Angular Momentum across the Hubble sequence from the CALIFA survey

Abstract

We investigate the stellar angular momentum of galaxies across the Hubble sequence from the CALIFA survey. The distribution of CALIFA elliptical and lenticular galaxies in the ${\lambda }_{\mathrm{Re}}-{\epsilon }_{\mathrm{e}}$ diagram is consistent with that shown by the Atlas${}^{3D}$ survey. Our data, however, show that the location of spiral galaxies in this diagram is significantly different. We have found two families of spiral galaxies with particularly peculiar properties: (a) spiral galaxies with much higher ${\lambda }_{\mathrm{Re}}$ values than any elliptical and lenticular galaxy; (b) low-mass spiral galaxies with observed ${\lambda }_{\mathrm{Re}}$ values much lower than expected for their apparent flattening. We use these two families of objects to argue that (1) fading alone cannot explain the transformation of spiral to lenticular galaxies, and (2) that those low-mass spiral galaxies are in fact dark matter dominated, which explains the unusually low angular momentum.

4 pages, 3 figures; to appear in the proceedings of the IAUs311 "Galaxy Masses as Constraints of Formation Models" held in July 2014 in Oxford (UK)

References in corpus (7)

• The Atlas3D project -- I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria
• The ATLAS3D project - III. A census of the stellar angular momentum within the effective radius of early-type galaxies: unveiling the distribution of Fast and Slow Rotators
• A systematic variation of the stellar initial mass function in early-type galaxies
• Structural Properties of Pseudo-Bulges, Classical Bulges and Elliptical Galaxies: an SDSS Perspective
• SPIDER VIII - Constraints on the Stellar Initial Mass Function of Early-type Galaxies from a Variety of Spectral Features
• Reconstructing the Subsurface Three-Dimensional Magnetic Structure of A Solar Active Region Using SDO/HMI Observations
• A direct measurement of the baryonic mass function of galaxies & implications for the galactic baryon fraction

Cited by in corpus (17)

• CALIFA, the Calar Alto Legacy Integral Field Area survey: IV. Third Public data release
• The SAMI Galaxy Survey: the link between angular momentum and optical morphology
• SDSS-IV MaNGA: Stellar angular momentum of about 2300 galaxies: unveiling the bimodality of massive galaxy properties
• Stellar kinematics across the Hubble sequence in the CALIFA survey: General properties and aperture corrections
• Characterization of galactic bars from 3.6 $\mu$m S${}^4$G imaging
• SDSS-IV MaNGA: The Formation Sequence of S0 Galaxies
• The CALIFA view on stellar angular momentum across the Hubble sequence
• The origin and properties of massive prolate galaxies in the Illustris simulation
• S0 galaxies are faded spirals: clues from their angular momentum content
• The SAMI Galaxy Survey: bulge and disk stellar population properties in cluster galaxies
• On the accretion of a new group of galaxies onto Virgo: I. Internal kinematics of nine in-falling dEs
• From Peculiar Morphologies to Hubble-type Spirals: The relation between galaxy dynamics and morphology in star-forming galaxies at z~1.5
• Nuclear angular momentum of early-type galaxies hosting nuclear star clusters
• The space density distribution of galaxies in the absolute magnitude - rotation velocity plane: a volume-complete Tully-Fisher relation from CALIFA stellar kinematics
• The $H_2$ angular momentum -- mass relation of local disc galaxies
• Creating lenticular galaxies with major mergers
• Photometric and Kinematic Misalignments and Their Evolution Among Fast and Slow Rotators in the Illustris Simulation