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Weighing black holes using open-loop focus corrections for LGS-AO observations of galaxy nuclei at Gemini Observatory

Abstract:

We present observations of early-type galaxies with laser guide star adaptive optics (LGS AO) obtained at Gemini North telescope using the NIFS integral field unit (IFU). We employ an innovative technique where the focus compensation due to the changing distance to the sodium layer is made 'open loop', allowing the extended galaxy nucleus to be used only for tip-tilt correction. The purpose of these observations is to determine high spatial resolution stellar kinematics within the nuclei of t...

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Publisher copy:
10.1117/12.856572

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
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Journal:
Proceedings of SPIE - The International Society for Optical Engineering
Volume:
7736
Issue:
PART 1
Publication date:
2010-01-01
DOI:
ISSN:
0277-786X
Source identifiers:
189341
Language:
English
Keywords:
Pubs id:
pubs:189341
UUID:
uuid:03d715dc-976f-4bc8-91de-bee10b66822a
Local pid:
pubs:189341
Deposit date:
2012-12-19

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