The Supernovae Integral Field Spectrograph: keys to high-precision spectro-photometry - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Poster Year : 2007

The Supernovae Integral Field Spectrograph: keys to high-precision spectro-photometry

Y. Copin
G. Aldering
  • Function : Author
C. Aragon
  • Function : Author
S. Bongard
M. Childress
  • Function : Author
S. Loken
  • Function : Author
P. Nugent
  • Function : Author
S. Perlmutter
  • Function : Author
K. Runge
  • Function : Author
R.C. Thomas
  • Function : Author
B.A. Weaver
  • Function : Author
C. Baltay
  • Function : Author
A. Bauer
  • Function : Author
D. Rabinowitz
  • Function : Author
R. Scalzo
  • Function : Author

Abstract

The Supernovae Integral Field Spectrograph: keys to a better spectro-photometry The Nearby Supernova Factory aims at discovering and observing a sample of type Ia supernovae through the dedicated Supernovae Integral Field Spectrograph, currently in operation since 2004 on Mauna-Kea UH telescope. To reach the targeted spectro-photometric accuracy, attention has been focused on various aspects of the calibration procedure, including: estimate of the night photometricity, derivation of the mean atmospheric extinction over the extended optical domain (320-1000 nm), its modeling in terms of physical components (Rayleigh and aerosol scatterings, ozone absorption and telluric lines) and its variability within a given night. Point-source extraction from the IFS datacube also requires a detailed knowledge of the atmospheric-induced point spread function (PSF). The overall accuracy of the calibration chain is estimated on reference flux standard stars.
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Dates and versions

in2p3-00171064 , version 1 (05-08-2009)

Identifiers

  • HAL Id : in2p3-00171064 , version 1

Cite

C. Buton, Y. Copin, E. Gangler, G. Smadja, E. Pecontal, et al.. The Supernovae Integral Field Spectrograph: keys to high-precision spectro-photometry. Semaine de l'Astrophysique Française (SF2A 2007), Jul 2007, Grenoble, France. Société Française d'Astronomie et d'Astrophysique, 2007. ⟨in2p3-00171064⟩
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