The Mid-Infrared Imager Spectrometer Coronagraph (MISC)
for Origins Space Telescope (OST)

version 2018.10.01 (Itsuki Sakon)

MISC Team Members

(from Science and Technology Definition Team, Ex-Officio Non-Voting Members, Internation Ex-Officio Non-Voting Members)
Asantha Cooray (California, Irvine)
Deborah Padgett (GSFC)
Eric Nielsen (SETI Institute)
Itsuki Sakon (University of Tokyo) [Instrument lead]
Joaquin Vieira (Illinois, Urbana Champaign)
Margaret Meixner (STScI)
Kimberly Ennico Smith (NASA/AMES) [Science lead]
Tom Roellig (NASA/AMES) [Instrument lead]
Klaus pontoppidan (STScI)

(from LAM and related Institutes)
Denis Burgarella (Laboratoire d'Astrophysique de Marseille)
David Le Miqnant (Laboratoire d'Astrophysique de Marseille)
Frederic Zamkotsian (Laboratoire d'Astrophysique de Marseille)
(from NASA/AMES and related Institutes)
TBA

(from JAXA and related Institutes)
Keigo Enya (ISAS/JAXA)
Yuji Ikeda (Photocoding)
Taro Matsuo (Osaka University)
Naofumi Fujishiro (Teikyo University)
Olivier Guyon (Subaru Telescope/Astrobiology Center, NINS/Steward Observatory, University of Arizona)
Naoshi Murakami (Hokkaido University)
Jun Nishikawa (NAOJ)
Takayuki Kotani (NAOJ)
Yuki Sarugaku (University of Tokyo)
Aoi Takahashi (ISAS/JAXA)
and more

(from ...)


Basic Instrument Design Ideas

Case A (achieves most of the science objectives): A PIAA coronagraph (high throughput, high contrast) is compatible with this design. This design contains an IFU spectrometer which could be traded against the long slit concept. This concept achieves low resolution (R~300), medium resolution (R=1000-2000), and high resolution (R>10,000) spectroscopy. Wide-field Imager can also be used as a slit viewer when each mode of spectroscopy is carried out. There is freedom in the imager/spectrometer design for the lower resolution channel. All channels require both detector types.

Case B (less capable than Case A): Combines the coronagraph & normal imager-spectrometer. The baseline is a R=300-500 spectrometer with two grisms to cover wavelength. A R=1000-3000 variant is possible with more grisms in a filter wheel. This design contains an IFU spectrometer which could be traded against the long slit concept. This concept also achieves R>10,000 in a separate channel. All channels require both detector types.

Note: For both cases, we separate out a different channel for the transit spectroscopy science case (#14), with a concept that incorporates lessons learned from Spitzer measurements of secondary transit emission spectra.

Related Documents

-- Your further input is welcome --

1. Heritages of SPICA

[1] SPICA Coronagraph Instrument (SCI)
Enya, K., et al. 2011, "A high dynamic-range instrument for SPICA for coronagraphic observation of exoplanets and monitoring of transiting exoplanets", SPIE, 8146, 81460Q

[2] SPICA Mid-Infrared Camera and Spectrometer (MCS)
Kataza, H., et al. 2012, "Mid-infrared Camera and Spectrometer on board SPICA", SPIE, 8442, 84420Q
Kataza, H., et al. 2015, "Performance Estimation of the Mid-Infrared Camera and Spectrometer Aboard SPICA", Journal of Astronomical Instrumentation, 4, 1550001
Wada, T., et al. 2010, "Mid-InfRAred Camera w/o LEns (MIRACLE) for SPICA", SPIE, 7731, 77310U
Sakon, I., et al. 2010, "Conceptual design for the mid-infrared medium-resolution Echelle spectrometer (MIRMES) on SPICA Mission", SPIE, 7731, 77310Q
Sakon, I., et al. 2012, "Recent Progress in the Development of Mid-Infrared Medium Resolution Spectrometer (MRS) installed in SPICA/MCS", SPIE, 8442, 84423S
Kobayashi, N., et al. 2012, "Mid-infrared High-resolution Spectrograph for SPICA", SPIE, 7010, 710132
Sarugaku, Y., et al. 2012, "Development of CdZnTe immersion grating for spaceborne application", SPIE, 8442, 844257

2. Wave Front Control System

[1] Deformable Mirrors (MEMS-DM)
Enya, K., et al. 2009, "A Micro Electrical Mechanical Systems (MEMS)-based Cryogenic Deformable Mirror", PASP, 121, 260
Enya, K., et al. 2011, "A high dynamic-range instrument for SPICA for coronagraphic observation of exoplanets and monitoring of transiting exoplanets" SPIE, 8146, 81460Q
Takahashi, A., et al. 2017, (available soon)
Space Active/Adoptive Optics at Laboratoire D'Astrophysique de Marseille , "Deformable Mirrors; Research/Development and Characterization"

[2] Cryogenic Tip Tilt Mirrors (TTM)
Mitani, S., et al. 2014, "Precision pointing control for SPICA: risk mitigation phase study", SPIE, 9143, 47

[3] Tilting Micromirrors
Zamkotsian, F., et al. 2013, "Large Array of 2048 tilting micromirrors for astronomical spectroscopy: optical and cryogenic characterization" SPIE, 8977, 23



3. Coronagraphs

[1] PIAA Complex Mask Lyot Coronagraph (PIAACMC)
Guyon, O., et al. 2010, "HIGH PERFORMANCE PIAA CORONAGRAPHY WITH COMPLEX AMPLITUDE FOCAL PLANE MASKS", ApJS, 190, 220
Guyon, O., et al. 2014, "HIGH PERFORMANCE LYOT AND PIAA CORONAGRAPHY FOR ARBITRARILY SHAPED TELESCOPE APERTURES",ApJ, 780, 171

[2] Binary Pupil Mask Coronagraph (BPM)
Enya, K., et al. 2010, "A Binary Shaped Mask Coronagraph for a Segmented Pupil", PASJ, 62, 1407
Enya, K., et al. 2011, "A high dynamic-range instrument for SPICA for coronagraphic observation of exoplanets and monitoring of transiting exoplanets", SPIE, 8146, 81460Q
Enya, K., et al. 2012, "Comparative Study of Manufacturing Techniques for Coronagraphic Binary Pupil Masks: Masks on Substrates and Free-Standing Masks", PASJ, 64, 123
Haze, K., et al. 2012, "A laboratory experiment for a new free-standing pupil mask coronagraph", SPIE, 8442, 84425B
Haze, K., et al. 2015, "Experimental demonstration of binary shaped pupil mask coronagraphs for telescopes with obscured pupils", PASJ, 67, 28

[3] 8-Octa Phase Mask Coronagraph (8-OPM)
Murakami, N., et al. 2014, "Recent progress on phase-mask coronagraphy based on photonic- crystal technology", SPIE, 9143, 914334
Murakami, N., et al. 2016, "A three-layer eight-octant phase mask towards broadband high-contrast observations", SPIE, 9912, 99126G


4. Immersion Grating

[1] Immersion Grating for Mid-Infrared Instrument
Ikeda, Y., et al. 2010, "Fabrication and current optical performance of a large diamond-machined ZnSe immersion grating", SPIE, 7739, 77394G
Sarugaku, Y., et al. 2012, "Development of CdZnTe immersion grating for spaceborne application", SPIE, 8442, 844257
Sarugaku, Y., et al. 2016, "Cryogenic Performance of High-efficiency Germanium Immersion Grating",SPIE, 9906, 990637


5. Image Slicer

[1] Image Slicer for Mid-Infrared Instruments
Sakon, I., et al. 2013, "A design and trial production of the image slicer unit for the mid-infrared spectrograph", SPIE, 8860, 88600Z
Sakon, I., et al. 2014, "A trial production of the image slicer unit for next generation infrared instruments and the assembly of the evaluation system of the pseudo slit image quality", SPIE, 9143, 91434U
Sakon, I., et al. 2016, "A trial production of a large format image slicer unit for a possible future mid-infrared instrument on the TMT", SPIE, 9143, 91434U


6. Transit Spectrometer

[1] Transit Spectrometer studied for old SPICA mission
Enya, K., et al. 2011, "A high dynamic-range instrument for SPICA for coronagraphic observation of exoplanets and monitoring of transiting exoplanets", SPIE, 8146, 81460Q
Enya, K., et al. 2014, "Development of wideband spectral dispersers for exoplanetary science: comparative study of material, design, and fabrication", SPIE, 9193, 91931H


[2] Densified Pupil Spectrometer
Matsuo, T., et al. 2016, "A New Concept for Spectrophotometry of Exoplanets with Space-borne Telescopes", ApJ, 823, 139


7. Experiment Environment

[1] Prototype-Testbed for infrared optics and coronagraph (PINOCO)
Enya, K., et al. 2012, "Prototype-testbed for infrared optics and coronagraph (PINOCO)", SPIE, 8442, 84425C

8. Others

 MISC Volume