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3D AMR simulations of G2 as an outflow

Published online by Cambridge University Press:  09 February 2017

A. Ballone ,
M. Schartmann ,
A. Burkert ,
S. Gillessen ,
P.M. Plewa ,
O. Pfuhl ,
R. Genzel ,
F. Eisenhauer ,
T. Ott  and
E.M. George
...Show all authors
A. Ballone
Affiliation:
University Observatory Munich, Scheinerstraße 1, D-81679 München, Germany Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
M. Schartmann
Affiliation:
University Observatory Munich, Scheinerstraße 1, D-81679 München, Germany Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, Victoria 3122, Australia
A. Burkert
Affiliation:
University Observatory Munich, Scheinerstraße 1, D-81679 München, Germany Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany Max-Planck-Fellow
S. Gillessen
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
P.M. Plewa
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
O. Pfuhl
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
R. Genzel
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
F. Eisenhauer
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
T. Ott
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
E.M. George
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
M. Habibi
Affiliation:
Max-Planck-Institute for extraterrestrial Physics, Giessenbachstraße 1, D-85741 Garching bei München, Germany
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Abstract

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We study the evolution of G2 in a Compact Source Scenario, where G2 is the outflow from a low-mass central star moving on the observed orbit. This is done through 3D AMR simulations of the hydrodynamic interaction of G2 with the surrounding hot accretion flow. A comparison with observations is done by means of mock position-velocity (PV) diagrams. We found that a massive (Ṁw = 5× 10−7M⊙ yr−1) and slow (vw = 50 km s−1) outflow can reproduce G2’s properties. A faster outflow (vw = 400 km s−1) might also be able to explain the material that seems to follow G2 on the same orbit.

Keywords

accretionGalaxy: centerhydrodynamicsISM: cloudsISM: jets and outflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S322: The Multi-Messenger Astrophysics of the Galactic Centre , July 2016 , pp. 243 - 244
Copyright
Copyright © International Astronomical Union 2017 

References

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