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| MiniMo |
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| Hydra |
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DensePak
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DensePak is a fiber optics bundle used
for integral field spectroscopy at the
"WIYN" port. It consists of an array of
91 "red" optimized 300 micron diameter
fibers and is mounted on the Indiana
echelle spectrograph adapter head (WIFOE)
which provides a pellical for viewing
the fiber array. The fiber cable feeds
the Bench Spectrograph that is used with
the Hydra multi-object spectrograph and
can be used in any of the spectrograph
configurations.
Note: DensePak is currently unavailable. |
Documentation
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DensePak Users Manual
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SparsePak
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SparsePak is a sparsely packed fiber
optics bundle with nearly-integral
core that has a special fiber geometry
designed to optimize performance for
the specific scientific goal of studying
the spatial distribution of the internal
motions of gas and stars in nearby
galaxies, but is also useful in general
for the study of galactic and extra-
galactic nebulae. SparsePak mounts into
WIFOE, just as Densepak does. As such,
Sparsepak is operated in a manner
essentially identical to DensePak. |
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SparsePak Information
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DensePak Users Manual
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| WIYN Tip-Tilt Module (WTTM) |
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The WIYN Tip-Tilt Module is an optical and near-IR re-imaging
system that utilizes fast tip-tilt compensation. As a general
rule, WTTM will provide FWHM improvements of 10-15% (R- and
I-bands). The f/# for the WTTM is 7.43 which provides a field
of view of 3.84 x 4.69 arcminutes at a plate scale of 0.1125
arcseconds per 13.5µm pixel. The WTTM is attached to the WIYN
Instrument Adapter System (IAS) at the Nasmyth focus. Changing
between the WTTM and the MiniMosaic imager is accomplished in
approximately 30 seconds by moving a pick-off mirror.
Note: WTTM is currently unavailable. |
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Adaptive Optics
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WTTM Users Manual (HTML)
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WTTM Users Manual (PDF)
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WTTM Commissioning Report
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OPTIC |
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The Orthogonal Parallel Transfer Imaging Camera consists of 2 Lincoln
Lab CCID28 2K x 4K chips mounted side by side in a dewar, so the
imager is roughly 4K x 4K altogether. The pixels are 15 µm, and subtend
about 0.14".
OPTIC is a visiting instrument. Scientists wishing to use OPTIC should check it's availability each semester. |
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OPTIC Users Manual (PDF)
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OPTIC Reduction Notes
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| One Degree Imager (ODI)
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The One Degree Imager (ODI) is the flagship of WIYN's new instrument initiatives. ODI will utilize
both WIYN's one degree field of view and excellent image qualtity. The focal plane of the optical
imager will be sampled with 0.1" pixels, or 1 Gigapixels in total. The sharpness of images will be
actively improved by correcting images for tip/tilt image motion during the integration corrections
will be done over the entire field of view, using a novel detector technology called Orthogonal
Transfer Array CCD, making ODI a unique and competitive instrument in the era of wide-field
surveys. ODI is funded by the WIYN partners and the National Science Foundation. |
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ODI Wiki pages (login required)
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Quad Orthogonal Transfer Array (QUOTA) |
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QUOTA (Quad OTA) serves as a prototype camera for ODI. Its functionality will be the same as that
of ODI, only on a much smaller scale. Featuring four Orthogonal Transfer Array CCDs, this 4k x 4k
imager with a 0.1" pixel scale will become WIYN's standard optical imager from semester 2007B
until ODI's arrival in 2009. Assembly of QUOTA is complete and commissioning activities have begun. |
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WIYN High Resolution InfraRed Camera (WHIRC) |
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The WIYN High Resolution Infrared Camera (WHIRC) is a joint project between the WIYN partners, and STScI. It will be a 2K x 2K near-infrared
imager (~1 - 2.5 microns) used with the WIYN Tip-Tilt Module (WTTM).
WHIRC + WTTM will provide a powerful combination of high spatial
resolution, with expected typical images of ~0.25", and best ~0.1", high sensitivity,
and a moderately wide FOV (3.3'x3.4'; area on sky/area per pixel = 4 x 106). It
will be a general purpose instrument for a wide range of science, offering the standard
broadband filters (JHK), as well as a number of narrowband filters.
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Bench Spectrograph Upgrade |
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The Bench Upgrade project consists
of implementing a faster, off-axis
collimator, the capability to use VPH
transmission gratings over a full range
of incidence angles, two VPH gratings,
and a new CCD system. Together, these
improvements are expected to yield gains
in throughput of factors of 2-5 over the
existing system while maintaining or
improving spectral resolution and sampling
for most applications, and at most
degrading spectral resolution by 20%. |
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For
more information contact:
Sheryl Falgout
Administrative Coordinator
WIYN Observatory
950 N. Cherry Ave.
Tucson, AZ 85719
E-mail: sfalgout@noao.edu
Telephone:
(520) 318-8279
Fax: (520) 318-8487 |
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