4 papers
Baryonic mass budgets in the central regions of the Bullet Cluster and their consistency with strong lensing in MOND
Dong Zhang, Hosein Haghi, Elena Asencio +8
Strong lensing observations of the Bullet Cluster have traditionally been regarded as strong evidence for dark matter and a major challenge to Milgromian dynamics (MOND). The offse…
The flaring drill in the Galactic centre. Did the IRS 13 cluster carve out the mini-cavity in the mini-spiral?
Jaroslav Haas, Pavel Kroupa, Florian PeiÃker +1
The mini-cavity is a low-density region observed in the complex of streams of ionized gas around the Galactic central supermassive black hole, Sgr A, known as the mini-spir…
Intermediate-mass black hole incubators. Gas accretion onto stellar black hole clusters in galactic central molecular zones
Jaroslav Haas, Pavel Kroupa, Sergij Mazurenko
The stellar dynamical evolution of massive star clusters formed during starburst periods leads to the segregation of stellar-mass black hole sub-clusters in t…
The star grinder in the Galactic centre. Uncovering the highly compact central stellar-mass black hole cluster
Jaroslav Haas, Pavel Kroupa, Ladislav Å ubr +1
Various past theoretical considerations and observational efforts suggest the presence of a population of stellar-mass black holes in the innermost parsec of the Galactic centre. I…