An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis
@article{Boehle2016AnID, title={An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis}, author={A. Boehle and A. Ghez and R. Schodel and L. Meyer and S. Yelda and S. Albers and G. Martinez and E. Becklin and T. Do and J. Lu and K. Matthews and M. Morris and B. Sitarski and G. Witzel}, journal={arXiv: Astrophysics of Galaxies}, year={2016} }
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 doubles the time baseline for astrometry of faint stars orbiting Sgr A*, combining two decades of speckle imaging and adaptive optics data. Specifically, we improve our analysis of the speckle images by using information about a star's orbit from the deep adaptive optics data (2005 - 2013) to inform the search for the… CONTINUE READING
Figures and Tables from this paper
Paper Mentions
209 Citations
A geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty
- Physics
- 2019
- 125
- Highly Influenced
- PDF
The Galactic Center: Improved Relative Astrometry for Velocities, Accelerations, and Orbits near the Supermassive Black Hole
- Physics
- 2019
- 11
- PDF
Variability Timescale and Spectral Index of Sgr A* in the Near Infrared: Approximate Bayesian Computation Analysis of the Variability of the Closest Supermassive Black Hole.
- Medicine, Physics
- The Astrophysical journal
- 2018
- 35
- PDF
Twelve Years of Spectroscopic Monitoring in the Galactic Center: The Closest Look at S-stars near the Black Hole
- Physics
- 2017
- 44
- PDF
Investigating the Relativistic Motion of the Stars Near the Supermassive Black Hole in the Galactic Center
- Physics
- 2017
- 52
- Highly Influenced
- PDF
Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole
- Physics
- 2020
- 45
- PDF
New constraints on the structure of the nuclear stellar cluster of the Milky Way from star counts and MIR imaging.
- Physics
- 2020
- 7
- Highly Influenced
- PDF
References
SHOWING 1-10 OF 51 REFERENCES
MEASURING DISTANCE AND PROPERTIES OF THE MILKY WAY'S CENTRAL SUPERMASSIVE BLACK HOLE WITH STELLAR ORBITS
- Physics
- 2008
- 1,013
- PDF
High Proper-Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy
- Physics
- 1998
- 408
- PDF
THE ORBIT OF THE STAR S2 AROUND SGR A* FROM VERY LARGE TELESCOPE AND KECK DATA
- Physics
- 2009
- 200
- Highly Influential
- PDF
STELLAR POPULATIONS IN THE CENTRAL 0.5 pc OF THE GALAXY. I. A NEW METHOD FOR CONSTRUCTING LUMINOSITY FUNCTIONS AND SURFACE-DENSITY PROFILES
- Physics
- 2013
- 76
- PDF
IMPROVING GALACTIC CENTER ASTROMETRY BY REDUCING THE EFFECTS OF GEOMETRIC DISTORTION
- Physics
- 2010
- 175
- PDF
Monitoring stellar orbits around the Massive Black Hole in the Galactic Center
- Physics
- 2009
- 1,108
- Highly Influential
- PDF