Subject: Future IR Instrumentation?

From: tharriso@nmsu.edu

Submitted: Thu, 21 Aug 1997 13:17:51 -0600 (MDT)

Message number: 42 (previous: 41, next: 43 up: Index)

Dear ARC IR Community:

Some of us (at NMSU) have been discussing what kind of future IR instrumentation
we would like to see on ARC. With the upcoming meeting at APO on such issues,
it might be a good time to collect viewpoints on this topic from the ARC 
community. If there is sufficient response, I will collect them together and 
present them at the September meeting. To get the ball rolling I will make the 
following comment/suggestion:

Given that GRIM is a reasonable imager, but a relatively inadequate
spectrograph, I propose that we think about building a stand-alone IR 
spectrograph. I think this instrument must be relatively simple so that it
can be robust, and tolerate the lack of dedicated on-sight instrument
scientist (i.e., the normal ARC mode!). Thus, I propose a simple two-grating
system giving R ~ 750, and R ~1500 type resolution. It would have several
different slits to suit the project and observing conditions. Since going to
wavelengths longer than 2.5 microns increases the difficulty of construction
(and expense), I suggest we limit its coverage to 1-2.6 microns. The only
additional demand I would make is that it have a slit viewing camera.

Post your responses here, or email me directly at: tharriso@nmsu.edu

Cheers,
Tom Harrison
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