Prospective Type Ia Supernova Surveys From Dome A

• Main Authors: Kim, A., Bonissent, A., Christiansen, J. L., Ealet, A., Faccioli, L., Gladney, L., Kushner, G., Linder, E., Stoughton, C., Wang, L.
• Format: Text
• Language: unknown
• Published: arXiv 2010
• Subjects: Cosmology and Nongalactic Astrophysics astro-ph.CO; FOS Physical sciences; Hubble; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.48550/arxiv.1002.2948; https://arxiv.org/abs/1002.2948

Dome A, the highest plateau in Antarctica, is being developed as a site for an astronomical observatory. The planned telescopes and instrumentation and the unique site characteristics are conducive toward Type Ia supernova surveys for cosmology. A self-contained search and survey over five years can yield a spectro-photometric time series of ~1000 z<0.08 supernovae. These can serve to anchor the Hubble diagram and quantify the relationship between luminosities and heterogeneities within the Type Ia supernova class, reducing systematics. Larger aperture (>4-m) telescopes are capable of discovering supernovae shortly after explosion out to z~3. These can be fed to space telescopes, and can isolate systematics and extend the redshift range over which we measure the expansion history of the universe. : 10 pages, 10 figures, accepted for publication in Astroparticle Physics