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AMBER/VLTI Snapshot Survey on Circumstellar Environments

Published online by Cambridge University Press:  23 January 2015

Th. Rivinius ,
W.J. de Wit ,
Z. Demers ,
A. Quirrenbach  and
the VLTI Science Operations Team
Th. Rivinius
Affiliation:
ESO - European Organisation for Astronomical Research in the Southern Hemisphere, Chile email: triviniu@eso.org
W.J. de Wit
Affiliation:
ESO - European Organisation for Astronomical Research in the Southern Hemisphere, Chile email: triviniu@eso.org
Z. Demers
Affiliation:
Department of Physics and Astronomy, The University of Western Ontario, London, Canada Landessternwarte Königstuhl, D-69117, Heidelberg, Germany
A. Quirrenbach
Affiliation:
Landessternwarte Königstuhl, D-69117, Heidelberg, Germany
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Abstract

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OHANA is an interferometric snapshot survey of the gaseous circumstellar environments of hot stars, carried out by the VLTI group at the Paranal observatory. It aims to characterize the mass-loss dynamics (winds/disks) at unexplored spatial scales for many stars. The survey employs the unique combination of AMBER's high spectral resolution with the unmatched spatial resolution provided by the VLTI. Because of the spatially unresolved central OBA-type star, with roughly neutral colour terms, their gaseous environments are among the easiest objects to be observed with AMBER, yet the extent and kinematics of the line emission regions are of high astrophysical interest.

Keywords

stars: windsoutflowscircumstellar matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry , June 2014 , pp. 297 - 300
Copyright
Copyright © International Astronomical Union 2015 

References

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