Výsledky vyhledávání - "Devecchi, Bernadetta"

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Constraining the high redshift formation of black hole seeds in nuclear star clusters with gas inflows

Autor: Lupi, Alessandro, Colpi, Monica, Devecchi, Bernadetta, Galanti, Giorgio, Volonteri, Marta

In this paper we explore a possible route of black hole seed formation that appeal to a model by Davies, Miller & Bellovary who considered the case of the dynamical collapse of a dense cluster of stellar black holes subjected to an inflow of gas. Her

Externí odkaz: http://arxiv.org/abs/1406.2325

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Halo millisecond pulsars ejected by intermediate mass black holes in globular clusters

Autor: Sesana, Alberto, Sartore, Nicola, Devecchi, Bernadetta, Possenti, Andrea

Intermediate mass black holes (IMBHs) are among the most elusive objects in contemporary astrophysics. Both theoretical and observational evidence of their existence is subject of debate. Conversely, both theory and observations confirm the presence

Externí odkaz: http://arxiv.org/abs/1208.4365

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Formation of the first nuclear clusters and massive black holes at high redshift

Autor: Devecchi, Bernadetta, Volonteri, Marta

We present a model for the formation of massive black holes ($\sim 1000 \msun$) due to stellar-dynamical processes in the first stellar clusters formed at early cosmic times ($z\sim10-20$). The high redshift black hole seeds form as a result of multi

Externí odkaz: http://arxiv.org/abs/0810.1057

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