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  SWAG Water Masers in the Galactic Center

Ott, J., Krieger, N., Rickert, M., Meier, D., Ginsburg, A., Yusef-Zadeh, F., et al. (2018). SWAG Water Masers in the Galactic Center.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-CBDE-D Version Permalink: https://hdl.handle.net/21.11116/0000-0005-CBDF-C
Genre: Proceedings

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Locator:
https://ui.adsabs.harvard.edu/abs/2018IAUS..336..172O (Any fulltext)
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 Creators:
Ott, Jürgen1, Author
Krieger, Nico1, Author
Rickert, Matthew1, Author
Meier, David1, Author
Ginsburg, Adam1, Author
Yusef-Zadeh, Farhad1, Author
Team, SWAG1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

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Free keywords: masers Galaxy: center radio lines: stars Astrophysics - Astrophysics of Galaxies
 Abstract: The Galactic Center contains large amounts of molecular and ionized gas as well as a plethora of energetic objects. Water masers are an extinction-insensitive probe for star formation and thus ideal for studies of star formation stages in this highly obscured region. With the Australia Telescope Compact Array, we observed 22 GHz water masers in the entire Central Molecular Zone with sub-parsec resolution as part of the large SWAG survey: ``Survey of Water and Ammonia in the Galactic Center''. We detect of order 600 22 GHz masers with isotropic luminosities down to ~10-7 L☉. Masers with luminosities of >~10-6 L☉ are likely associated with young stellar objects. They appear to be close to molecular gas streamers and may be due to star formation events that are triggered at pericenter passages near Sgr A*. Weaker masers are more widely distributed and frequently show double line features, a tell-tale sign for an origin in evolved star envelopes.

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 Dates: 2018
 Publication Status: Issued
 Pages: 172-175
 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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