about
A Wide-Field View of Leo II: A Structural Analysis Using the Sloan Digital Sky SurveyA tidally distorted dwarf galaxy near NGC 4449.The Anisotropic Distribution of M31 Satellite Galaxies: A Polar Great Plane of Early-type CompanionsPopulation gradients and photometric metallicities in early- and transition-type dwarf galaxies: Clues from the Sculptor groupThe Extended Star Formation History of the Andromeda Spheroid at 35 kpc on the Minor AxisThe masses of local group dwarf spheroidal galaxies: the death of the universal mass profileA kinematic study of the Andromeda dwarf spheroidal system4MOST: 4-metre Multi-Object Spectroscopic TelescopeVelocity and abundance precisions for future high-resolution spectroscopic surveys: A study for 4MOST4MOST: 4-metre multi-object spectroscopic telescopeChemical abundances of metal-poor RR Lyrae stars in the Magellanic CloudsDwarf spheroidal galaxy kinematics and spiral galaxy scaling lawsDwarf Galaxies Beyond Our Doorstep: the Centaurus GroupM 81 Group dSphs: Metallicity Distribution Functions and GradientsSpectroscopic versus photometric metallicities: Milky Way dwarf spheroidal companions as a test caseAn abundance study of red-giant-branch stars in the Hercules dwarf spheroidal galaxyDwarf spheroidals in the M 81 group – Metallicity distribution functions and population gradientsAges and luminosities of young SMC/LMC star clusters and the recent star formation history of the CloudsEarly-type dwarf galaxies in the M81 groupComplexity in small-scale dwarf spheroidal galaxiesKinematic subpopulations in dwarf spheroidal galaxiesDwarf spheroidal galaxies in the M81 group of galaxiesEvolution of dwarf galaxies in the Centaurus A groupA new low mass for the Hercules dSph: the end of a common mass scale for the dwarfs?A photometric and spectroscopic study of the new dwarf spheroidal galaxy in Hercules . Metallicity, velocities, and a clean list of RGB membersStructural parameters of seven Small Magellanic Cloud intermediate-age and old star clustersA constant dark matter halo surface density in galaxiesThe Age-Metallicity Relation of the SMCYoung Star Clusters in the SMCThe Highly Unusual Chemical Composition of the Hercules Dwarf Spheroidal GalaxyAge determination of six intermediate-age Small Magellanic Cloud star clusters with HST/ACSAn accurate age determination for the Small Magellanic Cloud star cluster NGC 121 with the Hubble Space Telescope/Advanced Camera for SurveysComplexity on small scales. III. Iron and {alpha} element abundances in the Carina dwarf spheroidal galaxyObserved Properties of Dark Matter: dynamical studies of dSph galaxiesA spectroscopy-based Age-Metallicity Relation of the SMCThe Observed Properties of Dark Matter on Small Spatial ScalesStellar Kinematics and Metallicities in the Leo I Dwarf Spheroidal Galaxy—Wide‐Field Implications for Galactic EvolutionComplexity on Small Scales. II. Metallicities and Ages in the Leo II Dwarf Spheroidal GalaxyErratum: "The Anisotropic Distribution of M31 Satellite Galaxies: A Polar Great Plane of Early-Type Companions" ([URL ADDRESS="/cgi-bin/resolve?2006AJ....131.1405K" STATUS="OKAY"]AJ, 131, 1405 [2006][/URL])Further Evidence of a Merger Origin for the Thick Disk: Galactic Stars along Lines of Sight to Dwarf Spheroidal Galaxies
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description
researcher ORCID ID = 0000-0002-9859-4956
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wetenschapper
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name
Andreas Koch
@ast
Andreas Koch
@en
Andreas Koch
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Andreas Koch
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type
label
Andreas Koch
@ast
Andreas Koch
@en
Andreas Koch
@es
Andreas Koch
@nl
prefLabel
Andreas Koch
@ast
Andreas Koch
@en
Andreas Koch
@es
Andreas Koch
@nl
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0000-0002-9859-4956