MOCCA code for star cluster simulations - I. Blue Stragglers, first results

Abstract

We introduce an improved code for simulations of star clusters, called MOCCA. It combines the Monte Carlo method for star cluster evolution and the Fewbody code to perform scattering experiments. The Fewbody was added in order to track more precisely dynamical interactions between objects which can lead to creations of various exotic objects observed in the star clusters, like Blue Stragglers Stars (BSS). The MOCCA code is currently one of the most advanced codes for simulating real size star clusters. It follows the star cluster evolution closely to N-body codes but is much faster. We show that the MOCCA code is able to follow the evolution of BSS with details. It is a suitable tool to perform full scale evolution of real star clusters and detail comparison with observations of exotic star cluster objects like BSS. This paper is the first one of the series of papers about properties of BSS in star clusters. This type of stars is particularly interesting today, because by studying them one can get important constrains on a link between the stellar and dynamical evolution of star clusters. We discuss here first results concerning BSS for an arbitrary chosen test model. We investigate properties of BSS which characterize different channels of formation like masses, semi-major axes, eccentricities, and orbital periods. We show how BSS from different channels change their types, and discuss initial and final positions of BSS, their bimodal distribution in the star cluster, lifetimes and more.

25 pages, 25 figures

References in corpus (9)

• A Binary Origin for Blue Stragglers in Globular Clusters
• Discovery of Carbon/Oxygen depleted Blue Straggler Stars in 47 Tucanae: the chemical signature of a mass-transfer formation process
• The radial distribution of blue straggler stars and the nature of their progenitors
• Blue Straggler Stars in the Unusual Globular Cluster NGC 6388
• The Blue Straggler Population of the Globular Cluster M5
• A Correlation between Blue Straggler and Binary Fractions in the core of Galactic Globular Clusters
• Monte Carlo Simulations of Star Clusters - V. The globular cluster M4
• The surprising external upturn of the Blue Straggler radial distribution in M55
• Deep ACS Imaging in the Globular Cluster NGC6397: Dynamical Models

Cited by in corpus (113)

• The DRAGON simulations: globular cluster evolution with a million stars
• Relativistic Dynamics and Extreme Mass Ratio Inspirals
• A stellar census in globular clusters with MUSE: Binaries in NGC 3201
• BSE versus StarTrack: implementations of new wind, remnant-formation, and natal-kick schemes in NBODY7 and their astrophysical consequences
• MOCCA-SURVEY Database I: Galactic Globular Clusters Harbouring a Black Hole Subsystem
• Very high redshift quasars and the rapid emergence of super-massive black holes
• The origin of the first neutron star -- neutron star merger
• MOCCA-SURVEY Database I: Eccentric Black Hole Mergers During Binary-Single Interactions In Globular Clusters
• Stellar-mass black holes in young massive and open stellar clusters IV: updated stellar-evolutionary and black hole spin models and comparisons with the LIGO-Virgo O1/O2 merger-event data
• A novel look at energy equipartition in globular clusters
• Binary Black Hole Mergers from Globular Clusters: the Impact of Globular Cluster Properties
• Stellar Collisions and Blue Straggler Stars in Dense Globular Clusters
• Preparing the next gravitational million-body simulations: Evolution of single and binary stars in Nbody6++GPU, MOCCA and McLuster
• The Dynamical Significance of Triple Star Systems in Star Clusters
• On the initial binary population for star cluster simulations
• A slow-down time-transformed symplectic integrator for solving the few-body problem
• The state of globular clusters at birth II: primordial binaries
• Multiple Stellar Evolution: a population synthesis algorithm to model the stellar, binary, and dynamical evolution of multiple-star systems
• MOCCA Survey Database I: Dissolution of tidally filling star clusters harbouring BH subsystems
• Gravitational Wave Astronomy With TianQin
• Dynamical Evolution of Multiple-Population Globular Clusters
• Order in the chaos: eccentric black hole binary mergers in triples formed via strong binary-binary scatterings
• Collisional N-Body Dynamics Coupled to Self-Gravitating Magnetohydrodynamics Reveals Dynamical Binary Formation
• In Search of the Thermal Eccentricity Distribution
• Discovery of Extended Main Sequence Turn-offs in Four Young Massive Clusters in the Magellanic Clouds
• A new Monte Carlo method for dynamical evolution of non-spherical stellar systems
• Compact Binary Coalescences: Astrophysical Processes and Lessons Learned
• MOCCA SURVEY Database I: Binary Black Hole Mergers from Globular Clusters with Intermediate Mass Black Holes
• Mass Evaporation Rate of Globular Clusters in a Strong Tidal Field
• Formation of super-massive black holes in galactic nuclei I: delivering seed intermediate-mass black holes in massive stellar clusters
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- I. cataclysmic variables -- present-day population
• The Effect of Distant Encounters on Black Hole Binaries in Globular Clusters: Systematic Increase of In-cluster Mergers in the LISA band
• The state of globular clusters at birth: emergence from the gas-embedded phase
• Interrupted Stellar Encounters in Star Clusters
• Dynamical Formation of Cataclysmic Variables in Globular Clusters
• Stellar-mass black holes in young massive and open stellar clusters V: comparisons with LIGO-Virgo merger rate densities
• Growing Black Holes through Successive Mergers in Galactic Nuclei: I. Methods and First Results
• The impact of primordial binary on the dynamical evolution of intermediate massive star clusters
• A flexible method to evolve collisional systems and their tidal debris in external potentials
• Dynamical modelling of globular clusters: challenges for the robust determination of IMBH candidates
• Exploring compact binary populations with the Einstein Telescope
• MOCCA: Dynamics and evolution of binary stars of multiple stellar populations in tidally filling and underfilling globular star clusters
• Implementing Tidal and Gravitational Wave Energy Losses in Few-body Codes: A Fast and Easy Drag Force Model
• A 3D view of multiple populations kinematics in Galactic globular clusters
• Relativistic mergers of compact binaries in clusters: The fingerprint of the spin
• UOCS-VIII. UV Study of the open cluster NGC 2506 using ASTROSAT
• Formation of supermassive black holes in galactic nuclei II: retention and growth of seed intermediate-mass black holes
• Finding Black Holes with Black Boxes -- Using Machine Learning to Identify Globular Clusters with Black Hole Subsystems
• Blue straggler evolution caught in the act in the Large Magellanic Cloud globular cluster Hodge 11
• Interrupted Binary Mass Transfer in Star Clusters
• The relation between the mass-to-light ratio and the relaxation state of globular clusters
• Mock Observations of Blue Stragglers in Globular Cluster Models
• Determination of dynamical ages of open clusters through the A${}^{+}$ parameter -- I
• Probing the role of dynamical friction in shaping the BSS radial distribution. I - Semi-analytical models and preliminary N-body simulations
• A Triple Origin for Twin Blue Stragglers in Close Binaries
• Magnetic dynamos in white dwarfs -- I. Explaining the dearth of bright intermediate polars in globular clusters
• On the absence of symbiotic stars in globular clusters
• MOCCA code for star cluster simulations - VI. Bimodal spatial distribution of blue stragglers
• Understanding the central kinematics of globular clusters with simulated integrated-light IFU observations
• Model computations of blue stragglers and W UMa-type stars in globular clusters
• MOCCA-SURVEY Database II -- Properties of Intermediate Mass Black Holes escaping from star clusters
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- II. Cataclysmic variables -- progenitors and population at birth
• Dynamically Formed Black Hole Binaries: In-Cluster Versus Ejected Mergers
• Rapid formation of a very massive star >50000 $M_{\odot }$ and subsequently an IMBH from runaway collisions. Direct N-body and Monte Carlo simulations of dense star clusters
• Mass segregation and dynamics of primordial binaries in star clusters with a radially anisotropic velocity distribution
• MOCCA code for star cluster simulations - V. Initial globular cluster conditions influence on blue stragglers
• A Monte Carlo study of early gas expulsion and evolution of star clusters: new simulations with the MOCCA code in the AMUSE framework
• Blue Stragglers and Friends: Initial Evolutionary Pathways in Close Low-Mass Binaries: Literature Review
• Formation and evolution of binary black holes in $N$-body simulations of star clusters with up to two million stars
• The M4 Core Project with HST --- I. Overview and First-Epoch
• Stellar populations in star clusters
• Evolution of a black hole cluster in full general relativity
• MOCCA Survey Database: Extra Galactic Globular Clusters. I. Method and first results
• The structural properties of multiple populations in the dynamically young globular cluster NGC 2419
• Energy equipartition in multiple-population globular clusters
• MOCCA: Global properties of tidally filling and underfilling globular star clusters with multiple stellar populations
• Exploring the formation environment of multiple stellar populations in Globular Clusters through binary systems
• The Multiple Origin of Blue Straggler Stars: Theory vs. Observations
• Blue straggler stars beyond the Milky Way. II. A binary origin for blue straggler stars in Magellanic Cloud clusters
• Dynamics of intermediate mass black holes in globular clusters. Wander radius and anisotropy profiles
• Searching for new observational signatures of the dynamical evolution of star clusters
• Evolutionary history of four binary blue stragglers from the globular clusters ωCen, M55, 47 Tuc and NGC 6752
• MOCCA: Effects of pristine gas accretion and cluster migration on globular cluster evolution, global parameters, and multiple stellar populations
• Astrophysics with the Laser Interferometer Space Antenna
• Phase-space mixing of multiple stellar populations in globular clusters
• Introducing a new multi-particle collision method for the evolution of dense stellar systems. Crash-test N-body simulations
• Forming short period sub-stellar companions in 47 Tucanae -- II. Analytic expressions for the orbital evolution of planets in dense environments
• Influence of tidal dissipation on outcomes of binary-single encounters between stars and black holes in stellar clusters
• Constraints on blue straggler formation mechanisms in Galactic globular clusters from proper motion velocity distributions
• New parameters for star cluster dynamics: the effect of primordial binaries and dark remnants
• Far-ultraviolet investigation into the galactic globular cluster M30 (NGC 7099): I. Photometry and radial distributions
• Bulge Fossil Fragments as a new population of factories of gravitational wave sources in the Galaxy
• Multiple stellar populations in MOCCA globular cluster models: Transient spatial over-concentration of pristine red giant stars driven by strong dynamical encounters
• Unveiling Bifurcated Blue Straggler Sequences in NGC 2173: Insights from Binary Evolution
• Forming short period sub-stellar companions in 47 Tuc: I. Dynamical model and brown dwarf tidal capture rates
• Evaluating the gravitational wave detectability of globular clusters and the Magellanic Clouds for LISA
• Ultraluminous X-ray sources in Globular Clusters
• Models of Individual Blue Stragglers
• Stellar-Mass Black Holes in Globular Clusters: Dynamical Consequences and Observational Signatures
• Introducing a new multi-particle collision method for the evolution of dense stellar systems II. Core collapse
• Testing the presence of a dormant black hole inside HR 6819
• Evolution of star clusters on eccentric orbits: semi-analytical approach
• KRIOS: A new basis-expansion $N$-body code for collisional stellar dynamics
• Double white dwarf binary population in MOCCA star clusters -- Comparisons with observations of close and wide binaries
• MOCCA-SURVEY Database I: Dissolution of tidally filling star clusters harboring black hole subsystem
• Are most Cataclysmic Variables in Globular Clusters dynamically formed?
• Further properties of the dynamical clock A+ indicator in a toy model of pure dynamical friction
• Analytical solutions for the dynamical clock A+ indicator in a toy model of pure dynamical friction
• Is the overconcentration of pristine populations in Galactic globular clusters real? An N-body approach to the problem
• Resolving white dwarf binaries within globular clusters with LISA
• Using Binaries in Globular Clusters to Catch Sight of Intermediate-Mass Black Holes
• MOCCA Code for Star Cluster Simulation: Comparison with Optical Observations using COCOA
• Taking apart the dynamical clock. Fat-tailed dynamical kicks shape the blue-straggler star bimodality