288 citations · 2.3k across the 23 of their papers we have counts for
25 papers
The Post-Periapse Evolution of Galactic Center Source G1: The second case of a resolved tidal interaction with a supermassive black hole
Gunther Witzel, Breann. N. Sitarski, Andrea M. Ghez +13
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 relati…
An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis
A. Boehle, A. M. Ghez, R. Schödel +11
We present new, more precise measurements of the mass and distance of our Galaxy's central supermassive black hole, Sgr A*. These results stem from a new analysis that more than do…
Thirty Meter Telescope International Observatory Detailed Science Case 2024
Warren Skidmore, Bob Kirshner, David Andersen +168
The Thirty Meter Telescope (TMT) International Observatory (TIO) will be a revolutionary leap forward in astronomical observing capabilities, enabling us to address some of the mos…
The nuclear cluster of the Milky Way: Our primary testbed for the interaction of a dense star cluster with a massive black hole
R. Schödel, A. Feldmeier, N. Neumayer +2
This article intends to provide a concise overview, from an observational point-of-view, of the current state of our knowledge of the most relevant properties of the Milky Way's nu…
Detection of Galactic Center source G2 at 3.8 m during periapse passage
Gunther Witzel, Andrea M. Ghez, Mark R. Morris +14
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…
The Intrinsic Two-Dimensional Size of Sagittarius A*
Geoffrey C. Bower, Sera Markoff, Andreas Brunthaler +9
We report the detection of the two-dimensional structure of the radio source associated with the Galactic Center black hole, Sagittarius A*, obtained from Very Long Baseline Array…