README web version of /home/usg/OPS/MTS/readme_xml/readme_78031200

Principal Investigator Email Address

• ez@astro.uu.se

Estimated Total Execution Time (hours, including overheads)

• 03.38

General Description

• General Description: The goal of this programme is to obtain images in
   
  various filters of two low-redshift starburst galaxies (078.B-0312(A): 
  Tol 0440-381 at z=0.041; 078.B-0312(B): Tol 1247-232 at z=0.048) for 
  which spectra taken with the FUSE satellite have revealed leakage of 
  Lyman-continuum radiation. Prior to these detections, only a single 
  case of such leakage has been reported from a low-redshift galaxy. 
  With the help of EMMI, the Lyman continuum escape fractions for these 
  galaxies can be derived. These quantities will have important implications 
  for reionization scenarios involving starburst galaxies at z=6-10.
  
  For 078.B-0312(A) we need broadband images in BVRI and narrowband images 
  in the four filters: #600 (Ha), #768 (Ha continuum), #590 (Hbeta) and #765 
  (Hbeta continuum)
  
  To calibrate these observations, we furthermore need (obtained within 
  the standard calibration plan):
  * Bias frames 
  * BVRI twilight flats (or dome flats, if twilight flats cannot be obtained)
  * BVRI standard star observations
  * #600 #768, #590, #765 dome flats

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• Critical Observing Conditions Constraints: Photometric conditions, 
  fractional lunar illumination not higher than 0.4.

Time-Critical Aspects

• None.

Special Execution Requirements

• None.

Special Calibration Information

• Special Calibration Information: To allow flux calibration for the 
  narrowband filters used, one spectrophotometric standard star need 
  to be observed for 078.B-0312(A). The calibration OB need to be 
  executed in the same night as the science targets, preferably directly 
  before or after the science OBs. The name of the calibration OB is:
  CAL GD50
   
  This OB involves imaging of the spectrophotometric standard star 
  in 4 narrowband filters: 
  #600, #768, #590 and #765
  
  GD50 is a V=14.06 white dwarf of spectral type DA2.

ToO Information

• Not ToO.

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 ?

• 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 ?

• 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