Stellar kinematics in the nuclear regions of nearby LIRGs with VLT-SINFONI. Comparison with gas phases and implications for dynamical mass estimations
arXiv:2104.06790 · doi:10.1051/0004-6361/202039472
Abstract
In this work we use seeing-limited SINFONI H- and K-band spectroscopy to analyse the spatially resolved kinematics of the stellar component in the inner r<1-2 kpc of ten nearby (mean z=0.014) LIRGs. We compare the stellar kinematics with those for different gas phases, and analyse the relative effects of using different tracers when estimating dynamical masses. The stellar velocity and velocity dispersion maps are extracted in both near-IR bands by fitting the continuum emission using pPXF while we use the gas kinematics from previous works. We find that the different gas phases have similar kinematics, whereas the stellar component is rotating with slightly lower velocities (V~0.8V) but in significantly warmer orbits (~2) than the gas phases. These values indicate that stars are rotating in thick discs while the gas phases are confined in dynamically cooler rotating discs. However, these differences do not lead to significant discrepancies between the dynamical mass estimations based on the stellar and gas kinematics. This result suggests that the gas kinematics can be used to estimate M also in z~2 SFGs, a galaxy population that shares many structural and kinematic properties with local LIRGs.
36 pages, 35, accepted for publication in A&A. Abstract abridged due to arXiv requirements
References in corpus (42)
- A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
- Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions
- Measuring the inclination and mass-to-light ratio of axisymmetric galaxies via anisotropic Jeans models of stellar kinematics
- Molecular line emission in NGC1068 imaged with ALMA. I An AGN-driven outflow in the dense molecular gas
- Mid-Infrared Spectral Diagnosis of Submillimeter Galaxies
- Strongly baryon-dominated disk galaxies at the peak of galaxy formation ten billion years ago
- The SAURON project - VII. Integral-field absorption and emission-line kinematics of 24 spiral galaxy bulges
- Ionized gas outflows and global kinematics of low-z luminous star forming galaxies
- Near-Infrared and Star-forming properties of Local Luminous Infrared Galaxies
- The Structure and Dynamical Evolution of the Stellar Disk of a Simulated Milky Way-Mass Galaxy
- Stellar kinematics across the Hubble sequence in the CALIFA survey: General properties and aperture corrections
- The KMOS^3D Survey: data release and final survey paper
- The central parsecs of Centaurus A: High Excitation Gas, a Molecular Disk, and the Mass of the Black Hole
- Dynamical properties of Ultraluminous Infrared Galaxies. II. Traces of dynamical evolution and end products of local ultraluminous mergers
- A SINFONI view of Galaxy Centers: Morphology and Kinematics of five Nuclear Star Formation Rings
- Mid-Infrared Properties of Luminous Infrared Galaxies II: Probing the Dust and Gas Physics of the GOALS Sample
- Secular- and merger-built bulges in barred galaxies
- PCA Tomography: how to extract information from datacubes
- A Luminous Infrared Merger with Two Bipolar Molecular Outflows: ALMA and SMA Observations of NGC 3256
- Obscuration in AGNs: near-infrared luminosity relations and dust colors
- A clear age-velocity dispersion correlation in Andromeda's stellar disk
- VLT-VIMOS integral field spectroscopy of luminous and ultraluminous infrared galaxies. I. The sample and first results
- On the Global Mass Distribution in Disk Galaxies
- Understanding the two-dimensional ionization structure in luminous infrared galaxies. A near-IR integral field spectroscopy perspective
- Spatially resolved kinematics, galactic wind, and quenching of star formation in the luminous infrared galaxy IRAS F11506-3851
- VLT-SINFONI integral field spectroscopy of low-z luminous and ultraluminous infrared galaxies I. Atlas of the 2D gas structure
- High-velocity extended molecular outflow in the star-formation dominated luminous infrared galaxy ESO 320-G030
- AGN feedback in a galaxy merger: Multi-phase, galaxy-scale outflows including a fast molecular gas blob ~6 kpc away from IRAS F08572+3915
- Outflow of hot and cold molecular gas from the obscured secondary nucleus of NGC3256: closing in on feedback physics
- A treatment procedure for VLT/SINFONI data cubes: application to NGC 5643
- Star-forming Clumps in Local Luminous Infrared Galaxies
- Kinematic classifications of local interacting galaxies: implications for the merger/disk classifications at high-z
- Star-formation histories of local luminous infrared galaxies
- NGC 1566: analysis of the nuclear region from optical and near-infrared Integral Field Unit spectroscopy
- The SAMI Galaxy Survey: mass-kinematics scaling relations
- Star formation and gas flows in the centre of the NUGA galaxy NGC 1808 observed with SINFONI
- Probing the Circumnuclear Stellar Populations of Starburst Galaxies in the Near-infrared
- The Fine Line Between Normal and Starburst Galaxies
- Outflows of hot molecular gas in ultra-luminous infra-red galaxies mapped with VLT-SINFONI
- Stellar kinematics in the nuclear regions of nearby LIRGs with VLT-SINFONI. Comparison with gas phases and implications for dynamical mass estimations
- MUSE-AO view of the starburst-AGN connection: NGC 7130
- Kinematics of the ionized and molecular gas in nearby luminous infrared interacting galaxies
Cited by in corpus (8)
- The PUMA project. III. Incidence and properties of ionised gas disks in ULIRGs, associated velocity dispersion and its dependence on starburstiness
- Compact molecular gas emission in local LIRGs among low- and high-z galaxies
- Stellar kinematics in the nuclear regions of nearby LIRGs with VLT-SINFONI. Comparison with gas phases and implications for dynamical mass estimations
- JWST/NIRSpec insights into the circumnuclear region of Arp 220: A detailed kinematic study
- Unravelling the Dust Attenuation Scaling Relations and their Evolution
- LEGA-C: analysis of dynamical masses from ionized gas and stellar kinematics at z~0.8
- Investigation of Stellar Kinematics and Ionized gas Outflows in Local (U)LIRGs
- Detecting Intermediate-Mass Black Holes out to 20 Mpc with ELT/HARMONI: The Case of FCC 119