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Observing SNe Ia at z > 1 with the HST and at z ≃ 0.2 with the SDSS-II

Published online by Cambridge University Press:  01 August 2006

Hubert Lampeitl  and
Adam G. Riess
Hubert Lampeitl
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
Adam G. Riess
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
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Abstract

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SNe Ia are currently providing the most direct measurements of the accelerated expansion of the Universe and also put constraints on the nature and evolution of the so-called ‘dark energy’. Despite major efforts to increase the number of known high-redshift SNe Ia with reliable distance estimates, two regions in the Hubble diagram remain only sparsely observed. At redshifts z > 1 the limitations of ground-based instruments require the Hubble Space Telescope and its superior angular resolution to get meaningful distance estimates, while at intermediate redshifts (z ≃ 0.2) the large solid angle necessary presents an obstacle to most surveys that can be overcome with the Sloan Digital Sky Survey, SDSS-II.

Keywords

cosmological parameterscosmology: observationssupernovae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Highlights of Astronomy 14: Highlights of Astronomy , August 2006 , pp. 314 - 315
Copyright
Copyright © International Astronomical Union 2007

References

Astier, P., Guy, J., Regnault, N., et al. 2006, A&A, 447, 31Google Scholar
Giavalisco, M., Ferguson, H. C., Koekemoer, A. M., et al. 2004, ApJ (Letters), 600, L93CrossRefGoogle Scholar
Lampeitl, H., SDSS-SN Collaboration 2006, AAS Meeting Abstracts, 208, #58.01Google Scholar
Matheson, Th., Blondin, S., Foley, R. J., et al. 2005, AJ, 129, 2352CrossRefGoogle Scholar
Prieto, J., Garnavich, P., Depoy, D., et al. 2005, IAU Circular 8633, 1Google Scholar
Riess, A. G., Strolger, L.-G., Tonry, J., et al. 2004, ApJ, 607, 665CrossRefGoogle Scholar
Sako, M., Romani, R., Frieman, J.(SDSS collaboration), et al. 2005, in: Proc. 22nd Texas Symp. on Relativistic Astrophysics [astro-ph/0404455]Google Scholar
SDSS-SN webpage: http://sdssdp47.fnal.gov/sdsssn/sdsssn.htmlGoogle Scholar
SDSS telegrams: CBET 304, CBET 611, CBET 621, CBET 623, CBET 624, CBET 627, CBET 629, IAU Circular 8359, IAU Circular 8481Google Scholar