Resolving the Stellar Outskirts of M31 and M33

Abstract

Many clues about the galaxy assembly process lurk in the faint outer regions of galaxies. The low surface brightnesses of these parts pose a significant challenge for studies of diffuse light, and few robust constraints on galaxy formation models have been derived to date from this technique. Our group has pioneered the use of extremely wide-area star counts to quantitatively address the large-scale structure and stellar content of external galaxies at very faint light levels. We highlight here some results from our imaging and spectroscopic surveys of M31 and M33.

arXiv comment6 pages, 4 figures. To appear in the proceedings of "Island Universes - Structure and Evolution of Disk Galaxies", editor R.S. de Jong (Springer: Dordrecht)

References in corpus (11)

• Simulations of Galaxy Formation in a Lambda CDM Universe II: The Fine Structure of Simulated Galactic Disks
• A giant stream of metal-rich stars in the halo of the galaxy M31
• Evidence for Stellar Substructure in the Halo and Outer Disk of M31
• The Formation of a Realistic Disk Galaxy in Lambda Dominated Cosmologies
• On the accretion origin of a vast extended stellar disk around the Andromeda galaxy
• Taking measure of the Andromeda halo: a kinematic analysis of the giant stream surrounding M31
• A Minor Axis Surface Brightness Profile for M31
• The three dimensional structure of the giant stellar stream in Andromeda
• Halos around edge-on disk galaxies in the SDSS
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• A faint red stellar halo around an edge-on disc galaxy in the Hubble Ultra Deep Field

Cited by in corpus (31)

• Evolution of Galactic Discs: Multiple Patterns, Radial Migration and Disc Outskirts
• Radial Mixing in Galactic Disks: The Effects of Disk Structure and Satellite Bombardment
• The Detection of Inside-out Disk Growth in M33
• The ACS Nearby Galaxy Survey Treasury V. Radial Star Formation History of NGC 300
• The Abundance Gradient in the Extremely Faint Outer Disk of NGC 300
• A unified picture of breaks and truncations in spiral galaxies from SDSS and S^{4}G imaging
• The photometric properties of a vast stellar substructure in the outskirts of M33
• Quantifying the Faint Structure of Galaxies: The Late-type Spiral NGC 2403
• The Star Formation History in The Far Outer Disc of M33
• Disk galaxies with broken luminosity profiles from cosmological simulations
• Resolving the Stellar Outskirts of M81: Evidence for a Faint, Extended Structural Component
• Metallicities, Age--Metallicity relationships, and Kinematics of Red Giant Branch Stars in the Outer Disk of the Large Magellanic Cloud
• Kinematics and Mass Modeling of Messier 33: Halpha observations
• The Structure of the Outer Galactic Disc as revealed by IPHAS early A Stars
• On the 3 dimensional structure of edge-on disk galaxies
• The environmental dependence of the structure of outer galactic discs in STAGES spiral galaxies
• Stellar haloes outshine disc truncations in low-inclined spirals
• The environmental dependence of the structure of galactic discs in STAGES S0 galaxies: implications for S0 formation
• The TREX Survey: Kinematical Complexity Throughout M33's Stellar Disk and Evidence for a Stellar Halo
• Anti-truncated stellar light profiles in the outer regions of STAGES spiral galaxies: bulge or disc related?
• The star-formation history of low-mass disk galaxies: a case study of NGC\,300
• The Triangulum Extended (TREX) Survey: The Stellar Disk Dynamics of M33 as a Function of Stellar Age
• The Impact of Stellar Migration on Disk Outskirts
• Isolating the young stellar population in the outer disk of NGC 300
• CLUES about M33: the reversed radial stellar age gradient in the outskirts of Triangulum galaxy
• Tracing the outer disk of NGC 300: An ultraviolet view
• A Dwarf Disrupting -- Andromeda XXVII and the North West Stream
• The role of environment on the star formation history of disc galaxies
• A deep narrowband survey for planetary nebulae at the outskirts of M33
• Outer Spiral Disks as Clues to Galaxy Formation and Evolution
• Evolution of gaseous disk viscosity driven by supernova explosion. II. Structure and emissions from star-forming galaxies at high redshift