Dense Stellar Populations: Initial Conditions

Abstract

This chapter is based on four lectures given at the Cambridge N-body school "Cambody". The material covered includes the IMF, the 6D structure of dense clusters, residual gas expulsion and the initial binary population. It is aimed at those needing to initialise stellar populations for a variety of purposes (N-body experiments, stellar population synthesis).

85 pages. To appear in The Cambridge N-body Lectures, Sverre Aarseth, Christopher Tout, Rosemary Mardling (eds), Lecture Notes in Physics Series, Springer Verlag

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• The maximum stellar mass, star-cluster formation and composite stellar populations
• An upper limit to the masses of stars
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• The relationship between the prestellar core mass function and the stellar initial mass function
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• UNIFICATION OF THE NEARBY AND PHOTOMETRIC STELLAR LUMINOSITY FUNCTIONS
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• Evidence for top-heavy stellar initial mass functions with increasing density and decreasing metallicity
• Mass segregation and fractal substructure in young massive clusters: (I) the McLuster code and method calibration
• The formation of very wide binaries during the star cluster dissolution phase
• Dynamical Formation of Close Binaries During the Pre-main-sequence Phase
• Extended stellar systems in the solar neighborhood -- V. Discovery of coronae of nearby star clusters
• The mmax-Mecl relation, the IMF and IGIMF: probabilistically sampled functions?
• Runaway massive stars from R136: VFTS 682 is very likely a "slow runaway"
• An analytical description of the evolution of binary orbital-parameter distributions in N-body computations of star clusters
• Testing the universality of star formation - I. Multiplicity in nearby star-forming regions
• Monte Carlo Simulations of Star Clusters - VII. The globular cluster 47 Tuc
• How can young massive clusters reach their present-day sizes?
• The Complex Distribution of Recently Formed Stars. Bimodal Stellar Clustering in the Star-Forming Region NGC 346
• Direct N-body simulations of globular clusters: (I) Palomar 14
• Preparing the next gravitational million-body simulations: Evolution of single and binary stars in Nbody6++GPU, MOCCA and McLuster
• The emergence of super-canonical stars in R136-type star-burst clusters
• On the initial binary population for star cluster simulations
• The state of globular clusters at birth II: primordial binaries
• The evolution of binary populations in cool, clumpy star clusters
• Did the infant R136 and NGC 3603 clusters undergo residual gas expulsion?
• The distribution and morphologies of Fornax Cluster dwarf galaxies suggest they lack dark matter
• Complete ejection of OB stars from very young star clusters and the formation of multiple populations
• A parametric study on the formation of extended star clusters and ultra-compact dwarf galaxies
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- IV. cataclysmic variables -- properties of bright and faint populations
• Binaries in the field: fossils of the star formation process?
• Strong constraints on the gravitational law from $Gaia$ DR3 wide binaries
• Asymmetrical tidal tails of open star clusters: stars crossing their cluster's prah challenge Newtonian gravitation
• Monte Carlo Simulations of Star Clusters - VI. The globular cluster NGC 6397
• In Search of the Thermal Eccentricity Distribution
• Influence of a stellar cusp on the dynamics of young stellar discs and the origin of the S-stars in the Galactic Centre
• A perfect starburst cluster made in one go: the NGC 3603 young cluster
• Mass-loss and expansion of ultra compact dwarf galaxies through gas expulsion and stellar evolution for top-heavy stellar initial mass functions
• The Evolution of Primordial Binary Open Star Clusters: Mergers, Shredded Secondaries and Separated Twins
• Constraining the initial mass function of stars in the Galactic Centre
• The dynamical fate of binary star clusters in the Galactic tidal field
• Embedded Binaries and Their Dense Cores
• Dwarf spheroidal satellites of the Milky Way from dark matter free tidal dwarf galaxy progenitors: maps of orbits
• The same, but different: Stochasticity in binary destruction
• Hierarchical Stellar Structures in the Local Group Dwarf Galaxy NGC 6822
• Direct $N$-body simulations of globular clusters - II. Palomar 4
• Internal kinematics of GAIA DR3 wide binaries: anomalous behaviour in the low acceleration regime
• The initial period function of late-type binary stars and its variation
• On the true shape of the upper end of the stellar initial mass function: The case of R136
• Great Balls of FIRE II: The evolution and destruction of star clusters across cosmic time in a Milky Way-mass galaxy
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- I. cataclysmic variables -- present-day population
• The Solar Neighborhood XLIX: New Discoveries and Orbits of M Dwarf Multiples with Speckle Interferometry at SOAR
• The clustered nature of star formation. Pre--main-sequence clusters in the star-forming region NGC 602/N90 in the Small Magellanic Cloud
• Very massive stars in not so massive clusters
• LMC self lensing for OGLE-II microlensing observations
• The Binary Fraction and Mass Segregation in Alpha Persei Open Cluster
• Faint Fuzzy Star Clusters in NGC1023 as Remnants of Merged Star Cluster Complexes
• The dynamical evolution of very-low mass binaries in open clusters
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- III. Cataclysmic variables -- Implications of model assumptions
• The initial mass function of the rich young cluster NGC 1818 in the Large Magellanic Cloud
• Do ultra compact dwarf galaxies form monolithically or as merged star cluster complexes?
• On the absence of symbiotic stars in globular clusters
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- II. Cataclysmic variables -- progenitors and population at birth
• The giants that were born swiftly -- Implications of the top-heavy stellar initial mass function on the birth conditions of globular clusters
• Long-term stability of planets in and around binary stars
• The universality hypothesis: binary and stellar populations in star clusters and galaxies
• BiPoS1 -- a computer programme for the dynamical processing of the initial binary star population
• The initial mass function of stars and the star-formation rates of galaxies
• The evolution of phase space densities in star-forming regions
• Can star cluster environment affect dust input from massive AGB stars?
• Fast radio burst repeaters produced via Kozai-Lidov feeding of neutron stars in binary systems
• Dynamical masses across the Hertzsprung-Russell diagram
• Effects of physical conditions on the stellar initial mass function: The low-metallicity star-forming region Sh 2-209
• Wide-binary eccentricity distribution in young star clusters: dependence on the binary separation and mass
• Dark Star Clusters or Ultra-Faint Dwarf galaxies? Revisiting UMa3/U1
• The evolution of velocity dispersion in the Sco-Cen OB association
• The p-Laplacian as a Framework for Generalizing Newtonian Gravity and MoND
• Primordial mass segregation of star clusters: The role of binary stars
• The MOND Depth Index and Dynamical Maturity Clock: Toward a Universal Classification of Galaxies and Star Clusters
• The eccentricity distribution of wide binaries and their individual measurements