The Dark Energy Survey Supernova Program: Slow supernovae show cosmological time dilation out to
We present a precise measurement of cosmological time dilation using the light curves of
1504 type Ia supernovae from the Dark Energy Survey spanning a redshift range�…
1504 type Ia supernovae from the Dark Energy Survey spanning a redshift range�…
Is the universe static?
DF Crawford�- arXiv preprint arXiv:1804.10274, 2018 - arxiv.org
A fundamental property of an expanding universe is that any time dependent characteristic
of distant objects must appear to scale by the factor $(1+ z $). This is called time dilation�…
of distant objects must appear to scale by the factor $(1+ z $). This is called time dilation�…
Observation of cosmological time dilation using type Ia supernovae as clocks
G Goldhaber, S Deustua, S Gabi, D Groom…�- arXiv preprint astro-ph�…, 1996 - arxiv.org
This work is based on the first results from a systematic search for high redshift Type Ia
supernovae. Using filters in the R-band we discovered seven such SNe, with redshift z= 0.3�…
supernovae. Using filters in the R-band we discovered seven such SNe, with redshift z= 0.3�…
Observation of Cosmological Time Dilation Using Type Ia Supernovae as Clocks: The Supernova Cosmology Project: III
G Goldhaber, S Deustua, S Gabi, D Groom…�- Thermonuclear�…, 1997 - Springer
This work is based on the first results from a systematic search for high redshift Type Ia
supernovae. Using filters in the R-band we discovered seven such SNe, with redshift z= 0.3�…
supernovae. Using filters in the R-band we discovered seven such SNe, with redshift z= 0.3�…
Cosmological time dilation using type Ia supernovae as clocks
G Goldhaber, B Boyle, P Bunclark, D Carter…�- Nuclear Physics B�…, 1996 - Elsevier
Alhough there is little doubt at present that the redshift of distant galaxies is due to an
expansion of the universe, we present in this paper a direct confirmation for the�…
expansion of the universe, we present in this paper a direct confirmation for the�…
Uncorrelated estimates of dark energy evolution
Type Ia supernova data have recently become strong enough to enable, for the first time,
constraints on the time variation of the dark energy density and its equation of state. Most�…
constraints on the time variation of the dark energy density and its equation of state. Most�…
A problem with the analysis of type Ia supernovae
DF Crawford�- Open Astronomy, 2017 - degruyter.com
Type Ia supernovae have light curves that have widths and magnitudes that can be used for
testing cosmologies and they provide one of the few direct measurements of time dilation. It�…
testing cosmologies and they provide one of the few direct measurements of time dilation. It�…
Time dilation in the light curve of the distant type Ia supernova SN 1995K
B Leibundgut, R Schommer, M Phillips…�- The Astrophysical�…, 1996 - iopscience.iop.org
The light curve of a distant Type Ia supernova acts like a clock that can be used to test the
expansion of the universe. SN 1995K, at a spectroscopic redshift of z= 0.479, provides one�…
expansion of the universe. SN 1995K, at a spectroscopic redshift of z= 0.479, provides one�…
Characterising Dark Energy through supernovae
TM Davis, D Parkinson�- arXiv preprint arXiv:1610.09452, 2016 - arxiv.org
Type Ia supernovae are a powerful cosmological probe, that gave the first strong evidence
that the expansion of the universe is accelerating. Here we provide an overview of how�…
that the expansion of the universe is accelerating. Here we provide an overview of how�…
Measuring time dependence of dark energy density from type Ia supernova data
Y Wang, PM Garnavich�- The Astrophysical Journal, 2001 - iopscience.iop.org
Observations of high-redshift supernovae imply an accelerating universe that can only be
explained by an unusual energy component such as vacuum energy or quintessence. To�…
explained by an unusual energy component such as vacuum energy or quintessence. To�…