Prospective Type Ia Supernova Surveys From Dome A

• Published in: Astroparticle Physics
• Main Authors: Kim, A., Bonissent, A., Christiansen, J.L., Ealet, A., Faccioli, L., Gladney, L., Kushner, G., Linder, E., Stoughton, C., Wang, L.
• Language: unknown
• Published: 2022
• Subjects: 71 CLASSICAL AND QUANTUM MECHANICS; GENERAL PHYSICS; ANTARCTICA; APERTURES; COSMOLOGY; EXPLOSIONS; SUPERNOVAE; TELESCOPES; UNIVERSE; Hubble; Antarc*; Antarctica
• Online Access: http://www.osti.gov/servlets/purl/975173; https://www.osti.gov/biblio/975173; https://doi.org/10.1016/j.astropartphys.2010.02.004

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 {approx}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 ({approx}>4-m) telescopes are capable of discovering supernovae shortly after explosion out to z {approx} 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.