Figure 2 from NULLING DATA REDUCTION AND ON-SKY PERFORMANCE OF THE LARGE BINOCULAR TELESCOPE INTERFEROMETER

Image Details

View Article Bookmark & Share

Choose export citation format:

Export Citation

Hi-Resolution Export to PDF PPT Format

NULLING DATA REDUCTION AND ON-SKY PERFORMANCE OF THE LARGE BINOCULAR TELESCOPE INTERFEROMETER

Authors: D. Defrère, P. M. Hinz, B. Mennesson, W. F. Hoffmann, R. Millan-Gabet, A. J. Skemer, V. Bailey, W. C. Danchi, E. C. Downey, O. Durney, P. Grenz, J. M. Hill, T. J. McMahon, M. Montoya, E. Spalding, A. Vaz, O. Absil, P. Arbo, H. Bailey, G. Brusa, G. Bryden, S. Esposito, A. Gaspar, C. A. Haniff, G. M. Kennedy, J. M. Leisenring, L. Marion, M. Nowak, E. Pinna, K. Powell, A. Puglisi, G. Rieke, A. Roberge, E. Serabyn, R. Sosa, K. Stapeldfeldt, K. Su, A. J. Weinberger, and M. C. Wyatt

2016 The Astrophysical Journal 824 66.

Provider: AAS Journals

Caption: Figure 2.

Conceptual schematic of the nulling and PHASECam beam combination. Beam combination is done in the pupil plane on a 50/50 beamsplitter (BS), which can be translated to equalize the pathlengths between the two sides of the interferometer. To achieve an achromatic suppression of light over a sufficiently large bandwidth (8–13 μm), a compensator window (CW) with a suitable thickness of dielectric is introduced in one beam. Both outputs of the interferometer are directed to the near-infrared phase sensor (PHASECam), while one output is reflected to the NOMIC science detector with a short-pass dichroic. Note that this sketch does not show several-fold mirrors and biconics. The complete diagram can be found in Hinz et al. (2008).

Other Images in This Article

Copyright and Terms & Conditions