First light with ALES: A 2-5 micron adaptive optics Integral Field Spectrograph for the LBT

Andrew J. Skemer, Philip Hinz, Manny Montoya, Michael F. Skrutskie, Jarron Leisenring, Oli Durney, Charles E. Woodward, John Wilson, Matt Nelson, Vanessa Bailey, Denis Defrere, Jordan Stone

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

19 Scopus citations

Abstract

Integral field spectrographs are an important technology for exoplanet imaging, due to their ability to take spectra in a high-contrast environment, and improve planet detection sensitivity through spectral differential imaging. ALES is the first integral field spectrograph capable of imaging exoplanets from 3-5 μm, and will extend our ability to characterize self-luminous exoplanets into a wavelength range where they peak in brightness. ALES is installed inside LBTI/LMIRcam on the Large Binocular Telescope, taking advantage of existing AO systems, camera optics, and a HAWAII-2RG detector. The new optics that comprise ALES are a Keplerian magnifier, a silicon lenslet array with diffraction suppressing pinholes, a direct vision prism, and calibration optics. All of these components are installed in filter wheels making ALES a completely modular design. ALES saw first light at the LBT in June 2015.

Original languageEnglish (US)
Title of host publicationTechniques and Instrumentation for Detection of Exoplanets VII
EditorsStuart Shaklan
PublisherSPIE
ISBN (Electronic)9781628417715
DOIs
StatePublished - Jan 1 2015
EventTechniques and Instrumentation for Detection of Exoplanets VII - San Diego, United States
Duration: Aug 10 2015Aug 13 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9605
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceTechniques and Instrumentation for Detection of Exoplanets VII
CountryUnited States
CitySan Diego
Period8/10/158/13/15

Keywords

  • Adaptive optics
  • exoplanet imaging
  • exoplanet instrumentation
  • integral field spectroscopy

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    Skemer, A. J., Hinz, P., Montoya, M., Skrutskie, M. F., Leisenring, J., Durney, O., Woodward, C. E., Wilson, J., Nelson, M., Bailey, V., Defrere, D., & Stone, J. (2015). First light with ALES: A 2-5 micron adaptive optics Integral Field Spectrograph for the LBT. In S. Shaklan (Ed.), Techniques and Instrumentation for Detection of Exoplanets VII [96051D] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9605). SPIE. https://doi.org/10.1117/12.2187284