README web version of /home/usg/OPS/MTS/readme_xml/readme_60940800

Principal Investigator Email Address

• dfloyd@lco.cl

Estimated Total Execution Time (hours, including overheads)

• 1.5

General Description

• We aim to measure the radial emission profiles of "anomalous" quadruply-lensed
   quasars.
  Anomalous quasars have an lensed image pair in which one image is found to be anomalously
   
  dim (by symmetry they are expected to be found at similar magnifications). We need
   to 
  obtain spatially resolved spectroscopy of the bright image pair in each quadruply
   lensed 
  system in our sample, in sufficiently good seeing to resolve the anomalous image
   pair (0.6 
  arcsec or better), and to sufficient depth to detect the dimmer of the brightest
   two lensed 
  images. From this we will determine the flux ratio across the spectrum, making separate
   fits 
  to the continuum and emission lines. The anomalous flux ratio provides a statistical
   
  measurement of the emission region size.
  
  We request the slow read mode, high gain and no binning. We will also require (same
   exposure 
  time) off-target sky dithers in order to perform accurate sky-subtraction.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• SKY TRANSPARENCY: 2CLR
  
  SEEING: 0.6 arcsec
  
  LUNAR ILLUMINATION: 0.5
  
  MOON ANGULAR DISTANCE: 15.0 (degrees)

Time-Critical Aspects

• N/A

Special Execution Requirements

• It is the bright image pair that is of principal interest in each target.
  However, for WFI2026-4536 please ensure that the lensing galaxy is also at least
   partially in the IFU window.

Special Calibration Information

• N/A

ToO Information

• N/A

ToO Activators List

• N/A

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?

• YES

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