Closing the cosmological loop with the redshift drift

Martins, C. J. A. P.; Alves, Claudia; Esteves, J.; Lapel, A.; Pereira, Bruna

doi:10.48550/arxiv.2110.12242

Cited by 1 publication

(3 citation statements)

References 16 publications

(14 reference statements)

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“…When current or future expected priors are included, cosmological parameter constraints of $ 1% can be obtained. Moreover, Martins et al (2021) show that the redshift drift can break parameter degeneracies in traditional cosmological probes.…”

Section: Main Results and Forecastsmentioning

confidence: 99%

“…Finally, the flat w 0 w a CDM model shows a mixed picture with uncertainties of 17% in H 0 , 8% in X m , AE0:1 in w 0 , and AE0:3 in w a , with strong correlation between all parameters. In analyses comparing various redshift drift measurement methods, Martins et al (2021) and Esteves et al (2021) show that there is no "best" method and caution that the choice of measurement should be tailored to specific science goals (e.g., constraining X m versus the dark energy equation of state). correlation between parameters measured by the secular redshift drift suggests that this method would benefit from joint analyses with other cosmological probes (non-standard and otherwise, see Sect.…”

Section: Main Results and Forecastsmentioning

confidence: 99%

“…Nevertheless, a measurement of _ z is a model-independent indication of the presence of dark energy (Heinesen 2021), and offers a means to directly determine the cosmic expansion history. It also offers some improvement on cosmological priors when combined with more traditional measurements (Alves et al 2019), and notably tends to break parameter degeneracies in traditional comsological probes (Martins et al 2021).…”

Section: Secular Redshift Driftmentioning

confidence: 99%

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Unveiling the Universe with emerging cosmological probes

et al. 2022

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The detection of the accelerated expansion of the Universe has been one of the major breakthroughs in modern cosmology. Several cosmological probes (Cosmic Microwave Background, Supernovae Type Ia, Baryon Acoustic Oscillations) have been studied in depth to better understand the nature of the mechanism driving this acceleration, and they are being currently pushed to their limits, obtaining remarkable constraints that allowed us to shape the standard cosmological model. In parallel to that, however, the percent precision achieved has recently revealed apparent tensions between measurements obtained from different methods. These are either indicating some unaccounted systematic effects, or are pointing toward new physics. Following the development of CMB, SNe, and BAO cosmology, it is critical to extend our selection of cosmological probes. Novel probes can be exploited to validate results, control or mitigate systematic effects, and, most importantly, to increase the accuracy and robustness of our results. This review is meant to provide a state-of-art benchmark of the latest advances in emerging “beyond-standard” cosmological probes. We present how several different methods can become a key resource for observational cosmology. In particular, we review cosmic chronometers, quasars, gamma-ray bursts, standard sirens, lensing time-delay with galaxies and clusters, cosmic voids, neutral hydrogen intensity mapping, surface brightness fluctuations, stellar ages of the oldest objects, secular redshift drift, and clustering of standard candles. The review describes the method, systematics, and results of each probe in a homogeneous way, giving the reader a clear picture of the available innovative methods that have been introduced in recent years and how to apply them. The review also discusses the potential synergies and complementarities between the various probes, exploring how they will contribute to the future of modern cosmology.

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Section: Main Results and Forecastsmentioning

confidence: 99%

Section: Main Results and Forecastsmentioning

confidence: 99%