README web version of /home/usg/OPS/MTS/readme_xml/readme_75007903

Principal Investigator Email Address

• sabine@strw.leidenuniv.nl

Estimated Total Execution Time (hours, including overheads)

• 4 hours per run

General Description

• Using high resolution spectra, we plan to measure spectral line bisector
  variations in our K giant target stars. The stars have been selected from
  a sample of K giant stars which we have monitored measuring precise radial
  velocities over timescales from days to years, and this is also the timescale
  which we want to probe for spectral line bisector variations.
  
  We require high resolution for this program, so that we choose the
  high resolution image slicer.
  
  The central wavelength (6461.6 A) has been selected so that there are
  enough non-blended lines in the covered region which are suitable for
  spectral line bisector measurements.
  
  The exposure times have been chosen to reach at least a S/N of about
  200-300. In poor observing conditions, they should be adjusted so that
  this same S/N level can be reached. For the very bright stars,
  a higher S/N level does not hurt, as long as the CCD does not saturate.
  
  Exposure times reach from 10 seconds for our brightest star (Arcturus,
  -0.1 mag) up to 12 min for stars between 5.5 and 6.0 mag (the faintest
  stars in our program).

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• The observations can be performed in all kinds of conditions that permit
  observing.
  times would have to be adjusted accordingly.

Time-Critical Aspects

• I could not select the proper stars to observe for each run,
  since I do not know the dates of the runs! Thus, instead I have listed
  all of our stars for each run, and prioritized the stars, so that one
  could select the most important ones observable at each time.

Special Execution Requirements

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Special Calibration Information

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ToO Information

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ToO Activators List

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Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

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Source(s) of Pre-imaging

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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 ?

• YES

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 ?

• YES

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