SIMBAD references

2018MNRAS.480.4684B - Mon. Not. R. Astron. Soc., 480, 4684-4692 (2018/November-2)

Weighing the IMBH candidate CO-0.40-0.22* in the Galactic Centre.


Abstract (from CDS):

The high velocity gradient observed in the compact cloud CO-0.40-0.22, at a projected distance of 60 pc from the centre of the Milky Way, has led its discoverers to identify the closeby mm continuum emitter, CO-0.40-0.22*, with an intermediate mass black hole (IMBH) candidate. We describe the interaction between CO-0.40-0.22 and the IMBH, by means of a simple analytical model and of hydrodynamical simulations. Through such calculation, we obtain a lower limit to the mass of CO-0.40-0.22* of few 104 x M☉. This result tends to exclude the formation of such massive black hole in the proximity of the Galactic Centre. On the other hand, CO-0.40-0.22* might have been brought to such distances in cosmological time-scales, if it was born in a dark matter halo or globular cluster around the Milky Way.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): black hole physics - ISM: clouds - Galaxy: centre

Simbad objects: 7

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