Gas cloud G2 can illuminate the black hole population near the galactic center.

@article{Bartos2013GasCG,
  title={Gas cloud G2 can illuminate the black hole population near the galactic center.},
  author={Imre Bartos and Zolt{\'a}n Haiman and Bence Kocsis and Sz. M{\'a}rka},
  journal={Physical review letters},
  year={2013},
  volume={110 22},
  pages={
          221102
        }
}
Galactic nuclei are expected to be densely populated with stellar- and intermediate-mass black holes. Exploring this population will have important consequences for the observation prospects of gravitational waves as well as understanding galactic evolution. The gas cloud G2 currently approaching Sgr A* provides an unprecedented opportunity to probe the black hole and neutron star population of the Galactic nucleus. We examine the possibility of a G2-cloud-black-hole encounter and its… Expand
Observations of the gas cloud G2 in the Galactic center
Abstract In 2011, we discovered a compact gas cloud (“G2”) with roughly three Earth masses that is falling on a near-radial orbit toward the massive black hole in the Galactic center. The orbit isExpand
Rapid and Bright Stellar-mass Binary Black Hole Mergers in Active Galactic Nuclei
The Laser Interferometer Gravitational-Wave Observatory, LIGO, found direct evidence for double black hole binaries emitting gravitational waves. Galactic nuclei are expected to harbor the densestExpand
Colliding with G2 near the Galactic Centre: a geometrical approach
The object G2 will pass within ∼100 au from Sgr A* in 2014. Due to its very short periapse, the study of the dynamical evolution of this object in the short-term future may offer some insight intoExpand
Black Hole Disks in Galactic Nuclei.
TLDR
It is found that the massive stars and stellar mass black holes form a warped disk, while low mass stars resemble a spherical distribution with a possible net rotation, which explains the origin of the clockwise disk in the Galactic center and predicts a population of black holes embedded within this structure. Expand
KECK OBSERVATIONS OF THE GALACTIC CENTER SOURCE G2: GAS CLOUD OR STAR?
We present new observations and analysis of G2—the intriguing red emission-line object which is quickly approaching the Galaxy's central black hole. The observations were obtained with the laserExpand
The Galactic Center region imaged with MAGIC and variability searches during the G2 pericenter passage
The Major Atmospheric Gamma Imaging Cherenkov (MAGIC) telescopes have observed the Galactic Center during the past four years. Due to its location in the northern hemisphere, MAGIC observes the GC atExpand
Physical laboratory at the center of the Galaxy
We review the physical processes that occur at the center of the Galaxy and that are related to the supermassive black hole Sgr A* residing there. The discovery of high-velocity S0 stars orbiting SgrExpand
Observations of Sagittarius A* during the pericenter passage of the G2 object with MAGIC
Context. We present the results of a multi-year monitoring campaign of the Galactic center (GC) with the MAGIC telescopes. These observations were primarily motivated by reports that a putative gasExpand
Sculpting the Stellar Cusp in the Galactic Center
Observations of the innermost parsec surrounding Sgr A*—the supermassive black hole in the center of our Galaxy—have revealed a diversity of structures whose existence and characteristics apparentlyExpand
Extreme-mass-ratio bursts from the Galactic Centre
An extreme-mass-ratio burst (EMRB) is a gravitational wave signal emitted when a compact object passes through periapsis on a highly eccentric orbit about a much more massive body, in our case aExpand
...
1
2
...