Pr

1

SIAMOIS Sismomètre Interférentiel A Mesurer les
Oscillations des Intérieurs Stellaires Seismic
Interferometer A? to Measure Oscillations in the
Interior of Stars CONCLUSION / DISCUSSION
2
Scientific programme

• Many targets (solar like oscillations, other
  pulsators). Cf Dons talk
• Other, further targets precise selection
  criteria are required to optimize the preparatory
  work
• d lt -45 for airmass lt 2
• opposite to the Sun in June ? range 15-21 h
  to be avoided except if declination is very
  negative
• Too many targets?
• Further simulations are required
• synthetic spectra ? performances (other types
  than FV or GV)
• Doppler signature in specific cases for example
  g modes of g Dor targets
• Scientific specifications (which duty cycle for
  which target)

3
Dome C

• Constraints due to the site
• Transportation
• Temperature
• No laboratory
• Setup (very) limited
• Environmental constraints
• Discussion with IPEV / Experience of LUAN

4
Inputs/simulations

• Better estimate of the duty cycle (2nd
  wintering, E. Aristidi) during the winter
  nights, during N months after and before.
• Measurement/estimation of sky brightness photon
  noise limited performance for V 5 ? vsky gt
  17/ 2
• Performance for magnitudes fainter than 5 (df ltlt
  2p !) faint targetrapid oscillation ? limited
  performances
• Performance for low fringe contrasts

5
Communication (1)

• Unique advantage of Dome Conly ground-based
  site providing 3-month long (100 days !)
  observations
• For specific targets, 3 months or 3 x 1 month?
• Only ground-based site providing a duty cycle
  about 80-90, much better than 70 (WET)
• Fourier tachometer successful principle of GONG
  (in use for gt 12 years)
• Core program/additionnal program
• Possible evolution simultaneous multi-targets

6
Communication (2)

• SIAMOIS ?? COROT
• SIAMOIS ?? SONG
• SIAMOIS ?? future project
• Link with IPEV, IPY
• ARENA federation of scientific projects to be
  operated at Dome C
• (meeting June 14-16, IAP)
• Next conferences (COROT, UAI, Vienna workshop)
• Conclusion of the kickoff meeting ? ANR

• We need a logo!