105 citations · 707 across the 36 of their papers we have counts for
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Black hole spin-mass correlation and accretion disks at birth stage of dense star clusters
Zacharias Roupas
We review the accretion-driven channel of stellar black-hole growth and spin-up in gaseous star clusters, developed within the framework of our MSCA project "protoBH". Our detailed…
Accretion-disk formation around orbiting stellar black holes in gaseous star clusters
Zacharias Roupas
We consider low-mass black holes (BHs) moving in regular orbits in the cores of non-rotating gaseous star clusters, representative of proto-stellar clusters or the centers of proto…
Spin-up and spin distribution of stellar black holes grown by gas accretion in proto-stellar clusters
Zacharias Roupas
Proto-stellar clusters, likely progenitors of globular clusters, are compact with typical mass and size , as revealed recently by JWST…
Massive Black Hole formation in proto-stellar clusters via early gas accretion
Zacharias Roupas
We review our semi-analytic model of stellar black hole (BH) mass growth by gas accretion in gas-rich stellar clusters during their birthstage within the first …
Black hole mass function shift in proto-stellar-clusters driven by gas accretion
Zacharias Roupas
The James Webb Space Telescope (JWST) has observed compact, massive proto-stellar clusters of low metallicity in the Cosmic Gems arc galaxy at high redshift, which represent likely…
Self-gravitating isothermal sphere in an expanding background
Zacharias Roupas
Spatially homogeneous thermal equilibria of self-gravitating gas, being impossible otherwise, are nevertheless allowed in an expanding background accounting for Universe's expansio…