HUBBLE SPACE
TELESCOPE - Continuing to collect World Class Science
DAILY REPORT #
4296
PERIOD COVERED: UT
February 08, 2007 (DOY 039)
OBSERVATIONS
SCHEDULED
NIC2 10858
NICMOS Imaging of
the z ~ 2 Spitzer Spectroscopic Sample of Ultraluminous
Infrared Galaxies
We propose to
obtain NICMOS images of the first large sample of high-z ultra-luminous
infrared galaxies {ULIRGs} whose redshifts
and physical states have been determined with Spitzer mid-IR spectra. The
detection of strong silicate absorption and/or PAH emission lines suggest that the these sources are a mixture of highly obscured starbursts,
AGNs and composite systems at z=2. Although some of
the spectra show PAH emission similar to local starburst ULIRGs,
their bolometric luminosities are roughly an order of magnitude higher. One
important question is if major mergers, which are the trigger for 95% of local ULIRGs, also drive this enormous energy output observed in
our z=2 sample. The NICMOS images will allow us to {1} measure surface
brightness profiles of z~2 ULIRGs and establish if
major mergers could be common among our luminous sources at these early epochs,
{2} determine if starbursts and AGNs classified based
on their mid-IR spetra would have different
morphological signatures, thus different dynamic state; {3} make comparisons
with the similar studies of ULIRGs at z ~ 0 - 1, thus
infer any evolutionary connections between high-z ULIRGs
and the formation of normal, massive galaxies and quasars observed today.
NIC1 10879
A search for
planetary-mass companions to the nearest L dwarfs - completing the survey
We propose to
extend the most sensitive survey yet undertaken for very low-mass companions to
ultracool dwarfs. We will use NICMOS to complete
imaging of an all-sky sample of 87 L dwarfs in 80 systems within 20 parsecs of
the Sun. The combination of infrared imaging and proximity allows us to search
for companions with mass ratios q>0.25 at separations exceeding ~3 AU, while
probing companions with q>0.5 at ~1.5 AU separation. This resolution is
crucial, since no ultracool binaries are known in the
field with separations exceeding 15 AU. Fifty L dwarfs from the 20-parsec
sample have high- resolution imaging, primarily through our Cycle 13 HST
proposal which identified six new binaries, including an L/T system. Here, we
propose to target the remaining 30 dwarfs
NIC1/NIC2/NIC3 8795
NICMOS Post-SAA
calibration - CR Persistence Part 6
A new proceedure proposed to alleviate the CR-persistence problem
of NICMOS. Dark frames will be obtained immediately upon exiting the SAA
contour 23, and everytime a NICMOS exposure is
scheduled within 50 minutes of coming out of the SAA. The darks will be
obtained in parallel in all three NICMOS Cameras. The POST-SAA darks will be
non- standard reference files available to users with a USEAFTER date/time
mark. The keyword 'USEAFTER=date/time' will also be added to the header of each
POST-SAA DARK frame. The keyword must be populated with the time, in addition
to the date, because HST crosses the SAA ~8 times per day so each POST-SAA DARK
will need to have the appropriate time specified, for users to identify the
ones they need. Both the raw and processed images will be archived as POST-SAA DARKSs. Generally we expect that all NICMOS
science/calibration observations started within 50 minutes of leaving an SAA
will need such maps to remove the CR persistence from the science i mages. Each observation will need its own CRMAP, as
different SAA passages leave different imprints on the NICMOS detectors.
NIC3/NIC2/NIC1
11086
Mini-SMOV NICMOS
dark current, shading profile, and read noise program
The purpose of
this proposal is to study the dark current, read noise, and shading profile for
all three NICMOS detectors after the NICMOS starts operating due to safing. This proposal is a version of the NICMOS monitoring
program.
WFPC2 11022
WFPC2 Cycle 15
Decontaminations and Associated Observations
This proposal is
for the WFPC2 decons. Also included are instrument
monitors tied to decons: photometric stability check,
focus monitor,
pre-
and post-decon internals {bias, intflats,
kspots, & darks}, UV throughput check, VISFLAT
sweep, and internal UV flat check.
WFPC2 11090
Hubble Heritage
Observations of PNe with WFPC2
This is a proposal
for observation of a set of PNe using a common WFPC2
observation sequence.
FLIGHT OPERATIONS
SUMMARY:
Significant
Spacecraft Anomalies: (The following are preliminary reports of potential
non-nominal performance that will be investigated.)
HSTARS: (None)
COMPLETED OPS
REQUEST: (None)
COMPLETED OPS
NOTES: (None)
SCHEDULED
SUCCESSFUL
FGS GSacq
04
04
FGS REacq
09
09
OBAD with Maneuver 28
28
SIGNIFICANT
EVENTS: (None)
-
____________________________________________________________
Lynn F. Bassford
Hubble Space Telescope
CHAMP
Lockheed Martin
NASA GSFC PH#: 301-286-2876
Cell/Voice Mail: 240-603-4873
Text/Pager: 2406034873@messaging.sprintpcs.com
"The Hubble Space Telescope is the
astronomical observatory and key to unlocking the most cosmic mysteries of the
past, present and future." - 7/26/6