README web version of /home/usg/OPS/MTS/readme_xml/readme_77079400
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
Our scientific objective is the search for water ice in circumstellar
disks of young stellar objects with edge-on inclinations. We expect variations of
the water ice feature at 3.08um in dependence on the composition (amorphous-crystalline,
small-large ice grains) and the position of water ice (outer-inner regions of cirumstellar
environment). This run consists of 20 OBs, 10 for calibrators and 10 for scientific
targets. Each object (scientific target and calibrator) should be observed twice:
once with a parallel slit orientation and once with a perpendicular slit orientation
in respect to the assumed disk axis.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
The scientific objects Elias-23, VVCrA and YLW16A are a 10.6'', 2'' and
0.3''-binary, respectively. As we do not know the exact orientations of the circumstellar
disks of these objects, the slit with the "parallel" orientation should pass through
both objects, the primary and secondary, in each nodding position. Therefore, we
require an acquisition with the ("parallel") slit being centered between the two
sources. The corresponding slit with the "perpendicular" orientation should be centered
on the brighter component of each binary.
Special Calibration Information
The (telluric) calibrators were chosen because of their proximity to the
scientific targets.
Calibrator for the objects Elias23, GY244, CRBR2422.8, YLW16A is
HR6070: V=4.792, K=4.813, L=4.807, spectral type: A0V, obtained from the van-der-Bliek-IR-Standard-list
(ISAAC web page).
Calibrator for the object VVCrA is
BS7330: V=6.48, K=4.97, spec. type=G5V, obtained from the MSSSO-Standard-List (ISAAC
web page).
ToO Information
ToO Activators List
Is this a Pre-imaging run ?
Pre-imaging Requirements
Source(s) of Pre-imaging
Pre-imaging sources not listed above
Do all your OBs comply with the instrument-specific requirements listed
on the instrument-specific Phase 2 web page ?
If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
Category for each Observing Template ?
Do all your finding charts comply with both the general and instrument-specific
Phase 2 Web Pages ?
If you submitted OBs for standard stars, did you specify the magnitude
and spectral type of all standard stars in the OBs ?
Have you included OBs for any calibrations that you need but which are
not part of the Calibration Plan ?
If you are observing Moving Targets, have you attached suitable ephemeris
files to your OBs?
If you have preferences which OBs should be executed first, did you make
use of the User Priority field in the OBs ?
If this is a run that requires coordinated observations with other facilities,
did you give proper instructions in the Time-Critical Aspects Section ?
If you have PSF reference star OBs, do the names of those OBs begin with
PSF_ ?
If there are Finding Charts attached to your OBs, is the field-of-view
of at least one of these charts 2' x 2' (with clearly labelled field orientation)
?
Have you clearly marked and labelled your wavefront reference objects
R1, R2, R3, ... (as specified in the NAOS Preparation Software) on your Finding
Charts ?
Have you specified the magnitude of the brightest object in the field-of-view
for each OB ?
Are there objects in any of your fields (including standard stars) which
are brighter than the limits specified in the User Manual and on NACO web Pages
?
If the previous answer is yes, have you given a list of OBs and a justification
for the brightness limit violation in the general description field ?
Last creation of page: Tue Oct 6 15:40:14 2009
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