Red thick disks of nearby galaxies

Abstract

Edge on systems reveal the properties of disk galaxies as a function of height, z, above the plane. Four local edge-on galaxies, that are close enough to have been resolved into stars by the Hubble Space Telescope, show thick disks, composed of a red stellar population, which is old and relatively metal rich. Color gradients, d(V-I)/dz, are zero or slightly positive. Favored models may have an explicit thick disk formation phase.

References in corpus (14)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
• The New Galaxy: Signatures of its Formation
• Simulations of Galaxy Formation in a Lambda CDM Universe II: The Fine Structure of Simulated Galactic Disks
• The Emergence of the Thick Disk in a CDM Universe
• Distances to Nearby Galaxies in Sculptor
• A Structural and Dynamical Study of Late-Type, Edge-On Galaxies: II. Vertical Color Gradients and the Detection of Ubiquitous Thick Disks
• A step toward the calibration of the RGB Tip as a Standard Candle
• The Halo Stars in NGC 5128. III: An Inner-Halo Field and the Metallicity Distribution
• The Formation of Dust Lanes: Implications for Galaxy Evolution
• Interpreting Debris from Satellite Disruption In External Galaxies
• The Extraordinary `Superthin' Spiral Galaxy UGC7321. I. Disk Color Gradients and Global Properties from Multiwavelength Observations
• Disk Formation In Hierarchical Hydrodynamical Simulations: A Way Out Of The Angular Momentum Catastrophe
• Mass-Metallicity Relation for the Local Group Dwarf Spheroidal Galaxies: A New Picture for the Chemical Enrichment of Galaxies in the Lowest Mass Range

Cited by in corpus (31)

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• The Survey for Ionization in Neutral Gas Galaxies: I. Description and Initial Results
• Observations of Thick Disks in the Hubble Space Telescope Ultra Deep Field
• Chemical abundance analysis of the Open Clusters Berkeley 32, NGC 752, Hyades and Praesepe
• Forming disk galaxies in wet major mergers. I. Three fiducial examples
• The Emergence of the Thick Disk in a CDM Universe II: Colors and Abundance Patterns
• A Study of Edge-On Galaxies with the Hubble Space Telescope's Advanced Camera for Surveys. II. Vertical distribution of the resolved stellar population
• A radial age gradient in the geometrically thick disk of the Milky Way
• Two Disk Components from a Gas Rich Disk-Disk Merger
• What Causes The Formation of Disks and End of Bursty Star Formation?
• The Kinematics of Thick Disks in Nine External Galaxies
• Characteristics of thick disks formed through minor mergers: stellar excesses and scale lengths
• The Kinematics of Thick Disks in External Galaxies
• Lick Indices in the Thin and Thick Disks of Edge-On Disk Galaxies
• The reports of thick discs' deaths are greatly exaggerated: thick discs are NOT artefacts caused by diffuse scattered light
• Velocity Shear of the Thick Disk from SPM3 Proper Motions at the South Galactic Pole
• Quantifying the Faint Structure of Galaxies: The Late-type Spiral NGC 2403
• Dynamics of Disks and Warps
• The stellar population content of the thick disk and halo of the Milky Way analogue NGC 891
• NGC 5746: formation history of a massive disc-dominated galaxy
• On the Flaring of Thick Disc of Galaxies: Insights from Simulations
• The star formation history of the Sculptor Dwarf Irregular Galaxy
• Ultra-deep Imaging: Structure of Disks and Haloes
• The stellar population and metallicity distribution of the Sombrero galaxy
• Astrophysics in 2005
• Kinematical & Chemical Characteristics of the Thin and Thick Disks
• The Milky Way in context: The formation of galactic discs and chemical sequences from a cosmological perspective
• The star-formation history of the Milky Way Galaxy
• Deep surface photometry of edge-on spirals in Abell galaxy clusters: constraining environmental effects