Increasing the Scientific Return of Stellar Orbits at the Galactic Center

Details Increasing the Scientific Return of Stellar Orbits at the Galactic Center Increasing the Scientific Return of Stellar Orbits at the Galactic Center

2010-02-08

arxiv.org/abs/1002.1729v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

Proceedings article to be published in "The Galactic Center: A Window on the Nuclear Environment of Disk Galaxies", ed. Mark M

Scientific paper

We report a factor of $\sim$3 improvement in Keck Laser Guide Star Adaptive Optics (LGSAO) astrometric measurements of stars near the Galaxy's supermassive black hole (SMBH). By carrying out a systematic study of M92, we have produced a more accurate model for the camera's optical distortion. Updating our measurements with this model, and accounting for differential atmospheric refraction, we obtain estimates of the SMBH properties that are a factor of $\sim$2 more precise, and most notably, increase the likelihood that the black hole is at rest with respect to the nuclear star cluster. These improvements have also allowed us to extend the radius to which stellar orbital parameter estimates are possible by a factor of 2.

Affiliated with

Also associated with

No associations

Rating

Increasing the Scientific Return of Stellar Orbits at the Galactic Center does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Increasing the Scientific Return of Stellar Orbits at the Galactic Center, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Increasing the Scientific Return of Stellar Orbits at the Galactic Center will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-123908