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The Nearby Supernova Factory: toward a high-precision spectro-photometry

Copin, Y. / Buton, C. / Gangler, E. / Smadja, G. / Pecontal, E. / Rigaudier, G. / Antilogus, P. / Bailey, S. / Pain, R. / Pereira, R. / Wu, C. / Aldering, G. / Aragon, C. / Bongard, S. / Childress, M. / Loken, S. / Nugent, P. / Perlmutter, S. / Runge, K. / Thomas, R.C. / Weaver, B.A. / Baltay, C. / Bauer, A. / Rabinowitz, D. / Scalzo, R. - 2007
The Nearby Supernova Factory (SNfactory) is an international project to discover and study a large sample of type Ia supernovae in the redshift range 0.03 < z < 0.08. Follow-up spectro-photometric observations are performed using the dedicated Supernovae Integral-Field Spectrograph, mounted since 2004 on 2.2 m UH telescope. The goal is to acquire for each supernova and over its full life-time (more than 10 epochs) high spectro-photometric quality spectra over the extended optical range (320–1000 nm). I will present the current status of the SNfactory project, from search efficiency to first scientific results, with an emphasis on the spectro-photometric calibration issues and achievements.

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