| Title: |
LOOKING BEYOND LAMBDA WITH THE UNION SUPERNOVA COMPILATION |
| Authors: |
Rubin, D; Linder, EV; Kowalski, M; Aldering, G; Amanullah, R; Barbary, K; Connolly, NV; Dawson, KS; Faccioli, L; Fadeyev, V; Goldhaber, G; Goobar, A; Hook, I; Lidman, C; Meyers, J; Nobili, S; Nugent, PE; Pain, R; Perlmutter, S; Ruiz-Lapuente, P; Spadafora, AL; Strovink, M; Suzuki, N; Swift, H |
| Source: |
The Astrophysical Journal, vol 695, iss 1 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2009 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
5107 Particle and High Energy Physics (for-2020); 51 Physical Sciences (for-2020); cosmology: observations; cosmology: theory; supernovae: general; astro-ph; 0201 Astronomical and Space Sciences (for); 0202 Atomic; Molecular; Nuclear; Particle and Plasma Physics (for); 0306 Physical Chemistry (incl. Structural) (for); Astronomy & Astrophysics (science-metrix); 5101 Astronomical sciences (for-2020); 5109 Space sciences (for-2020) |
| Subject Geographic: |
391 - 403 |
| Description: |
The recent robust and homogeneous analysis of the world's supernova distance–redshift data, together with cosmic microwave background and baryon acoustic oscillation data—provides a powerful tool for constraining cosmological models. Here we examine particular classes of scalar field, modified gravity, and phenomenological models to assess whether they are consistent with observations even when their behavior deviates from the cosmological constant Λ. Some models have tension with the data, while others survive only by approaching the cosmological constant, and a couple are statistically favored over Λ cold dark matter. Dark energy described by two equation-of-state parameters has considerable phase space to avoid Λ and next-generation data will be required to constrain such physics, with the level of complementarity between probes varying with cosmology. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt3xr6s8h4; https://escholarship.org/uc/item/3xr6s8h4; https://escholarship.org/content/qt3xr6s8h4/qt3xr6s8h4.pdf |
| DOI: |
10.1088/0004-637x/695/1/391 |
| Availability: |
https://escholarship.org/uc/item/3xr6s8h4; https://escholarship.org/content/qt3xr6s8h4/qt3xr6s8h4.pdf; https://doi.org/10.1088/0004-637x/695/1/391 |
| Rights: |
public |
| Accession Number: |
edsbas.41DAE39D |
| Database: |
BASE |