CFHT Update
For Semester 2001B
This an update concerning the current
status of instruments as well as other information regarding submission
of proposals.
Semester 2001B Proposals:
Deadline is March 21, 2001 - 24:00
UTC |
All proposals from Canada and France for
Semester 2001B must use the electronic proposal system operated by the
Canadian Astronomy Data Centre. The Phase
One
Observing
Proposal
SYstem
(POOPSY) is an electronic
submission system which uses a standard Web browser but is based on LaTeX,
a familiar formatting language. Consult the Users
Guide for more information.
Some important notes:
-
CFH12K will again be operated in QUEUED
SERVICE OBSERVING (QSO) mode in Semester 2001B.
Please consult the Queue
Scheduling pages for information regarding this program. QSO is the
default
mode for CFH12K observations...
-
OSIS IR in its new configuration (using
CFHTIR as a detector) will be offered to the community for the second half
of 2001B on a shared risk basis. OSIS IR won't have been commissioned before
the end of the 2000B proposal period, though it is likely to be available
for the second half of 2001B.
-
OASIS is scheduled
to leave CFHT at the end of April 2002. If you have, or plan
to start, an observing program with OASIS at CFHT, please take this element
in consideration while preparing your proposal.
-
The F/35 upper end
is no longer available. Neither FTS in its present configuration
nor visitor instruments using the F/35 upper end can be scheduled at CFHT
anymore.
-
The STIS2 detector
is no longer available. Though replacement solutions are under
study, none is clearly identified yet. Please read carefully the on-line
information on MOS and OSIS before selecting the detector you want to use
(EEV1 or Loral3).
Instrument Availability
CFH12K
(Contact Jean-Charles Cuillandre (jcc@cfht.hawaii.edu)
for information)
CFH12K is the CFHT prime focus wide field
visible camera (FOV=28'x42'). It is a 12,288 by 8,192 pixel CCD mosaic
made of 6x2 CCDs (2k x 4k) with a pixel scale of 0.2 arcsec. The back-side
illuminated CCDs provide high sensitivity, in particular in the B band.
The filters available are: B, V, R, I, Z', Halpha, HalphaOFF, TiO, CN.
Consult the updated CFH12K
Web pages for detailed information on the characteristics and performances
of the camera.
CFHT-IR is a new general purpose 1024 x 1024
near-infrared camera designed for direct imaging at the F/8 (and for imaging/spectrocopy
on OSIS).
Cassegrain focus. Commissioned at the
end of 2000 and already used for a scientific run in January 2001, it is
expected to be fully operational in the F/8 direct-imaging mode for the
semester 2001B.
GECKO will be run with a coude mirror trains
in the UV (below 4000A or so), and through CAFE, the CAssegrain
Fiber Environment, for other wavelengths. CAFE has been successfully installed
and used in July 2000B, providing more flexibility in scheduling Gecko
runs.
There is no shortage of potential CCDs
available for Gecko in 2001B. Beside Loral3 which is a thick 2K x 2K device
with 15 micron pixels, EEV1 is available. EEV1 is a 2k x 4.5k device with
13.5 micron pixels. A short summary of device characteristics is:
Loral3:
Low Q.E. in blue but the only device which will not have fringing in the
red. Read noise around 9 electrons
EEV1:
Reasonably high Q.E. from 3000A onward with fringing beyond 7000A or so.
Read noise of 3 electrons and 15 seconds of readout time.
MOS is a multi-object spectrograph
covering a 10x10 arcmin field which can also be used in direct imaging
and in Fabry-Perot mode.
OSIS-V is a visible spectrograph
covering a 3.6x 3.6 arcmin field.
OSIS fast guiding is working reliably.
Images with 0.39" FWHM using the fast guiding have been obtained
with OSIS-V.
With the fatal failure of STIS2, EEV1 is
the detector of choice for both MOS and OSIS. If the fringing in the red
is a problem for the observations, the old Loral3 could still be used.
The latest news on MOS and OSIS can be found here.
A summary of the grisms
and filters
available for MOS and OSIS is available.
The ARGUS mode of MOS is no longer offered
(see OASIS).
OASIS is an integral field spectrograph which
can be used in conjunction with the Adaptive Optics Bonnette, to give low
to medium resolution spectroscopy with spatial sampling as high as
0.04". OASIS can also be used directly at the F/8 Cassegrain focus.
EEV1and Loral3 are the two detectors available
for OASIS. Check the latest
news on OASIS...
Note that most of the programs which could
have been performed with MOS-ARGUS can use OASIS instead.
OSIS-IR
(Contact
Eugene Magnier (magnier@cfht.hawaii.edu)
for information)
OSIS-IR is proposed for the second
half of 2001B on a shared risk basis. CFHTIR
will be the detector used in this mode. As OSIS-IR won't be tested on the
sky before May 2001 (if not later), no on-sky test data are available for
this instrument yet... You can look at the OSIS information for a reminder
on the previous OSIS-IR
configuration (with the redeye detector).
PUEO is the CFHT Adaptive Optics Bonnette.
For observations in infra-red, KIR is the detector to be used. Detailed
information on performance and results are available on the KIR
and the PUEO
Web pages
For observations in the visible, FOCAM
and a standard CCD are available. There are two modes available for FOCAM
with AOB with and without a focal enlarger. Pixel scales are 0.022 or 0.044
arcsec in the visible for Loral 3, with and without the focal enlarger
respectively.
NOTE: The GRiF
K-band integral field spectrograph will be available on a shared risk
basis. What modes will be available will depend on the integration schedule.
Currently, KIR can be operated with the Fabry-Perot (R=1800).
The next steps will be the integration
of the grism in the filter wheel and the focal plane wheel, which will
allow long slit specroscopy with a resolution of R~500. If these two modes
are integrated together, the integral field spectrograph will be
operationnal. Please check the PUEO
web page for the latest news on these developments.
Available detectors
CCDs
-
Loral3, 2k x 2k thick CCD, 15 micron
pixels - no fringing in the red
-
EEV1, 2k x 4.5k thin CCD, 13.5 micron
pixels (Gecko, OASIS, MOS, MOS/FP and OSIS)
IR Detectors
-
The KIR camera which incorporates a
1024 x 1024 Rockwell NICMOS chip with 18.5 micron pixels is available for
use with AOB
-
CFHTIR is the new IR camera, used for
science since the beginning of 2001.
Consult the CFHT Detectors
page for more information on the detectors which are currently available.