Stellar dynamical evidence against a cold disc origin for stars in the Galactic Centre (2008)
Cuadra, Jorge, Armitage, Philip J., Alexander, Richard D.
Observations of massive stars within the central parsec of the Galaxy show that, while most stars orbit within a well-defined disc, a significant fraction have large eccentricities and / or...
Variable accretion and emission from the stellar winds in the Galactic centre (2007)
Cuadra, Jorge, Nayakshin, Sergei, Martins, Fabrice
We present numerical simulations of stellar wind dynamics in the central parsec of the Galactic centre, studying in particular the accretion of gas on to Sgr A*, the super-massive black hole. Unlike...
Simulations of star formation in a gaseous disc around sgr A* - a failed AGN (2007)
Nayakshin, Sergei, Cuadra, Jorge, Springel, Volker
We numerically model fragmentation of a gravitationally unstable gaseous disc under conditions that may be appropriate for the formation of the young massive stars observed in the central parsec of...
Clumpy winds and the obscuration of Active Galactic Nuclei (2006)
Nayakshin, Sergei, Cuadra, Jorge
The role of star-formation driven outflows in the obscuration of the central source in the Active Galactic Nuclei (AGN) is discussed. The outflow from a sub-parsec scale accretion disc is numerically...
Galactic centre stellar winds and Sgr A* accretion (2006)
Cuadra, Jorge, Nayakshin, Sergei, Springel, Volker, Di Matteo, Tiziana
Weighing the young stellar discs around Sgr A* (2006)
Nayakshin, Sergei, Dehnen, Walter, Cuadra, Jorge, Genzel, Reinhard
Weighing the young stellar discs around Sgr A* (2006)
Nayakshin, Sergei, Dehnen, Walter, Cuadra, Jorge, Genzel, Reinhard
Weighing the young stellar discs around Sgr A* (2005)
Nayakshin, Sergei, Dehnen, Walter, Cuadra, Jorge, Genzel, Reinhard
It is believed that young massive stars orbiting Sgr A* in two stellar discs on scales of 0.1-0.2 parsecs were formed either farther out in the Galaxy and then quickly migrated inward, or in situ in...
Accretion of cool stellar winds on to Sgr A*: Another puzzle of the galactic centre? (2005)
Cuadra, Jorge, Nayakshin, Sergei, Springel, Volker, Di Matteo, Tiziana
Self-gravitating accretion disk in Sgr A* few million years ago: was Sgr A* a failed quasar? (2004)
Nayakshin, Sergei, Cuadra, Jorge
Sgr A* is extra-ordinarily dim in all wavelengths requiring a very low accretion rate at the present time. However, at a radial distance of a fraction of a parsec from Sgr A*, two rings populated by...
Cuadra, Jorge, Nayakshin, Sergei, Sunyaev, Rashid
Cold inactive disks are believed to exist in Low Luminosity AGN (LLAGN). They may also exist in the nuclei of inactive galaxies and in the center of our own Galaxy. These disks would then be embedded...
X-ray flares from Sgr A*: star-disk interactions? (2003)
Nayakshin, Sergei, Cuadra, Jorge, Sunyaev, Rashid
Sgr A*, the putative black hole in our Galactic Center (GC), is extraordinary dim in all frequencies. Apparently the black hole is unable to accrete at the Bondi accretion rate for some reason....