Stellar Population Synthesis with Distinct Kinematics: Multi-Age Asymmetric Drift in SDSS-IV MaNGA Galaxies

Abstract

We present the first asymmetric drift (AD) measurements for unresolved stellar populations of different characteristic ages above and below 1.5 Gyr. These measurements sample the age-velocity relation (AVR) in galaxy disks. In this first paper we develop two efficient algorithms to extract AD on a spaxel-by-spaxel basis from optical integral-field spectroscopic (IFS) data-cubes. The algorithms apply different spectral templates, one using simple stellar populations and the other a stellar library; their comparison allows us to assess systematic errors in derived multi-component velocities, such as template-mismatch. We test algorithm reliability using mock spectra and Monte Carlo Markov Chains on real data from the MaNGA survey in SDSS-IV. We quantify random and systematic errors in AD as a function of signal-to-noise and stellar population properties with the aim of applying this technique to large subsets of the MaNGA galaxy sample. As a demonstration of our methods, we apply them to an initial sample of seven galaxies with comparable stellar mass and color to the Milky Way. We find a wide range of distinct AD radial profiles for young and old stellar populations.

arXiv comment21 pages, 4 appendices, Accepted for publication in APJ

References in corpus (74)

• emcee: The MCMC Hammer
• Stellar population synthesis at the resolution of 2003
• On the variation of the Initial Mass Function
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
• The Geneva-Copenhagen survey of the Solar neighbourhood: Ages, metallicities, and kinematic properties of 14,000 F and G dwarfs
• A large stellar evolution database for population synthesis studies. I. Scaled solar models and isochrones
• Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions
• CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation
• The SINS survey: SINFONI Integral Field Spectroscopy of z ~ 2 Star-forming Galaxies
• The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey
• An updated MILES stellar library and stellar population models
• The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
• The Indo-U.S. Library of Coude Feed Stellar Spectra
• The KMOS^3D Survey: design, first results, and the evolution of galaxy kinematics from 0.7<z<2.7
• Simulations of Galaxy Formation in a Lambda CDM Universe II: The Fine Structure of Simulated Galactic Disks
• The SAURON project -- X. The orbital anisotropy of elliptical and lenticular galaxies: revisiting the (V/sigma,epsilon) diagram with integral-field stellar kinematics
• The Sydney-AAO Multi-object Integral field spectrograph (SAMI)
• Improved background subtraction for the Sloan Digital Sky Survey images
• The MaNGA Integral Field Unit Fiber Feed System for the Sloan 2.5 m Telescope
• The Data Reduction Pipeline for the SDSS-IV MaNGA IFU Galaxy Survey
• Quantifying the Fragility of Galactic Disks in Minor Mergers
• The Emergence of the Thick Disk in a CDM Universe
• The Geneva-Copenhagen Survey of the Solar neighbourhood II. New uvby calibrations and rediscussion of stellar ages, the G dwarf problem, age-metallicity diagram, and heating mechanisms of the disk
• The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations
• The thick disks of spiral galaxies as relics from gas-rich, turbulent, clumpy disks at high redshift
• SDSS IV MaNGA - Spatially resolved diagnostic diagrams: A proof that many galaxies are LIERs
• SDSS-IV MaNGA IFS Galaxy Survey --- Survey Design, Execution, and Initial Data Quality
• The Data Analysis Pipeline for the SDSS-IV MaNGA IFU Galaxy Survey: Overview
• The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA Derived Quantities, Data Visualization Tools and Stellar Library
• Empirical calibration of the near-IR Ca II triplet - I. The stellar library and index definition
• The CALIFA survey across the Hubble sequence: Spatially resolved stellar population properties in galaxies
• MIUSCAT: extended MILES spectral coverage. I. Stellar populations synthesis models
• Kinematics and history of the solar neighbourhood revisited
• Inside Out and Upside Down: Tracing the Assembly of a Simulated Disk Galaxy Using Mono-Age Stellar Populations
• SDSS-IV/MaNGA: Spectrophotometric Calibration Technique
• The Atlas3D project - XIV. The extent and kinematics of molecular gas in early-type galaxies
• The Data Analysis Pipeline for the SDSS-IV MaNGA IFU Galaxy Survey: Emission-Line Modeling
• Stellar Population gradients in galaxy discs from the CALIFA survey
• A Survey of Galaxy Kinematics to z ~ 1 in the TKRS/GOODS-N Field. I. Rotation and Dispersion Properties
• Integral Field Spectroscopy of High-Redshift Star Forming Galaxies with Laser Guided Adaptive Optics: Evidence for Dispersion-Dominated Kinematics
• SDSS-IV MaStar -- A Large and Comprehensive Empirical Stellar Spectral Library: First Release
• Evolving Gravitationally Unstable Disks Over Cosmic Time: Implications For Thick Disk Formation
• SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies
• Re-visiting the relations: Galactic thin disc age-velocity dispersion relation
• A Study of Edge-On Galaxies with the Hubble Space Telescope's Advanced Camera for Surveys. II. Vertical distribution of the resolved stellar population
• Heating of Galactic Disks by Infalling Satellites
• Dissecting simulated disc galaxies II: the age-velocity relation
• The Fornax 3D project: unveiling the thick disk origin in FCC 170: signs of accretion?
• Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
• The EDGE-CALIFA Survey: Molecular and Ionized Gas Kinematics in Nearby Galaxies
• Dating the formation of the counter-rotating stellar disc in the spiral galaxy NGC 5719 by disentangling its stellar populations
• A clear age-velocity dispersion correlation in Andromeda's stellar disk
• Disc Heating: Comparing the Milky Way with Cosmological Simulations
• Pressure Support in Galaxy Disks: Impact on Rotation Curves and Dark Matter Density Profiles
• Combining Stellar Populations with Orbit-Superposition Dynamical Modelling - the Formation History of the Lenticular Galaxy NGC 3115
• Unveiling the Milky Way: A New Technique for Determining the Optical Color and Luminosity of our Galaxy
• Virgo Cluster and field dwarf ellipticals in 3D: I. On the variety of stellar kinematic and line-strength properties
• Untangling galaxy components: full spectral bulge-disc decomposition
• The kinematic identification of a thick stellar disc in M31
• Disentangling the stellar populations in the counter-rotating disc galaxy NGC 4550
• Properties of simulated Milky Way-mass galaxies in loose group and field environments
• The DiskMass Survey. IV. The Dark-Matter-Dominated Galaxy UGC 463
• The DiskMass Survey. X. Radio synthesis imaging of spiral galaxies
• The MUSE Atlas of Disks (MAD): Ionized gas kinematic maps and an application to Diffuse Ionized Gas
• A unified model for age-velocity dispersion relations in Local Group galaxies: Disentangling ISM turbulence and latent dynamical heating
• Does the Milky Way Obey Spiral Galaxy Scaling Relations?
• Dark satellites and the morphology of dwarf galaxies
• Parametrising Star Formation Histories
• The imprint of satellite accretion on the chemical and dynamical properties of disc galaxies
• Asymmetric Drift in the Andromeda Galaxy (M31) as a Function of Stellar Age
• A Precise Benchmark for Cluster Scaling Relations: Fundamental Plane, Mass Plane and IMF in the Coma Cluster from Dynamical Models
• Modelling galactic spectra: II - Simultaneous study of stellar dynamics and stellar mix in NGC3258

Cited by in corpus (11)

• Full spectrum fitting with photometry in pPXF: stellar population versus dynamical masses, non-parametric star formation history and metallicity for 3200 LEGA-C galaxies at redshift z~0.8
• The PHANGS-MUSE survey -- Probing the chemo-dynamical evolution of disc galaxies
• SDSS-IV MaNGA: Modeling the Spectral Line Spread Function to Sub-Percent Accuracy
• Applying the Tremaine-Weinberg Method to Nearby Galaxies: Stellar Mass-Based Pattern Speeds, and Comparisons with ISM Kinematics
• The SAMI Galaxy Survey: the difference between ionised gas and stellar velocity dispersions
• Exploring stellar and ionized gas non--circular motions in barred galaxies with MUSE
• MaNGA DynPop. VII. A Unified Bulge-Disk-Halo Model for Explaining Diversity in Circular Velocity Curves of 6000 Spiral and Early-Type Galaxies
• A Shallow Slope for the Stellar Mass--Angular Momentum Relation of Star-Forming Galaxies at $1.5<z<2.5$
• The SAMI Survey: Evidence for dynamical coupling of ionised gas and young stellar populations
• The MAGPI Survey: the subtle role of environment and not-so-subtle impact of generations of stars on galaxy dynamics
• From gas to stars: MUSEings on the internal evolution of IC 1613