288 citations · 1.4k across the 23 of their papers we have counts for
10 papers · 1 filter
A Spatially-Resolved Survey of Distant Quasar Host Galaxies: I. Dynamics of galactic outflows
Andrey Vayner, Shelley A. Wright, Norman Murray +6
We present observations of ionized gas outflows in eleven z radio-loud quasar host galaxies. Data was taken with the integral field spectrograph (IFS) OSIRIS and the a…
A Spatially-Resolved Survey of Distant Quasar Host Galaxies: II. Photoionization and Kinematics of the ISM
Andrey Vayner, Shelley A. Wright, Norman Murray +6
We present detailed observations of photoionization conditions and galaxy kinematics in eleven z radio-loud quasar host galaxies. Data was taken with OSIRIS integral fi…
Widespread Shocks in the Nucleus of NGC 404 Revealed by Near-infrared Integral Field Spectroscopy
A. Boehle, J. E. Larkin, L. Armus +1
We present high spatial resolution, integral field spectrograph (IFS) observations of the nearby LINER (low ionization nuclear emission line region) galaxy NGC 404 at 1.25 m (J…
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…
Testing the gravitational theory with short-period stars around our Galactic Center
A. Hees, A. M. Ghez, T. Do +19
Motion of short-period stars orbiting the supermassive black hole in our Galactic Center has been monitored for more than 20 years. These observations are currently offering a new…
Testing General Relativity with stellar orbits around the supermassive black hole in our Galactic center
A. Hees, T. Do, A. M. Ghez +14
In this Letter, we demonstrate that short-period stars orbiting around the supermassive black hole in our Galactic Center can successfully be used to probe the gravitational theory…
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…
The Keplerian orbit of G2
L. Meyer, A. M. Ghez, G. Witzel +8
We give an update of the observations and analysis of G2 - the gaseous red emission-line object that is on a very eccentric orbit around the Galaxy's central black hole and predict…
Keck Observations of the Galactic Center Source G2: Gas Cloud or Star?
K. Phifer, T. Do, L. Meyer +8
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 obtaine…
The Shortest Known Period Star Orbiting our Galaxy's Supermassive Black Hole
L. Meyer, A. M. Ghez, R. Schoedel +7
Stars with short orbital periods at the center of our galaxy offer a powerful and unique probe of a supermassive black hole. Over the past 17 years, the W. M. Keck Observatory has…