README web version of /home/usg/OPS/MTS/readme_xml/readme_77065700

Principal Investigator Email Address

• sven.derijcke@UGent.be

Estimated Total Execution Time (hours, including overheads)

• 21 hours

General Description

• The aim of this project is to obtain integral field spectra with VIMOS
   of 3 E+A galaxies. We will use the HR_blue grism with 0.67" sampling. The galaxies
   are small enough (half-light radii of the order of 2-5 arcseconds) for the outer
   parts of the 27"x27" FOV to be used for sky subtraction. The targets are :
  
  SDSS J210258.87+103300.6 : OBs IFU_SDSSJ210258.87+103300.6, IFU_SDSSJ210258.87+103300.6-dup1,
   ..., 
                             IFU_SDSSJ210258.87+103300.6-dup6, total exposure time
   : 5h55m, 3h21m on source
  
  SDSS J233453.20+145048.7 : OBs IFU_SDSSJ233453.20+145048.7, ..., IFU_SDSSJ233453.20+145048.7-dup5
                             total exposure time : 5h55m, 3h12m on source
  
  SDSS J230743.41+152558.4 : OBs IFU_SDSSJ230743.41+152558.4, ..., IFU_SDSSJ230743.41+152558.4-dup7
                             total exposure time : 7h53m, 4h28m on source
  
  Each OB contains 1 exposure of ~2050 seconds (+acquisition + nightcalib). The spectra
   are slightly dithered (with 0.5" offsets).
  
  Special Calibration Information : Please take one twilight spectrum with the same
   instrumental setup - OB
  "twilight_SPKS10". Please adjust the exposure time in that OB to have high S/N of
   solar spectrum. Please take one spectrophotometric standard star from the calibration
   plan each time the observations of scientific OBs are done.
  
  twilight_SPKS10 : this is a spectrum of an empty field. It should be observable
   at the beginning of the night. Any empty field, e.g. as defined on the FORS webpage,
   will do. This OB need only be executed once during the whole run. I entered a representative
   exposure time of 10 seconds. The correct exposure time will of course depend on
   the exact time the spectrum is obtained during twilight.

Waiver Requests

• The goal is to measure stellar kinematics as well as estimate mean ages
   and
  metallicities of these galaxies. As template, we will not use stellar
  templates observed with the same instrumental setup but synthetic SSP
  spectra. These first need to be broadened to the instrumental profile of
  the instrument.
  
  
  We would do this by fitting an extremely high resolution solar spectrum
  to a twilight spectrum observed with VIMOS with the same instrumental
  setup as our science exposures (this was detailed in the Calibration
  Request of our proposal). We have asked permission to observe 1 twilight
  spectrum and this waiver request (077.B-0657A.01.WAV) was approved

Critical Observing Condition Constraints

• none

Time-Critical Aspects

• none

Special Execution Requirements

• ---(Empty)---

Special Calibration Information

• Please take one twilight spectrum with the same instrumental setup - OB
   "twilight_SPKS10". Please adjust the exposure time in that OB to have high S/N of
   solar spectrum. Please take one spectrophotometric standard star from the calibration
   plan each time the observations of scientific OBs are done.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(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 ?

• YES

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 ?

• 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 specify suitable guide stars for all your OBs using Guidecam
 ?

• N/A

Did you check that the chosen guide stars are suitable for all the offset
 positions and that they do not produce unacceptable vignetting of the field of view
 ?

• N/A