README web version of /home/usg/OPS/MTS/readme_xml/readme_60940200

Principal Investigator Email Address

• stephane.basa@oamp.fr

Estimated Total Execution Time (hours, including overheads)

• 4h

General Description

• We propose to observe the host galaxy of GRB080913 at a confirmed redshift
   of 6.7, the second most distant GRB and third most distant galaxy known-to-date.
   It could be possible to detect it by searching for emission lines as Ly-alpha and
   possible features of population III stars such as HeII, a long sought quest in very
   young high redshift galaxies. 
  
  With an exposure of 4 hours, it should be possible to observe an emission line with
   a flux greater than about 4.10^-18 ergs/s/cm2 (S/N=3), which is in the range of
   the spectroscopically confirmed Ly-alpha Emitters. Such an observation will constrain
   the host galaxy properties and the stellar population at the origin of the very
   first GRBs, and will also contribute to the study of the re-ionization of the universe.
  
  The host galaxy is observable at the end of the night in August (dawn in July).
   
  
  IFU mode msut be used as the pointing position is based on the one of the GRB prompt
   emission:
    - IFU placed at parallactic angle.
    - GRB host position: 04:22:54:740 and -25:07:46.200
    - Star for blind offset (labelled 1 in the finding chart): 04:22:55.200 and -25:07:39.252
   
    - Offset to reach the host galaxy: -6.26" and -6.95"

Waiver Requests

• Waiver: 60.A-9402A.01.WAV
  
  The possibility to create 2 OBs of 2 hours has been accepted.

Critical Observing Condition Constraints

• The host galaxy of GRB080913 is a very faint object: good sky conditions
   (seeing <=0.8 arcsec and clear sky) are then required.

Time-Critical Aspects

• No special time-critical constraints.

Special Execution Requirements

• The host-galaxy of GRB080913 must be observed in IFU mode: the pointing
   position is based on the one of the GRB prompt emission.

Special Calibration Information

• Only a standard calibration is required.

ToO Information

• Not a ToO program.

ToO Activators List

• Stephane BASA: Stephane.Basa@oamp.fr
  Benjamin CLEMENT: Benjamin.Clement@oamp.fr
  Jean-Gabriel CUBY: jean-gabriel.cuby@oamp.fr

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

• YES

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 specified the S/N ratio at given wavelength in the User Comments
 field of each OB?

• 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