Advertisement

Stars Close to the Massive Black Hole at the Center of the Milky Way

  • Nelly Mouawad
  • Andreas Eckart
  • Susanne Pfalzner
  • Christian Straubmeier
  • Rainer Spurzem
  • Reinhard Genzel
  • Thomas Ott
  • Rainer Schödel
Chapter
Part of the Lecture Notes in Physics book series (LNP, volume 626)

Abstract

Recent measurements of stellar velocities ([5], [7]) and variable X-ray emission [3] near the center of the Milky Way have already provided the strongest case for the presence of a super-massive black hole in our Galaxy. Information on the enclosed mass and stellar number density counts, in the central stellar cluster of the Galaxy, now allows to derive realistic potentials to study stellar orbits. We present the results of calculations using a 4 th -order Hermite integrator. They provide valuable additional information on the three dimensional distribution and dynamics of the He-Stars. We also discuss the importance of Newtonian peri-astron shifts for stellar orbits in the central cluster and how future observations with infrared interferometers (LBT, VLTI, Keck) [6] will help to improve our understanding of the dynamics and distribution of the stars in this region.

Keywords

Plum Model Stellar Velocity Helium Star Early Type Star Stellar Orbit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Nelly Mouawad
    • 1
  • Andreas Eckart
    • 1
  • Susanne Pfalzner
    • 1
  • Christian Straubmeier
    • 1
  • Rainer Spurzem
    • 2
  • Reinhard Genzel
    • 3
  • Thomas Ott
    • 3
  • Rainer Schödel
    • 3
  1. 1.I. Physikalisches InstitutUniversity of CologneCologneGermany
  2. 2.Astronomisches Rechen-InstitutHeidelbergGermany
  3. 3.Max-Planck-Institut für extraterrestrische PhysikGarchingGermany

Personalised recommendations