Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 350, Issue 2, Pages 725-728Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2004.07684.x
Keywords
stars : winds, outflows; Galaxy : centre
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We show that the recently discovered orbits of massive stars with closest approach of similar to10(3) Schwarzschild radii from Sgr A* allow winds from these stars to provide the required mass deposition rate near the black hole horizon. The observed luminosity of Sgr A* does not require viscous transport of angular momentum, as long as the total wind mass loss rate reaches similar to10(-6) M-circle dot yr(-1) from the close-in stars. The specific orbits of the nearest stars should cause modulation of the radio and infrared flux from Sgr A* on a time-scale of years in a predictable fashion.
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