History of Observing(No. 14)

• History
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• Go to Observing.
  • 1 (2022-10-04 (Tue) 06:55:50)
  • 2 (2022-10-04 (Tue) 08:00:13)
  • 3 (2022-10-06 (Thu) 10:22:04)
  • 4 (2022-10-06 (Thu) 10:26:05)
  • 5 (2022-10-12 (Wed) 11:26:09)
  • 6 (2022-12-02 (Fri) 10:55:05)
  • 7 (2022-12-23 (Fri) 06:37:29)
  • 8 (2022-12-25 (Sun) 12:14:41)
  • 9 (2022-12-25 (Sun) 17:12:21)
  • 10 (2022-12-25 (Sun) 23:14:58)
  • 11 (2022-12-27 (Tue) 00:22:04)
  • 12 (2023-01-01 (Sun) 01:38:58)
  • 13 (2023-01-01 (Sun) 09:35:48)
  • 14 (2023-01-03 (Tue) 00:51:38)
  • 15 (2023-01-03 (Tue) 06:13:17)

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Notes for S23B†

• Call for proposal may not be issued.
  Since the TAO 6.5-m telescope is under construction, the call for proposal for S23B may not be issued depending on the progress of the telescope and observatory.

• Shared-risk observation.
  MIMIZUKU is currently in the evaluation phase. The specifications described here are expected values and can change based on the evaluation. The performances described here may not be achieved. You may propose an observation, but please note that the observation will be conducted as a shared-risk policy.

• Diamond window used for the entrance window.
  A diamond window is installed this semester. Observations in the 30-um band are available, but instead, sensitivities in the L and M bands become very low.

Introduction†

The Mid-Infrared Multi-field Imager for gaZing at the UnKnown Universe (MIMIZUKU) is the first-generation (mid-)infrared instrument on the TAO telescope that enables imaging and low-resolution spectroscopic observations in a wavelength range of 1-38 microns. The wide wavelength coverage is achieved by having three optical channels, NIR, MIR-S, and MIR-L, covering 1-5.3, 7-26, and 24-38 microns, respectively. MIMIZUKU has a unique opto-mechanical system called a "field stacker" that enables simultaneous observations of target and reference objects within a distance of less than 25 arcmin. This feature improves the accuracy and reliability of photometric and spectroscopic data. The overview of TAO/MIMIZUKU is also summarized in the fact sheet linked below.

• Fact Sheet

Entrance window†

For the entrance window of the MIMIZUKU optics, KBr window and diamond window are available. This semester, a diamond window is equipped. The diamond window has absorption bands in the L and M bands, and the sensitivity in these bands is not good.

NIR†

The NIR channel has a HAWAII-1RG (HgCdTe 1k-format) array with a cut-off wavelength of 5.3 microns and covers 1-5.3 microns. The atmospheric transmittance and the wavelength coverage of each observing mode are shown below.

Basic parameters†

Imaging†

• Available filters, saturation levels, and sensitivities

Spectroscopy†

• Available modes, saturation levels, and sensitivities

MIR-S†

The MIR-S channel has an Aquarius array (Si:As 1k-format) array and covers 7-26 microns. The atmospheric transmittance and the wavelength coverage of each observing mode are shown below.

Basic parameters†

Imaging†

• Available filters, saturation levels, and sensitivities

Spectroscopy†

• Available modes, saturation levels, and sensitivities

MIR-L†

The MIR-L channel has a 128px-format Si:Sb array and covers 24-38 microns.

Basic parameters†

Imaging†

• Available filters, saturation levels, and sensitivities

Spectroscopy†

Currently, not available.

Field Stacker†

(to be updated soon)