Impacts of dark energy on constraining neutrino mass after Planck 2018

Zhang, Ming; Zhang, Jingfei; Zhang, Xin

doi:10.1088/1572-9494/abbb84

Cited by 19 publications

(16 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(ii) In the extended cosmological models (beyond ΛCDM), extra cosmological parameters (from "new physics") cannot be tightly constrained by current cosmological observations, since parameter degeneracies are usually serious. For example, dark-energy equation of state (EoS) w, total neutrino mass m ν , and other extra parameters still cannot be well constrained by the current observations [579][580][581][582][583][584][585][586][587][588][589], due to the strong parameter degeneracies. Since GW standard sirens can measure absolute cosmological distances, they can be used to effectively break the parameter degeneracies existing in the constraints from the traditional EM cosmological observations [590].…”

Section: Standard Sirens Combined With Other Cosmological Probesmentioning

confidence: 99%

The Gravitational-wave physics II: Progress

Bian

Cai

Cao

et al. 2021

Sci. China Phys. Mech. Astron.

Self Cite

View full text Add to dashboard Cite

It has been a half-decade since the first direct detection of gravitational waves, which signifies the coming of the era of the gravitational-wave astronomy and gravitational-wave cosmology. The increasing number of the detected gravitational-wave events has revealed the promising capability of constraining various aspects of cosmology, astronomy, and gravity. Due to the limited space in this review article, we will briefly summarize the recent progress over the past five years, but with a special focus on some of our own work for the Key Project "Physics associated with the gravitational waves" supported by the National Natural Science Foundation of China. In particular, (1) we have presented the mechanism of the gravitational-wave production during some physical processes of the early Universe, such as inflation, preheating and phase transition, and the cosmological implications of gravitational-wave measurements; (2) we have put constraints on the neutron star maximum mass according to GW170817 observations; (3) we have developed a numerical relativity algorithm based on the finite element method and a waveform model for the binary black hole coalescence along an eccentric orbit.

show abstract

Section: Standard Sirens Combined With Other Cosmological Probesmentioning

confidence: 99%

The Gravitational-wave physics II: Progress

Bian

Cai

Cao

et al. 2021

Sci. China Phys. Mech. Astron.

Self Cite

View full text Add to dashboard Cite

show abstract

“…For example, for the Hubble constant H 0 , the Planck-ΛCDM results [217] are in significant tension with the local measurements (which prefer a higher value) [541]; (ii) in the extended cosmological models (beyond ΛCDM), extra cosmological parameters (from "new physics") cannot be tightly constrained by current cosmological observations, since parameter degeneracies are usually serious. For example, dark-energy equation of state (EoS) w, total neutrino mass m ν , and other extra parameters still cannot be well constrained by the current observations [542][543][544][545][546][547][548][549][550][551][552], due to the strong parameter degeneracies. Since GW standard sirens can measure absolute cosmological distances, they can be used to effectively break the parameter degeneracies existing in the constraints from the traditional EM cosmological observations [553].…”

Section: Standard Sirens Combined With Other Cosmological Probesmentioning

confidence: 99%

The Gravitational-Wave Physics II: Progress

Bian,

Cai,

Cao

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

It has been a half-decade since the first direct detection of gravitational waves, which signifies the coming of the era of the gravitational-wave astronomy and gravitationalwave cosmology. The increasing number of the gravitational-wave events has revealed the promising capability of constraining various aspects of cosmology, astronomy, and gravity. Due to the limited space in this review article, we will briefly summarize the recent progress over the past five years, but with a special focus on some of our own works for the Key Project "Physics associated with the gravitational waves" supported by the National Natural Science Foundation of China. Contents 1 Introduction 1 2 Fundamental physics and GW cosmology 3 2.1 Cosmic first-order phase transition 3 2.2 Induced gravitational waves 9 2.3 GWs produced during preheating 13 2.4 Strongly lensed GW multimessenger 16 2.5 Standard siren cosmology 19 3 GW astrophysics 28 3.1 Evolution of NS-WD binaries and its GW radiation 28 3.2 Constraints on the neutron star maximum mass from GW170817 29 3.3 Identifying supermassive binary black holes 32 3.4 GW background from stellar compact binaries 34 3.5 PTA probing solar system dynamics and constructing planet ephemeris 36 3.6 Detecting GWs using PTAs in the SKA era 37 3.7 Forecasting SKA-PTA detection of individual SMBBHs 39 4 Numerical relativity and gravitational waveform template 40 4.1 Numerical relativity with finite element method 41 4.2 Gravitational waveform models for eccentric compact binaries 44 4.3 GW memory models for compact binaries 49 5 Conclusions 53

show abstract

“…These usages enable us to conveniently compare with the constraint results of active neutrinos obtained in previous works, e.g., Refs. [64,65].…”

Section: A Datamentioning

confidence: 99%

Cosmological search for sterile neutrinos after Planck 2018

Feng,

Guo,

Zhang

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Sterile neutrinos can affect the evolution of the universe, and thus using the cosmological observations can search for sterile neutrinos. In this work, we use the cosmic microwave background (CMB) anisotropy data from the Planck 2018 release, combined with the latest baryon acoustic oscillation (BAO), type Ia supernova (SN), and Hubble constant (H0) data, to constrain the cosmological models with considering sterile neutrinos. In order to test the influences of the properties of dark energy on the constraint results of searching for sterile neutrinos, in addition to the Λ cold dark matter (ΛCDM) model, we also consider the wCDM model and the holographic dark energy (HDE) model. We find that sterile neutrinos cannot be detected when the H0 local measurement is not included in the data combination. When the H0 measurement is included in the joint constraints, it is found that ∆N eff > 0 is detected at about 2.7σ level for the ΛCDM model and at about 1-1.7σ level for the wCDM model. However, m eff ν,sterile still cannot be well constrained and only upper limits can be given. In addition, we find that the HDE model is definitely ruled out by the current data. We also discuss the issue of the Hubble tension, and we conclude that involving sterile neutrinos in the cosmological models cannot truly resolve the Hubble tension.

show abstract

Impacts of dark energy on constraining neutrino mass after Planck 2018

Abstract: Considering the mass splittings of three active neutrinos, we investigate how the properties of dark energy affect the cosmological constraints on the total neutrino mass ∑ m ν … Show more

Cited by 19 publications

References 71 publications

The Gravitational-wave physics II: Progress

The Gravitational-wave physics II: Progress

The Gravitational-Wave Physics II: Progress

Cosmological search for sterile neutrinos after Planck 2018

Contact Info

Product

Resources

About