activity
20152017
most citedA powerful flare from Sgr A* confirms the synchrotron nature of the X-ray emission

132 citations · 331 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2017★ 126 cited

Twelve years of spectroscopic monitoring in the Galactic Center: the closest look at S-stars near the black hole

M. Habibi, S. Gillessen, F. Martins +11

We study the young S-stars within a distance of 0.04 pc from the supermassive black hole in the center of our Galaxy. Given how inhospitable the region is for star formation, their…

astro-ph.GA2017★ 5 cited

3D AMR hydrosimulations of a compact source scenario for the Galactic Centre cloud G2

A. Ballone, M. Schartmann, A. Burkert +8

The nature of the gaseous and dusty cloud G2 in the Galactic Centre is still under debate. We present three-dimensional hydrodynamical adaptive mesh refinement (AMR) simulations of…

astro-ph.GA2017★ 39 cited

The Post-Pericenter Evolution of the Galactic Center Source G2

P. M. Plewa, S. Gillessen, O. Pfuhl +9

In early 2014 the fast-moving near-infrared source G2 reached its closest approach to the supermassive black hole Sgr A* in the Galactic Center. We report on the evolution of the i…

astro-ph.HE2017★ 132 cited

A powerful flare from Sgr A* confirms the synchrotron nature of the X-ray emission

G. Ponti, E. George, S. Scaringi +21

We present the first fully simultaneous fits to the NIR and X-ray spectral slope (and its evolution) during a very bright flare from Sgr A*, the supermassive black hole at the Milk…

astro-ph.GA2016

3D AMR simulations of G2 as an outflow

A. Ballone, M. Schartmann, A. Burkert +8

We study the evolution of G2 in a \textit{Compact Source Scenario}, where G2 is the outflow from a low-mass central star moving on the observed orbit. This is done through 3D AMR s…

astro-ph.GA2016

3D AMR simulations of the evolution of the diffuse gas cloud G2 in the Galactic Centre

M. Schartmann, A. Ballone, A. Burkert +8

With the help of 3D AMR hydrodynamical simulations we aim at understanding G2's nature, recent evolution and fate in the coming years. By exploring the possible parameter space of…

astro-ph.GA2016★ 7 cited

The G2+G2t complex as a fast and massive outflow?

A. Ballone, M. Schartmann, A. Burkert +8

Observations of the gas component of the cloud G2 in the Galactic Center have revealed its connection to a tail (G2t) lying on the same orbit. More recent studies indicate a connec…

astro-ph.GA2015★ 22 cited

3D adaptive mesh refinement simulations of the gas cloud G2 born within the disks of young stars in the Galactic Center

M. Schartmann, A. Ballone, A. Burkert +8

The dusty, ionized gas cloud G2 is currently passing the massive black hole in the Galactic Center at a distance of roughly 2400 Schwarzschild radii. We explore the possibility of…