Survey XVI. The angular momentum of low-mass star-forming galaxies. A cautionary tale and insights from TNG50
• The SAMI Galaxy Survey: galaxy spin is more strongly correlated with stellar population age than mass or environment
• The Physical Origin of the Mass-Size Relation and Its Scatter of Disk Galaxies
• WALLABY Pre-Pilot Survey: The effects of angular momentum and environment on the HI gas and star formation properties of galaxies in the Eridanus supergroup
• Angular momentum evolution of bulge stars in disc galaxies in NIHAO
• Dynamic equilibrium sets atomic content of galaxies across cosmic time
• Using angular momentum maps to detect kinematically distinct galactic components
• Stellar angular momentum distribution linked to galaxy morphology
• A Shallow Slope for the Stellar Mass--Angular Momentum Relation of Star-Forming Galaxies at $1.5<z<2.5$
• Exploring the Angular Momentum -- Atomic Gas Content Connection with EAGLE and IllustrisTNG
• Angular momentum and morphological sequence of massive galaxies through Dark Sage
• xGASS: characterizing the slope and scatter of the stellar mass - angular momentum relation for nearby galaxies