Publications (9)
The Effect of Pair-Instability Mass Loss on Black Hole Mergers
K. Belczynski, A. Heger, W. Gladysz +9
Mergers of two stellar origin black holes are a prime source of gravitational waves and are under intensive investigations. One crucial ingredient in their modeling has so far been…
Missing Black Holes Unveil The Supernova Explosion Mechanism
K. Belczynski, G. Wiktorowicz, C. Fryer +2
It is firmly established that the stellar mass distribution is smooth, covering the range 0.1-100 Msun. It is to be expected that the masses of the ensuing compact remnants correla…
The occurrence of Binary Evolution Pulsators in the classical instability strip of RR Lyrae and Cepheid variables
P. Karczmarek, G. Wiktorowicz, K. IÅkiewicz +5
Single star evolution does not allow extremely low-mass stars to cross the classical instability strip (IS) during the Hubble time. However, within binary evolution framework low-m…
The origin of the first neutron star -- neutron star merger
K. Belczynski, A. Askar, M. Arca-Sedda +8
The first neutron star-neutron star (NS-NS) merger was discovered on August 17, 2017 through gravitational waves (GW170817) and followed with electromagnetic observations. This mer…
Multiple stellar populations in MOCCA globular cluster models: Transient spatial over-concentration of pristine red giant stars driven by strong dynamical encounters
M. Giersz, A. Askar, A Hypki +3
Recent findings show that, in some Milky Way globular clusters (GCs), pristine red giant branch (RGB) stars are more centrally concentrated than enriched RGB stars. This contradict…
Compact Remnant Mass Function: Dependence on the Explosion Mechanism and Metallicity
C. L. Fryer, K. Belczynski, G. Wiktorowicz +3
The mass distribution of neutron stars and stellar-mass black holes provides vital clues into the nature of stellar core collapse and the physical engine responsible for supernova…
Testing the presence of a dormant black hole inside HR 6819
A. Romagnolo, A. Olejak, A. Hypki +2
HR 6819 was recently reported to be a triple system with a dormant black hole (BH). The inner binary system was defined as a star estimated to be at the end of its main sequence an…
Distance Estimation and Sky Localization of Eccentric Double White Dwarf Binaries from Gravitational Wave Observations inside Globular Clusters
Yuetong Zhao, L. Hellström, Siqi Zhang +7
The cosmic distance scale is built on multiple different techniques for estimating distances in space that are often connected and dependent on multiple measurements and assumption…
The evolutionary roads leading to low effective spins, high black hole masses, and O1/O2 rates of LIGO/Virgo binary black holes
K. Belczynski, J. Klencki, C. E. Fields +31
All ten LIGO/Virgo binary black hole (BH-BH) coalescences reported from the O1/O2 runs have near zero effective spins. There are only three potential explanations of this fact. If…