L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam

D. Defrère, O. Absil, Philip M Hinz, J. Kuhn, D. Mawet, B. Mennesson, A. Skemer, K. Wallace, V. Bailey, E. Downey, C. Delacroix, O. Durney, P. Forsberg, C. Gomez, S. Habraken, W. F. Hoffmann, M. Karlsson, M. Kenworthy, J. Leisenring, M. MontoyaL. Pueyo, M. Skrutskie, J. Surdej

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)

Abstract

We present the first observations obtained with the L'-band AGPM vortex coronagraph recently installed on LBTI/LMIRCam. The AGPM (Annular Groove Phase Mask) is a vector vortex coronagraph made from diamond subwavelength gratings. It is designed to improve the sensitivity and dynamic range of high-resolution imaging at very small inner working angles, down to 0.09 arcseconds in the case of LBTI/LMIRCam in the L' band. During the first hours on sky, we observed the young A5V star HR8799 with the goal to demonstrate the AGPM performance and assess its relevance for the ongoing LBTI planet survey (LEECH). Preliminary analyses of the data reveal the four known planets clearly at high SNR and provide unprecedented sensitivity limits in the inner planetary system (down to the diffraction limit of 0.09 arcseconds).

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9148
ISBN (Print)9780819496164
DOIs
StatePublished - 2014
EventAdaptive Optics Systems IV - Montreal, Canada
Duration: Jun 22 2014Jun 27 2014

Other

OtherAdaptive Optics Systems IV
CountryCanada
CityMontreal
Period6/22/146/27/14

Fingerprint

Coronagraph
coronagraphs
ultrahigh frequencies
grooves
Mask
Masks
Vortex
Vortex flow
masks
Planets
vortices
planets
High Resolution Imaging
Diamond
planetary systems
sensitivity
Dynamic Range
Strombus or kite or diamond
Gratings
Stars

Keywords

  • Adaptive Optics
  • coronagraphy
  • HR8799
  • LBT
  • vortex phase mask

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Defrère, D., Absil, O., Hinz, P. M., Kuhn, J., Mawet, D., Mennesson, B., ... Surdej, J. (2014). L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9148). [91483X] SPIE. https://doi.org/10.1117/12.2057205

L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam. / Defrère, D.; Absil, O.; Hinz, Philip M; Kuhn, J.; Mawet, D.; Mennesson, B.; Skemer, A.; Wallace, K.; Bailey, V.; Downey, E.; Delacroix, C.; Durney, O.; Forsberg, P.; Gomez, C.; Habraken, S.; Hoffmann, W. F.; Karlsson, M.; Kenworthy, M.; Leisenring, J.; Montoya, M.; Pueyo, L.; Skrutskie, M.; Surdej, J.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9148 SPIE, 2014. 91483X.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Defrère, D, Absil, O, Hinz, PM, Kuhn, J, Mawet, D, Mennesson, B, Skemer, A, Wallace, K, Bailey, V, Downey, E, Delacroix, C, Durney, O, Forsberg, P, Gomez, C, Habraken, S, Hoffmann, WF, Karlsson, M, Kenworthy, M, Leisenring, J, Montoya, M, Pueyo, L, Skrutskie, M & Surdej, J 2014, L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 9148, 91483X, SPIE, Adaptive Optics Systems IV, Montreal, Canada, 6/22/14. https://doi.org/10.1117/12.2057205
Defrère D, Absil O, Hinz PM, Kuhn J, Mawet D, Mennesson B et al. L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9148. SPIE. 2014. 91483X https://doi.org/10.1117/12.2057205
Defrère, D. ; Absil, O. ; Hinz, Philip M ; Kuhn, J. ; Mawet, D. ; Mennesson, B. ; Skemer, A. ; Wallace, K. ; Bailey, V. ; Downey, E. ; Delacroix, C. ; Durney, O. ; Forsberg, P. ; Gomez, C. ; Habraken, S. ; Hoffmann, W. F. ; Karlsson, M. ; Kenworthy, M. ; Leisenring, J. ; Montoya, M. ; Pueyo, L. ; Skrutskie, M. ; Surdej, J. / L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9148 SPIE, 2014.
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