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  How maser observations unravel the gas motions in the Galactic Center

Immer, K., Reid, M., Brunthaler, A., Menten, K., Zhang, Q., Lu, X., et al. (2018). How maser observations unravel the gas motions in the Galactic Center.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-CD1C-6 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-CD1D-5
Genre: Proceedings

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https://ui.adsabs.harvard.edu/abs/2018IAUS..336..176I (Any fulltext)
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 Creators:
Immer, K.1, Author
Reid, M.1, Author
Brunthaler, A.1, Author
Menten, K.1, Author
Zhang, Q.1, Author
Lu, X.1, Author
Mills, E. A. C.1, Author
Ginsburg, A.1, Author
Henshaw, J.1, Author
Longmore, S.1, Author
Kruijssen, D.1, Author
Pillai, T.1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

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Free keywords: masers instrumentation: interferometers astrometry Galaxy: center Galaxy: kinematics and dynamics radio lines: ISM
 Abstract: The Central Molecular Zone (CMZ), the inner 450 pc of our Galaxy, is an exceptional region where the volume and column densities, gas temperatures, velocity dispersions, etc. are much higher than in the Galactic plane. It has been suggested that the formation of stars and clusters in this area is related to the orbital dynamics of the gas. The complex kinematic structure of the molecular gas was revealed by spectral line observations. However, these results are limited to the line-of-sight-velocities. To fully understand the motions of the gas within the CMZ, we have to know its location in 6D space (3D location + 3D motion). Recent orbital models have tried to explain the inflow of gas towards and its kinematics within this region. With parallax and proper motion measurements of masers in the CMZ we can discriminate among these models and constrain how our Galactic Center is fed with gas.

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 Dates: 2018
 Publication Status: Issued
 Pages: 176-179
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
 Degree: -

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Title: Astrophysical Masers: Unlocking the Mysteries of the Universe
Place of Event: -
Start-/End Date: 2018

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