NOAO Abstracts for SPIE Meeting in March
Phoenix: A Cryogenic High-Resolution
1-5 micron Infrared Spectrograph
Authors:
Kenneth H. Hinkle,
Randy Cuberly,
Neil Gaughan,
Julie Heynssens,
Richard Joyce,
Stephen Ridgway,
Paul Schmitt, and
Jorge E. Simmons
Abstract:
We describe a cryogenic, high-resolution spectrograph (Phoenix) for
the 1-5 
m region. Phoenix is
an echelle spectrograph of the
near-Littrow over-under configuration without cross dispersion. The
foreoptics include Lyot reimaging, discrete and circular
variable
order sorting filters, a selection of slits, and optics for post-slit
and Lyot imaging. The entire instrument is cooled to 50 K using
two closed cycle coolers. The detector is a Hughes-Santa
Barbara 512x1024 InSb array. Resolution of 65,000 has been obtained.
Throughput without slit losses (but including telescope losses) is
13% at 2.3 m. Recent results are discussed.
Phoenix is a
facility instrument of the National Optical Astronomy Observatories
and will be available at CTIO, KPNO, and Gemini.
[NOAO at the SPIE Meeting in
March]
National Optical Astronomy Observatories, 950 North Cherry Avenue,
P.O. Box 26732, Tucson, Arizona 85726 Phone: (520) 318-8000
Posted: 06Mar1998