THE GALACTIC CENTER CLOUD G2 AND ITS GAS STREAMER

@article{Pfuhl2014THEGC,
  title={THE GALACTIC CENTER CLOUD G2 AND ITS GAS STREAMER},
  author={Oliver Pfuhl and Stefan Gillessen and Frank Eisenhauer and Reinhard Genzel and Philipp M. Plewa and Thomas Ott and Alessandro Ballone and Marc Schartmann and Andreas Burkert and Tobias Fritz and Re’em Sari and Elad Steinberg and Ann-Marie Madigan},
  journal={The Astrophysical Journal},
  year={2014},
  volume={798}
}
We present new, deep near-infrared SINFONI @ VLT integral field spectroscopy of the gas cloud G2 in the Galactic Center, from late 2013 August, 2014 April, and 2014 July. G2 is visible in recombination line emission. The spatially resolved kinematic data track the ongoing tidal disruption. The cloud reached minimum distance to the MBH of 1950 Schwarzschild radii. As expected for an observation near the pericenter passage, roughly half of the gas in 2014 is found at the redshifted, pre… 

The Post-pericenter Evolution of the Galactic Center Source G2

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We report new observations of the Galactic Center source G2 from the W. M. Keck Observatory. G2 is a dusty red object associated with gas that shows tidal interactions as it nears its closest

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TLDR
Observations of four additional G objects, all lying within 0.04 parsecs of the black hole and forming a class that is probably unique to this environment are reported.

MONITORING THE DUSTY S-CLUSTER OBJECT (DSO/G2) ON ITS ORBIT TOWARD THE GALACTIC CENTER BLACK HOLE

We analyze and report in detail new near-infrared (1.45–2.45 μm) observations of the Dusty S-cluster Object (DSO/G2) during its approach to the black hole at the center of the Galaxy that were

The Post-periapsis Evolution of Galactic Center Source G1: The Second Case of a Resolved Tidal Interaction with a Supermassive Black Hole

We present new adaptive optics (AO) imaging and spectroscopic measurements of Galactic center source G1 from W. M. Keck Observatory. Our goal is to understand its nature and relationship to G2, which

No asymmetric outflows from Sagittarius A* during the pericenter passage of the gas cloud G2

The gas cloud G2 falling toward Sagittarius A* (Sgr A*), the supermassive black hole at the center of the Milky Way, is supposed to provide valuable information on the physics of accretion flows and

Probing the gas density in our Galactic Centre: moving mesh simulations of G2

The G2 object has recently passed its pericenter passage in our Galactic Center. While the $Br_\gamma$ emission shows clear signs of tidal interaction, the change in the observed luminosity is only

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The massive black hole in our galactic center, Sgr A*, accretes only a small fraction of the gas available at its Bondi radius. The physical processes determining this accretion rate remain unknown,
...

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