Tmt night

Overview of Instrument Capabilities

Instrument

Timescale

Field of view/ slit length/ pixel scale

Spectral resolution

Wavelength range (µm)

Sensitivity

InfraRed Imager and Spectrometer (IRIS)

First light

IFU 0.45x0.51”@0.004”/pix to 2.25”x4.4”@0.050”/pix

4000-8000

0.84-2.4

texp=900s, S/N=10 per channel, H=25.8, K=24.2

Imager 34”x34”@0.004”/pix

J, H, K+ narrow bands

texp=3600s, S/N=100 H=26.2, K=25.6

Wide Field Optical Spectrometer (WFOS)

First light (downselect phase till 10/18)

~40 arcmin2, ~200 targets TBD

3500-5000 TBD

0.31-1.1 TBD

texp=5x900s, S/N=100 per element, R=5000 V=20.5

InfraRed Multi-slit Spectrometer (IRMS)

2nd Generation

2’ diameter (up to 46 deployable slits)

4660

0.95-2.45

texp=1000s, S/N=10 per element, R=3270 Y=23.4, J=23.0, H=22.7, K=21.2

bMICHI - mid-IR AO Fed spectrometer imager IFU

(MIRES)

2nd Generation

Imager: (L&M bands) 24.4x24.4”@0.011”/pix

(N band) 28.1x28.1”@0.028”/pix

10-100

Imager & spectrometer

3.4-14 (L, M, N)

(16-25 Q TBD)

 

0.1mJy@8µm gives 10s in 1hr

Spectrometer: low res 28.1” length, high res 2” length

600 & 120,000

3x10-19 W/m2@8µm gives 10s in 1hr

IFU (7.3-13.8 N only) 5x2”

1000

7.3-13.8

 

Planetary System Instrument (PSI)

Contrast 10-8@2λ/d (max 10-9)

2nd Generation

~1” outer working angle, ~10mas inner working angle

IFU  ~5000

 

1-2.5

 

Imager <100

 

Multi-IFU imaging spectrometer (IRMOS)

2nd Generation

>ten 3” IFUs over >2' diameter field

2000-10,000

0.8-2.5

texp=1 hr, S/N=10 per element, R=2000 Y=23.6, J=22.5, H=24.9, K=24.0

Near-IR AO-fed Echelle Spectrometer (NIRES)

2nd Generation

2” slit

20000–100000

1-5

texp=1 hr, S/N=100 per element, R=50,000 Y=17.4, J=17.2, H=17.0, K=16.6

High-Resolution Optical Spectrometer (HROS)

2nd Generation

5”slit

50,000 to 90,000

0.31-1.1 (1.3 goal)

texp=6 hr, S/N=100 per channel@R=100,000, M=18.9

Astronomical Rapid Imager and Spectropolarimetric Explorer (ARISE)

2nd Generation

Imaging 5’x5’ @0.1”/pixel
IFU @0.1”/pixel
10 Hz full frame
100 Hz windowed

Broadband to >15000

0.31-4.8