README web version of /home/usg/OPS/MTS/readme_xml/readme_83038200

Principal Investigator Email Address

• nicole.nesvadba@ias.u-psud.fr

Estimated Total Execution Time (hours, including overheads)

• 8

General Description

• This is a follow-up program of a highly peculiar CO emitter at z~2.6,
   with the goal of identifying rest-frame optical line emission, which would constrain
   the nature of this enigmatic source. It may be a galaxy with >10^10 Ms in molecular
   gas, but no stars (with an upper limit of few x 10^9 M_s), or gas associated with
   the massive halo of a powerful radio galaxy at the same redshift. These observations
   will be critical to distinguish between the two scenarios, and at any rate, will
   help elucidating the nature of this object, which is the first of its kind known.
   As such they are very urgent, and this is why we proposed to observe the target
   in P83, in spite of the RA, which is far from ideal. On the other hand, this program
   would be ideal for a carry-under into P82. We will analyse the data immediately
   after they are taken, including partial data sets. 
  
  On the observational side, we aim at detecting line emission which is likely not
   associated with any continuum emitter. So, don't be surprised if you don't see anything
   in one individual OB! We don't know whether the source is extended or not, or filamentary.
   It is not resolved spatially in a 5" beam with IRAM. The target is not associated
   with any continuum emitter, so you don't see it in the finding chart. We hope for
   up to ~10E-16 ergs/cm^2 of Ha line emission from this object, but obviously can't
   be certain. As you will see from the finding chart, there is a faint star which
   should appear near the N-E corner, which may serve to verify the overall pointing
   accuracy, if necessary, and we will use this star later on to register the individual
   OBs to the final data set. This is why we do not need an extra positional calibration.
    
  
  The finding chart shows a representative pointing, our dither positions are along
   the 2 diagonals with max. offsets of 2" in RA and Dec. 
  
  The acquisition star has K=11.5 mag.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• none. The earlier the better, given the bad RA for the summer semester.

Time-Critical Aspects

• None. Again, the earlier the better!

Special Execution Requirements

• None.

Special Calibration Information

• Standard calibrations.

ToO Information

• .

ToO Activators List

• .

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• .

Source(s) of Pre-imaging

• ---(Empty)---

Pre-imaging sources not listed above

• ---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
 Category for each Observing Template ?

• N/A

Do all your finding charts comply with both the general and instrument-specific
 Phase 2 Web Pages ?

• YES

If you submitted OBs for standard stars, did you specify the magnitude
 and spectral type of all standard stars in the OBs ?

• N/A

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• N/A

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• N/A

If you have preferences which OBs should be executed first, did you make
 use of the User Priority field in the OBs ?

• N/A

If this is a run that requires coordinated observations with other facilities,
 did you give proper instructions in the Time-Critical Aspects Section ?

• N/A

Did you indicate the magnitude of the brightest object in the field in
 each SINFONI OB?

• N/A

If you are using the AO: Did you indicate for every OB the magnitude
 of the guide star, and its distance to the target (if any)?

• N/A

If you submitted OBs for standard stars, did you use the provided StandardStar
 templates?

• N/A

If you are using a specific offset pattern or position angle: did you
 check carefully the definition in the manual?

• YES

Did you make really sure that none of your OBs ever saturates the detector?

• YES

If you are using the AO: did you enter the correct Strehl Ratio (on-axis,
 K-band) AND the seeing value in the constraint set?

• N/A