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Today is Monday, March 29, 2010

Spring 2010 News

Last updated 24 February 2010

Proposal Deadline for Semester 2010B (August 1, 2010 - January 31,
2011) is Thursday, April 1, 2010.

Please review the information and use our ONLINE application form

Available instruments are listed here. Remote observing is offered
from any location with broadband Internet access for any project that
utilizes IRTF instruments. Click here for more information.

Telescope Allocation Committee
The current TAC members are Gordon Bjoraker (Goddard), Michael Gregg
(Lawrence Livermore Nat. Lab.), Luke Keller (Ithaca College), Michael
Kelley (U. of Maryland), Mark Buie (SWRI), and Tracy Beck (STScI).
This committee consists of three solar system and three non-solar
system members. The member who rotated off is Eilat Glikman (Caltech).

IRTF Hartley 2 Campaign
We are pleased to announce a comet Hartley 2 observing campaign to be
conducted in semester 2010B (Aug. 2010 - Jan. 2011). This comet will
reach perihelion in Oct. 2010 and will be visited by the EPOXI
spacecraft. Up to two weeks of time will be guaranteed for this
campaign. All data obtained will be made public, and observing logs
will be requested for archiving. We encourage observing groups to form
collaborations to enhance the scientific return from the observations.
When submitting a proposal, please note clearly that the proposal is
submitted for the campaign. Groups with visitor instruments can
participate in the campaign so long as the data and observing logs are
allowed to be public. We require that the acquired data be submitted
to the PDS and we will assist observers in doing this.

Science Highlights and Publications
Our Science Highlights page is updated regularly as we receive the
latest highlights from you. These highlights are sent to our funding
agencies, NASA and NSF, to keep them abreast of the exciting and
useful science obtained at the IRTF. See examples here. Please
continue to submit your new publications using the form provided on
our website, or send your reprints to William Walters. Please
acknowledge the IRTF in your publications following the instructions
shown here. It is important that you include in your papers the name
of the instrument used and the citation for the instrument, as this
helps to insure future funding of IRTF instruments. For AAS
publications, please include the facility keyword and instrument, such
as IRTF:SpeX. Look here for more information.

Non-standard Observing Programs
We have a program to observe Titan whenever it is up and SpeX is on
the telescope "Titan's Methane Meteorology: Context for Cassini Titan
Flybys T63-T66" (PI: E. Schaller). This program is aimed at
discovering new cloud features on Titan (see the Press Release). If
there is evidence for activity then adaptive optics imaging is
obtained at the Gemini or Keck observatories. The observing time is
noted on the schedule and there is flexibility on when the
observations are taken.

IRTF Spectral Library
Users are encouraged to make use of the spectral library, which is
available here. The paper on Cool Stars has been submitted to ApJS and
will be posted on the website when accepted for publication. Contact
John Rayner for more details.

NEO Spectral Survey
The MIT-IRTF Near-Earth Object spectral survey is underway, and many
spectra are publicly available. See the side bar for more information
or go to smass.mit.edu/minus.html.

IRTF Headlines
The IRTF is making headlines for its detection of methane in an
exoplanet using the SpeX instrument. See the articles below.

Articles:
Scientific American
BBC
Space.com
Christian Science Monitor
CBC
The Guardian

Personnel Spotlight

Maury McOuat

Every day of the year the IRTF's Day crew must travel two hours with
4x4 vehicles to the top of Mauna Kea. For the past eight years Maury
McOuat has been serving as IRTF's cargo master with the responsibility
of driving the facility's flat-bed truck, which carries the
telescope's vital supplies and scientific instruments to the
13,803-foot summit.

Over the years McOuat has mastered the art of driving at high altitude
through dust, rock-strewn roads and even through snow and ice during
the winter months. The first two weeks upon working for IRTF were the
hardest McOuat said, but ever since then he has adjusted to the
altitude and making the daily trips. Once at the summit McOuat is
responsible for cleaning and maintaining the building performing such
tasks as changing out the HVAC filters, maintaining an inventory of
the facility's compressed gas and cryogen cylinders, and even
re-painting the dome when necessary. McOuat says that working on the
outside of the building can be harsh with winds gusting up to 40 miles
an hour. But Mauna Kea can also be a place of great beauty, McOuat
said, with spectacular views of every corner of the island. Prior to
working for the IRTF McOuat spent 20 years working in the construction
trades. McOuat said that the most challenging aspect of his job is
juggling the many tasks of maintaining the facility along with its
eight service vehicles. When he is not working at the IRTF, McOuat
enjoys spending time with his family, working on his project vehicles
and tending to the tangerine, avocado, lychee and tangelo trees on his
three-acre orchard in Puna.

Instrumentation Update

SpeX:
Work on upgrading SpeX with a 2048x208 Hawaii-2RG (H2RG) array and new
array control electronics continues. We have taken delivery from
Teledyne Scientific & Imaging one science grade H2RG detector and one
engineering grade H2RG detector has been received for the instrument.
Engineering work continues on the new array controller that will be
common to three instruments including the SpeX upgrade, iSHELL and
NSFCAM2. We expect the new array and array controller to be deployed
first in NSFCAM2 in 2010 followed by SpeX one year later. Contact John
Rayner for more details.

MIRSI:
Thanks to Charles Lockhart MIRSI is now called MIRSI-2 due to the
completed upgrades to the graphical user interface that give it the
same look and feel as the facility instrument GUIs. In addition,
various hardware, firmware, and software upgrades have made MIRSI-2
more reliable and robust. Future upgrades to the sensitivity, avoiding
the fix pattern noise, and eliminating various readout artifacts
continue. Contact Bobby Bus for more details.

NSFCAM2:
This camera has been used on a conditional basis because of the high
read-noise, which decreases the sensitivity at JHK. After extensive
evaluations, we have determined that the current array should be
replaced, and a new array has been received. In addition, because of
obsolete components, a new set of control electronics is currently
being developed. To check the status of this instrument before writing
a proposal, contact Bobby Bus. NSFCAM2 is currently best suited for
observations in the thermal infrared (3-5 microns), since it is
background limited and the image quality is excellent, or where a wide
field of view of 0.04 arcsec pixels is required.

New Secondary Mirror:
Eric Tollestrup continues to test two new secondary mirrors that have
been fabricated for the IRTF. The new mirrors have been figured by
Optical Surface Technologies in New Mexico. One of the two mirrors
will have additional figuring by Ion Beam Polishing to remove as much
of the residual wavefront errors (primarily polishing error in the
primary mirror) as is practical. The IRTF will be commissioning this
highly corrected new secondary mirror during the Spring 2010 semester.

CSHELL:
CSHELL is working normally. The new user GUI is now in regular use.
Observing macros written for the old GUI should be tested prior to
observing.

iSHELL:
Alan Tokunaga has obtained funding through the NSF Major Research
Instrumentation program to build a 1-5 micron cross-dispersed
spectrograph to replace CSHELL. Science and engineering grade H2RG
infrared detectors have been received from Teledyne Scientific &
Imaging and the engineering of the instrument itself is underway. The
spectral resolving power of this instrument will be approximately
70,000. A PDF copy of the proposal can be downloaded here. Contact
Alan Tokunaga if you have any questions or comments about the
proposal. We welcome input from the community on this new major
instrument for the IRTF.

:: Spring 2010 applications awarded observing time.

:: more

:: Coordinated observations of ozone on Mars by HIPWAC and Mars
Express SPICAM

:: Burgasser Very Cool Brown Dwarf

:: 2009 Jupiter Impact: Second Time Around

:: Ten Years of Triton Spectral Monitoring with IRTF/SpeX.

:: Huge cloud discovered on Titan, 13 August 2009. News articles one
and two.

:: Jupiter impact of 19 July 2009. News articles one and two.

:: IRTF observations of H3+ in planetary atmospheres

:: The IRTF Spectral Library: Cool Stars (FGKM-SC-LT)

:: Depth of a Strong Jovian Jet From a Planetary-Scale Disturbance

:: Time Variability of the Dust Sublimation Zones within Pre-Main
Sequence Disk Systems

:: more

NASA Infrared Telescope Facility

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