We present an open-access database which includes a synthetic catalog of black holes in the Milky Way. To calculate evolution of single and binary star we used updated population synthesis code StarTrack. We applied a new model of star formation history and chemical evolution of Galactic disk, bulge and halo synthesized from observational and theoretical data. We find that at the current moment Milky Way (disk+bulge+halo) contains about 1.6 x 10^8 single black holes with average mass of about 13 Msun and 9.3 x 10^6 BHs in binary systems with average mass of 19 Msun. We present basic statistical properties of BH populations such as distributions of single and binary BH masses, velocities or numbers of BH binary systems in different evolutionary configurations. We find that the most massive BHs are formed in mergers of binary stars and BH-BH systems. The metallicity of stellar population has a significant impact on the final BH mass due to the stellar winds. Therefore the most massive single BH in our simulation, 130 Msun, originates from a merger of main sequence and helium star in a low metallicity stellar environment in Galactic halo. The most massive BH in binary system is 60 Msun and was also formed in halo. We constrain that only 0.005% of total Galactic halo mass (including dark matter) could be hidden in the form of stellar origin BHs which are not detectable by current observational surveys. Galactic binary BHs are minority (10% of all Galactic BHs) and most of them are in BH-BH systems (8% of all). The current Galactic merger rates for two considered common envelope models which are: 3-81 Myr^-1 for BH-BH, 1-9 Myr^-1, for BH-NS and 14-59 Myr^-1 for NS-NS systems. Data files are available at https://bhc.syntheticuniverse.org/.
- Pub Date:
- August 2019
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - High Energy Astrophysical Phenomena
- 14 pages, data from catalog available online (to be sumbitted to A&