J-PAS and PFS surveys in the era of dark energy and neutrino mass measurements
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866918313914793984 |
|---|---|
| author | Qin, Fuxing Wang, Yuting Zhao, Gong-Bo Cuesta, Antonio J. Alcaniz, Jailson Rodrigues, Gabriel Resco, Miguel Aparicio Maroto, Antonio Lopez Masip, Manuel Rodrigues, Jamerson G. Santos, Felipe B. M. dos Perez, Javier de Cruz Garcia-Farieta, Jorge Enrique Abramo, Raul Benitez, Narciso Bonoli, Silvia Carneiro, Saulo Cenarro, Javier Cristobal-Hornillos, David Dupke, Renato Ederoclite, Alessandro Hernan-Caballero, Antonio Hernandez-Monteagudo, Carlos Lopez-Sanjuan, Carlos Marin-Franch, Antonio de Oliveira, Claudia Mendes Moles, Mariano Sodre Jr., Laerte Taylor, Keith Varela, Jesus Ramio, Hector Vazquez |
| author_facet | Qin, Fuxing Wang, Yuting Zhao, Gong-Bo Cuesta, Antonio J. Alcaniz, Jailson Rodrigues, Gabriel Resco, Miguel Aparicio Maroto, Antonio Lopez Masip, Manuel Rodrigues, Jamerson G. Santos, Felipe B. M. dos Perez, Javier de Cruz Garcia-Farieta, Jorge Enrique Abramo, Raul Benitez, Narciso Bonoli, Silvia Carneiro, Saulo Cenarro, Javier Cristobal-Hornillos, David Dupke, Renato Ederoclite, Alessandro Hernan-Caballero, Antonio Hernandez-Monteagudo, Carlos Lopez-Sanjuan, Carlos Marin-Franch, Antonio de Oliveira, Claudia Mendes Moles, Mariano Sodre Jr., Laerte Taylor, Keith Varela, Jesus Ramio, Hector Vazquez |
| contents | Fisher-matrix forecasts are presented for the cosmological surveys of the Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) and the Subaru Prime Focus Spectrograph (PFS). The wide, low-redshift coverage of J-PAS and the high-density, high-redshift mapping of PFS are strongly complementary: combining the two reduces marginalized uncertainties on all primary parameters compared with either survey individually. Adding the joint J-PAS+PFS data to next-generation CMB measurements from the Simons Observatory (SO) and \textsc{LiteBird} yields an expected precision of $σ(\sum m_ν)=0.017\,$eV in the $Λ$CDM$+\sum m_ν+N_{\rm eff}$ framework, sufficient to disfavour the inverted neutrino hierarchy at $2.34\,σ$ if the true mass sum equals the normal-ordering minimum. Motivated by recent DESI results, we also forecast within a $w_0w_a$CDM$+\sum m_ν+N_{\rm eff}$ cosmology, adopting the DESI\,DR2 best-fit values ($w_0=-0.758$, $w_a=-0.82$) as fiducial. The combination CMB+J-PAS+PFS then delivers $σ(w_0)=0.044$ and $σ(w_a)=0.18$, corresponding to a $5.1\,σ$ preference for a time-varying dark-energy equation of state. These findings show that J-PAS and PFS, especially when coupled with Stage-IV CMB observations, will provide competitive tests of neutrino physics and the dynamics of cosmic acceleration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_04275 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | J-PAS and PFS surveys in the era of dark energy and neutrino mass measurements Qin, Fuxing Wang, Yuting Zhao, Gong-Bo Cuesta, Antonio J. Alcaniz, Jailson Rodrigues, Gabriel Resco, Miguel Aparicio Maroto, Antonio Lopez Masip, Manuel Rodrigues, Jamerson G. Santos, Felipe B. M. dos Perez, Javier de Cruz Garcia-Farieta, Jorge Enrique Abramo, Raul Benitez, Narciso Bonoli, Silvia Carneiro, Saulo Cenarro, Javier Cristobal-Hornillos, David Dupke, Renato Ederoclite, Alessandro Hernan-Caballero, Antonio Hernandez-Monteagudo, Carlos Lopez-Sanjuan, Carlos Marin-Franch, Antonio de Oliveira, Claudia Mendes Moles, Mariano Sodre Jr., Laerte Taylor, Keith Varela, Jesus Ramio, Hector Vazquez Cosmology and Nongalactic Astrophysics Fisher-matrix forecasts are presented for the cosmological surveys of the Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) and the Subaru Prime Focus Spectrograph (PFS). The wide, low-redshift coverage of J-PAS and the high-density, high-redshift mapping of PFS are strongly complementary: combining the two reduces marginalized uncertainties on all primary parameters compared with either survey individually. Adding the joint J-PAS+PFS data to next-generation CMB measurements from the Simons Observatory (SO) and \textsc{LiteBird} yields an expected precision of $σ(\sum m_ν)=0.017\,$eV in the $Λ$CDM$+\sum m_ν+N_{\rm eff}$ framework, sufficient to disfavour the inverted neutrino hierarchy at $2.34\,σ$ if the true mass sum equals the normal-ordering minimum. Motivated by recent DESI results, we also forecast within a $w_0w_a$CDM$+\sum m_ν+N_{\rm eff}$ cosmology, adopting the DESI\,DR2 best-fit values ($w_0=-0.758$, $w_a=-0.82$) as fiducial. The combination CMB+J-PAS+PFS then delivers $σ(w_0)=0.044$ and $σ(w_a)=0.18$, corresponding to a $5.1\,σ$ preference for a time-varying dark-energy equation of state. These findings show that J-PAS and PFS, especially when coupled with Stage-IV CMB observations, will provide competitive tests of neutrino physics and the dynamics of cosmic acceleration. |
| title | J-PAS and PFS surveys in the era of dark energy and neutrino mass measurements |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2505.04275 |