RA Range: 18h

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 0.8, 3THN, 1.5, 1.0, 3.0

Pre-imaging run?	No!	Chilean run?	No!	Special calibrations?	No!
Time critical?	No!	ToO?	No!	Carry-over run?	No!

 
 
  Simple high resolution spectroscopic program of one bright RR 
Lyrae pulsating (~11h cycle) star (S Ara), in order to determine the 
amplification for a Mach number in the range 10-15. This will be 
achieved by observing the strong shock wave, crossing the atmosphere 
of the star in about 3 hours around its luminosity maximum. 

  Observations must be taken at a precise phase of the pulsation 
cycle, around its liminosity maximum and need to be well mapped in 
time. This requires a continuous execution of all 4 OBs without 
stopping. One radial velocity standard star has been provided and 
needs to be observed during the same night.

==> Execution of such program will be triggered by P.I., after the 
precise pulsation phase interval has been determined from the FEROS 
observing run (June 2001). P.I. has been warned that conditions cannot 
be guaranteed for the whole execution time of the program. Total 
execution time exceeds OPC allocated time by ~15%, but it should be 
ok since no re-acquisition should be needed during execution. 

 
 

Run status page 67.D-0321B

README of this run:

67.D-0321B.README