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    4. Database of black hole populations in different stellar environments.

    This database is devoted to astrophysical research on stelar-mass black holes. For the original research paper see Wiktorowicz et al. (2019). All the model-related detailes can be found in the paper. The database provides technical details necessary for the application of its resultrs in various researches.

    Main models (analysed in Wiktorowicz et al.) are named in the following scheme: MODELNAME_DATATYPE.dat

    where MODELNAME relates the datafile to the models described in the paper in the following way

    std - standard model
    NKbe - Bray & Eldridge natal kicks model
    NKr - Rodriguez et al. natal kicks model
    SS0 - initial distributions model SS0
    flatIMF/steepIMF - flat/steep IMF models
    lowZ - model with metallicity Z=0.0002
    midZ - model with metallicity Z=0.002
    For the large grid of models named files are named in the following way: DESIGNATION_DATATYPE.dat

    where DESIGNATION may containe one or more of the model names defined above. In these cases the model is a combination of main models described in the paper.
    For example SS0_flatIMF_lowZ_binary.dat is a model similar to std but with initial parameters defined as in SS0, flat IMF, and metallicity equal Z=0.0002

    DATATYPE may be

    single - information of sigle stars originating from disrupted binaries
    binary - data on BH with companions stars (including double BH)
    merger - stellar mergers

    For example std_single.dat contains information for single black holes in standard model

    Below the content of each DATATYPE files are described:

    single:
    Each record for one disrupted binary has a format (multiple lines):

    Ka Kb Ma Mb ta_end tb_end Mzamsa Mzamsb a0 e0 iidd idum
    MpgaA MpgbA KpgaA KpgbA apgA epgA tpgA MendaA dMcea inbinA ecssna
    MpgaB MpgbB KpgaB KpgbB apgB epgB tpgB MendbB dMceb inbinB ecssnb
    Vax Vay Vaz
    Vbx Vby Vbz
    Vsm0x Vsm0y Vsm0z
    Vextrx Vextry Vextrz
    evroute

    where each field represents [units are provided in brackets]:

    • Ka/Kb is a type of the star A/B (see below)
    • Ma/Mb is the final mass of the star A/B [Msun]
    • ta_end/tb_end is a time the formation of compact object A/B [Myr]
    • Mzamsa/Mzamsb is the mass on ZAMS for star A/B [Msun]
    • a0 is the separation on ZAMS [Rsun]
    • e0 is the eccentricity on ZAMS
    • idum, iidd - identifiers of a system (i.e. all lines with identical idum and iidd refer to the same binary)
    • MpgxY is the mass of the star x just before the SN of the star Y [Msun]
    • KpgxY is the type of the star x just before the SN of the star Y (see below)
    • apgY is the separation just before the SN of the star Y [Rsun]
    • epgY is the eccentricity just before the SN of the star Y
    • tpgY is the time of SN of the star Y [Myr]
    • MendyY is the compact object mass Y just after its SN [Msun]
    • dMcex is the mass accreted by x during CE eventS SN [Msun]
    • inbinY indicates if the system is bound (1) or disrupted (0) after the SN of sthe star Y
    • ecssnX indicates if the SN of the star X was ECS (1), or regular SN (0)
    • Vsx,Vsy,Vsz is a 3D post disruption velocity of the star s, relatively to its center of mass [Rsun/day]
    • Vsm0x,Vsm0y,Vsm0z is a 3D center of mass velocity afte the first SN (non-zero only is the system remains bound after first SN) [Rsun/day]
    • Vextrx,Vextry,Vextrz is a 3D velocity of a star which formed a compact after the disruption of the binary (i.e. both inbinA and inbinB are equal 0) [Rsun/day]
    • object after a disruption of the binary (non-zero only if the binary became disrupted during the first SN) [Rsun/day]
    • evroute is a symbolical description of binary evolution (see below)


    binary:
    Each record for one time-step of a bound binary has a format:
    t dt Ma Mb Ka Kb a e Ra Rb La Lb aspina aspinb mt mttype Lxmt Lx Vsmx Vsmy Vsmz Mzamsa Mzamsb a0 e0 idum iidd evroute

    • t is the age of the system (i.e. time since ZAMS) [Myr]
    • dt is the length of the actual time-step [Myr]
    • a is the semi-major axis of the system [Rsun]
    • e is the eccentricity of the system
    • Rx is the radius of the star x [Rsun]
    • Lx is the luminosity of the star x [Lsun]
    • aspinx is a spin of the star x (non-zero only if x is a black hole)
    • mt is 1/0 if the mass transfer is on/off
    • mttype is the timescale of mass transfer (1 - nuclear, 4 - thermal, 5 - mass transfer from white dwarf)
    • Lxmt is a luminosity of an accretion disk during RLOF [erg/s] (non-zero only if mass transfer onto a compact accretor is present)
    • Lx is a luminosity coming from wind accretion [erg/s] (non-zero only if a donor has a significant wind and accretor is a compact object)
    • Vsmx, Vsmy, Vsmz is a 3D centre of mass velocity [Rsun/day]
    • Mzamsa/Mzamsb is the mass on ZAMS for star A/B [Msun]
    • a0 is the separation on ZAMS [Rsun]
    • e0 is the eccentricity on ZAMS
    • idum, iidd - identifiers of a system (i.e. all lines with identical idum and iidd refer to the same binary)
    • evroute is a symbolical description of binary evolution (see below)


    merger:
    Each record for one merging binary has a format:
    t tvira tvirb Ka Kb Ma Mb a e Mzamsa Mzamsb a0 e0 iidd idum Vsmx Vsmy Vsmz Ra Rb ta_end tb_end evroute

    • t is the age of the system (i.e. time since ZAMS) [Myr]
    • tvirx is a time spent in a particular evolutionary stage (e.g. MS, HG) [Myr]
    • Ka/Kb is a type of the star A/B (see below)
    • Ma/Mb is the final mass of the star A/B [Msun]
    • a is the semi-major axis of the system [Rsun]
    • e is the eccentricity of the system
    • Mzamsa/Mzamsb is the mass on ZAMS for star A/B [Msun]
    • a0 is the separation on ZAMS [Rsun]
    • e0 is the eccentricity on ZAMS
    • idum, iidd - identifiers of a system (i.e. all lines with identical idum and iidd refer to the same binary)
    • Vsmx, Vsmy, Vsmz is a 3D centre of mass velocity for a pre-merger binary [Rsun/day]
    • Rx is the radius of the star x [Rsun]
    • ta_end/tb_end is a time the formation of compact object A/B [Myr]
    • evroute is a symbolical description of binary evolution (see below)


    The list of phases used to describe evolutionary history (evroute):

    MTx - stands for non-conservative mass transfer through Roche lobe overflow. "x" indicates the donor: 1-primary, 2-secondary.
    SNx - stands for a supernovae explosion.
    CEx(a0-b0:a1-b1) - stands for a common envelope events.
    "x" indicates the donor star: 1-primary, 2-secondary or 12-both components are donors.
    "a0-b0" are integer numbers indicating stellar types (explained below) of the primary-secondary components, respectively, at the start of the CE.
    Analogously "a1-b1" indicate stellar types at the outcome of the CE.
    For example "CE2(14-2:14-7)" means that a CE was initiated by the secondary component ("CE2"), which was a Hertzsprung gap star ("-2:"), onto the primary, which was a black hole ("14-").
    In the outcome, the secondary ejected its hydrogen envelope and became a Wolf-Rayet star ("-7"), while the primary remained a black hole (":14-").
    AICtypex indicates an accretion induced core collapse.
    "type" describes the compact object to which the progenitor has collapsed and "x" - the relevant component: 1-primary, 2-secondary.
    For example "AICNS1" means that the accreting primary star ("1") has collapsed into a neutron star ("NS").

    List of stellar types:

    0 - main sequence star with M<=0.7 Msun (deeply or fully convective)
    1 - main sequence star with M>0.7 Msun
    2 - Hertzsprung gap star
    3 - first giant branch star
    4 - core helium burning star
    5 - early asymptotic giant branch star
    6 - thermally pulsing asymptotic giant branch star
    7 - main sequence naked helium star (Wolf-Rayet star)
    8 - Hertzsprung gap naked helium star
    9 - giant branch naked helium star
    10 - helium white dwarf
    11 - carbon/oxygen white dwarf
    12 - oxygen/neon white dwarf
    13 - neutron star
    14 - black hole
    17 - hybrid white dwarf

    List of main Blackhole database files

    List of all Blackhole database files