Year: 2022

BLACK HOLE SEEDS. “The chemical enrichment of a given halo is indeed the result of the ongoing and past star formation (i.e. metals and dust produced by stars in the parent galaxy and/or its progenitors) as well as contamination by infalling material from outside the halo (galactic winds). Both self-enrichment and winds play a role in setting the conditions for seed BH formation.” (BH = black hole). https://lnkd.in/dHcpNrnR View in LinkedIn

BLACK HOLE MERGERS. “In major mergers, BHs follow the fate of their host galaxies, coalescing to form a more massive BH. However, during this process, a large centre-of-mass recoil (kick) can be imparted to the newly formed BH as a consequence of asymmetric GW emission.” (BH = black hole; GW = gravitational wave). https://lnkd.in/dHcpNrnR View in LinkedIn

BLACK HOLE MERGERS. “The acquired kick velocity can be as large as ~ 100 kms(−1), enough to eject the coalesced binary out of the host galaxy.” https://lnkd.in/dHcpNrnR View in LinkedIn

BREEDING GROUND. “Recent ALMA observations presented by Trakhtenbrot et al. have revealed a large number, ~50%, of massive star-forming galaxies interacting with quasar hosts (within

GAGGED KNOWLEDGE. “We know more than we can say: We know more than we can tell and we can tell nothing without relying on our awareness of things we may not be able to tell. “ Polanyi (1958) the Social Phenomenologist. https://lnkd.in/dCz2CcNZ View in LinkedIn

Stunning Shield bug variant (?) with tribal mask design. View in LinkedIn

LARGE FAST WINDS. “High velocity (10(2)–10(3) km s−1) energy-driven winds on large scales have been recently also studied by Bieri et al. by means of radiation-hydrodynamic simulations of isolated galactic discs. They suggest that outflow rates as high as ~10(3) M⊙ yr−1 are sustained by IR radiation, with scattering on dust grains enabling efficient momentum transfer to the gas.” (IR = infrared). https://lnkd.in/dHcpNrnR View in LinkedIn

PLANCK DENSITY. “It is assumed that the "Planck" density of about 10(94) g/sm3, the substance of stars such changes occur, which should stop the compression of the stars to prevent endless drop to the point of singularity.” https://lnkd.in/dCUPXXmn View in LinkedIn

QUASAR ROLE. “Supermassive black holes (SMBHs) at the centres of galaxies are known to actively accrete, forming so-called `active galactic nuclei' (AGN) or `quasars'. These AGN are believed to feed back energy into their host galaxies, regulating star formation and the growth of the SMBH itself.” https://lnkd.in/d9BB4wDY View in LinkedIn

SUBMILLIMETER GALAXIES. “A cosmologically significant population of very luminous high-redshift galaxies has recently been discovered at submillimeter (submm) wavelengths.” https://lnkd.in/dAkZ_ejH View in LinkedIn