November 20, 2018: Most content in the UA Campus Repository is not accessible using the search/browse functions due to a performance bug; we are actively working to resolve this issue. If you are looking for content you know is in the repository, but cannot get to it, please email us at repository@u.library.arizona.edu with your questions and we'll make sure to get the content to you.

Precision astrometry with adaptive optics: constraints on the mutual orbit of Luhman 16AB from GeMS

Thumbnail
Name:
99095T.pdf
Size:
1.773Mb
Format:
PDF
Description:
FInal Published Version
Download
Author
Ammons, S. Mark
Garcia, E. Victor
Salama, Maissa
Neichel, Benoit
Lu, Jessica
Marois, Christian
Macintosh, Bruce
Savransky, Dmitry
Bendek, Eduardo
Guyon, Olivier
Marin, Eduardo
Garrel, Vincent
Sivo, Gaetano
Affiliation
Univ Arizona
Issue Date
2016-09-02
Keywords
astrometry
adaptive optics
multi-conjugate
tomography
M92
NGC 1851
brown dwarf

Metadata
Show full item record
Publisher
SPIE-INT SOC OPTICAL ENGINEERING
Citation
S. Mark Ammons ; E. Victor Garcia ; Maissa Salama ; Benoit Neichel ; Jessica Lu ; Christian Marois ; Bruce Macintosh ; Dmitry Savransky ; Eduardo Bendek ; Olivier Guyon ; Eduardo Marin ; Vincent Garrel and Gaetano Sivo " Precision astrometry with adaptive optics: constraints on the mutual orbit of Luhman 16AB from GeMS ", Proc. SPIE 9909, Adaptive Optics Systems V, 99095T (September 2, 2016); doi:10.1117/12.2233775; http://dx.doi.org/10.1117/12.2233775
Journal
ADAPTIVE OPTICS SYSTEMS V
Rights
© 2016 SPIE
Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
Abstract
ELTs equipped with MCAO systems will be powerful astrometric tools in the next two decades. With sparse-field precisions exceeding 30 uas for V > 18, the ELTs will surpass even GAIA's per-epoch precision for faint stars (V > 12). We present results from an ongoing astrometry program with Gemini GeMS and discuss synergies with WFIRST and GAIA. First, we present a fit to the relative orbit of the individual L/T components of Luhman16 AB, the nearest brown dwarf binary known. Exploiting GeMS' wide field of view to image reference stars, we are able to track the relative motion to better than 0.2 mas. We find that a mutual Keplerian orbit with no perturbing planets fits the binary separation to within the measurement errors, ruling out companions down to 14 earth masses for certain orbits and periods.
ISSN
0277-786X
DOI
10.1117/12.2233775
Version
Final published version
Additional Links
http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2233775
Collections