Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2011-01-07
Monthly Notices of the Royal Astronomical Society Volume 415, Issue 1, 2011, 143-152
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
Added clarifications following referee report, main results unchanged. Matched version accepted by MNRAS
Scientific paper
10.1111/j.1365-2966.2011.18679.x
We extend the Figure of Merit formalism usually adopted to quantify the statistical performance of future dark energy probes to assess the robustness of a future mission to plausible systematic bias. We introduce a new robustness Figure of Merit which can be computed in the Fisher Matrix formalism given arbitrary systematic biases in the observable quantities. We argue that robustness to systematics is an important new quantity that should be taken into account when optimizing future surveys. We illustrate our formalism with toy examples, and apply it to future type Ia supernova (SNIa) and baryonic acoustic oscillation (BAO) surveys. For the simplified systematic biases that we consider, we find that SNIa are a somewhat more robust probe of dark energy parameters than the BAO. We trace this back to a geometrical alignement of systematic bias direction with statistical degeneracy directions in the dark energy parameter space.
Amendola Luca
Huterer Dragan
March M. C.
Trotta Roberto
No associations
LandOfFree
Robustness to systematics for future dark energy probes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Robustness to systematics for future dark energy probes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robustness to systematics for future dark energy probes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-7945