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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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Externe Referenzen

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externe Referenz:
https://ui.adsabs.harvard.edu/abs/2018IAUS..336..172O (beliebiger Volltext)
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Urheber

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 Urheber:
Ott, Jürgen1, Autor
Krieger, Nico1, Autor
Rickert, Matthew1, Autor
Meier, David1, Autor
Ginsburg, Adam1, Autor
Yusef-Zadeh, Farhad1, Autor
Team, SWAG1, Autor
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

Inhalt

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Schlagwörter: masers Galaxy: center radio lines: stars Astrophysics - Astrophysics of Galaxies
 Zusammenfassung: 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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 Datum: 2018
 Publikationsstatus: Erschienen
 Seiten: 172-175
 Ort, Verlag, Ausgabe: -
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Veranstaltung

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Titel: Astrophysical Masers: Unlocking the Mysteries of the Universe
Veranstaltungsort: -
Start-/Enddatum: 2018

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