Journal of Cosmology and Astroparticle Physics最新文献

{"title":"The sinusoidal valley: a recipe for high peaks in the scalar and induced tensor spectra","authors":"Aris Katsis","doi":"10.1088/1475-7516/2025/06/010","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/010","url":null,"abstract":"Adding a sine-type interaction to inflationary models with two fields can evoke a classical trajectory with many turns in field space. Under conditions we discuss, the enhancement of the spectrum of adiabatic fluctuations resulting from each turn adds up. A special range of scales away from the CMB-constrained region can then be enhanced by several orders of magnitude, allowing for interesting phenomenological possibilities, such as induced gravitational waves or primordial black holes. A localized version of this interaction can also be used as an add-on to conventional inflationary models, thus allowing the injection of the large peak in their power spectra. The intuition and the conclusions drawn from this simple model remain relevant for more complicated applications that usually include extra terms that obscure the simplicity of the mechanism.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"249 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of light sterile neutrinos on cosmological large scale structure","authors":"Rui Hu, Ming-chung Chu, Shek Yeung and Wangzheng Zhang","doi":"10.1088/1475-7516/2025/06/014","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/014","url":null,"abstract":"Sterile neutrinos with masses on the eV scale are promising candidates to account for the origin of neutrino mass and the reactor neutrino anomalies. The mixing between sterile and active neutrinos in the early universe could result in a large abundance of relic sterile neutrinos, which depends on not only their physical mass mphy but also their degree of thermalization, characterized by the extra effective number of relativistic degrees of freedom ΔNeff. Using neutrino-involved N-body simulations, we investigate the effects of sterile neutrinos on the matter power spectrum, halo pairwise velocity, and halo mass and velocity functions. We find that the presence of sterile neutrinos suppress the matter power spectrum and halo mass and velocity functions, but enhance the halo pairwise velocity. We also provide fitting formulae to quantify these effects.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"20 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6","authors":"Noah Sailer, Joshua Kim, Simone Ferraro, Mathew S. Madhavacheril, Martin White, Irene Abril-Cabezas, Jessica Nicole Aguilar, Steven Ahlen, J. Richard Bond, David Brooks, Etienne Burtin, Erminia Calabrese, Shi-Fan Chen, Steve K. Choi, Todd Claybaugh, Kyle Dawson, Axel de la Macorra, Joseph DeRose, Arjun Dey, Biprateep Dey, Peter Doel, Jo Dunkley, Carmen Embil-Villagra, Gerrit S. Farren, Andreu Font-Ribera, Jaime E. Forero-Romero, Enrique Gaztañaga, Vera Gluscevic, Satya Gontcho A. Gontcho, Klaus Honscheid, Cullan Howlett, Stephanie Juneau, David Kirkby, Theodore Kisner, Anthony Kremin, Martin Landriau, Laurent Le Guillou, Michael Levi, Marc Manera, Aaron Meisner, Ramon Miquel, Kavilan Moodley, John Moustakas, Michael D. Niemack, Gustavo Niz, Nathalie Palanque-Delabrouille, Will Percival, Francisco Prada, Frank J. Qu, Graziano Rossi, Eusebio Sanchez, Emmanuel Schaan, Edward Schlafly, David Schlegel, Michael Schubnell, Neelima Sehgal, Hee-Jong Seo, Blake Sherwin, Cristóbal Sifón..","doi":"10.1088/1475-7516/2025/06/008","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/008","url":null,"abstract":"We infer the growth of large scale structure over the redshift range 0.4 ≲ z ≲ 1 from the cross-correlation of spectroscopically calibrated Luminous Red Galaxies (LRGs) selected from the Dark Energy Spectroscopic Instrument (DESI) legacy imaging survey with CMB lensing maps reconstructed from the latest Planck and ACT data. We adopt a hybrid effective field theory (HEFT) model that robustly regulates the cosmological information obtainable from smaller scales, such that our cosmological constraints are reliably derived from the (predominantly) linear regime. We perform an extensive set of bandpower- and parameter-level systematics checks to ensure the robustness of our results and to characterize the uniformity of the LRG sample. We demonstrate that our results are stable to a wide range of modeling assumptions, finding excellent agreement with a linear theory analysis performed on a restricted range of scales. From a tomographic analysis of the four LRG photometric redshift bins we find that the rate of structure growth is consistent with ΛCDM with an overall amplitude that is ≃ 5-7% lower than predicted by primary CMB measurements with modest (∼ 2σ) statistical significance. From the combined analysis of all four bins and their cross-correlations with Planck we obtain S8 = 0.765 ± 0.023, which is less discrepant with primary CMB measurements than previous DESI LRG cross Planck CMB lensing results. From the cross-correlation with ACT we obtain S8 = 0.790+0.024-0.027, while when jointly analyzing Planck and ACT we find S8 = 0.775+0.019-0.022 from our data alone and σ8 = 0.772+0.020-0.023 with the addition of BAO data. These constraints are consistent with the latest Planck primary CMB analyses at the ≃ 1.6-2.2σ level, and are in excellent agreement with galaxy lensing surveys.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"20 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Full-Shape analysis of the power spectrum and bispectrum of DESI DR1 LRG and QSO samples","authors":"S. Novell-Masot, H. Gil-Marín, L. Verde, J. Aguilar, S. Ahlen, S. Bailey, S. BenZvi, D. Bianchi, D. Brooks, E. Buckley-Geer, A. Carnero Rosell, E. Chaussidon, T. Claybaugh, S. Cole, A. Cuceu, K.S. Dawson, A. de la Macorra, R. Demina, A. Dey, B. Dey, P. Doel, S. Ferraro, A. Font-Ribera, J.E. Forero-Romero, E. Gaztañaga, S.Gontcho A. Gontcho, A.X. Gonzalez-Morales, G. Gutierrez, H.K. Herrera-Alcantar, K. Honscheid, C. Howlett, S. Juneau, R. Kehoe, D. Kirkby, T. Kisner, A. Kremin, C. Lamman, M. Landriau, L. Le Guillou, M.E. Levi, C. Magneville, M. Manera, A. Meisner, R. Miquel, J. Moustakas, A. Muñoz-Gutiérrez, A.D. Myers, S. Nadathur, G. Niz, H.E. Noriega, W.J. Percival, C. Poppett, F. Prada, I. Pérez-Ràfols, A.J. Ross, G. Rossi, L. Samushia, E. Sanchez, D. Schlegel, M. Schubnell, H. Seo, J. Silber, D. Sprayberry, G. Tarlé, M. Vargas-Magaña, B.A. Weaver, P. Zarrouk, R. Zhou and H. Zou","doi":"10.1088/1475-7516/2025/06/005","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/005","url":null,"abstract":"We present the first joint analysis of the power spectrum and bispectrum using the Data Release 1 (DR1) of the Dark Energy Spectroscopic Instrument (DESI), focusing on Luminous Red Galaxies (LRGs) and quasars (QSOs) across a redshift range of 0.4 ≤ z ≤ 2.1. By combining the two- and three-point statistics, we are able to partially break the degeneracy between the logarithmic growth rate, f(z), and the amplitude of dark matter fluctuations, σs8(z), which cannot be measured separately in analyses that only involve the power spectrum. In comparison with the (fiducial) Planck ΛCDM cosmology we obtain f/ffid = {0.888-0.089+0.186,0.977-0.220+0.182,1.030-0.085+0.368}, σs8/σfids8 = {1.224-0.133+0.091,1.071-0.163+0.278,1.00 0-0.223+0.088} respectively for the three LRG redshift bins, corresponding to a cumulative 10.1% constraint on f, and of 8.4% on σs8, including the systematic error budget. Additionally, we obtain constraints for the ShapeFit compressed parameters describing the isotropic scaling parameter, αiso(z), the Alcock-Paczyński parameter, αAP(z), the combined growth of structure parameter fσs8(z), and the combined shape parameter m(z)+n(z). Their cumulative constraints from our joint power spectrum-bispectrum analysis are respectively σαiso = 0.9% (9% improvement with respect to our power spectrum-only analysis); σαAP = 2.3% (no improvement with respect to power spectrum-only analysis, which is expected given that the bispectrum monopole has no significant anisotropic signal); σfσs8 = 5.1% (9% improvement); σm+n = 2.3% (11% improvement). These results are fully consistent with the main DESI power spectrum analysis, demonstrating the robustness of the DESI cosmological constraints, and compatible with Planck ΛCDM cosmology.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"18 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dependence of the estimated electric potential in thunderstorms observed at GRAPES-3 on the hadronic interaction generators used in simulations","authors":"B. Hariharan, S.K. Gupta, Y. Hayashi, P. Jagadeesan, A. Jain, S. Kawakami, H. Kojima, P.K. Mohanty, Y. Muraki, P.K. Nayak, A. Oshima, M. Rameez, K. Ramesh, L.V. Reddy, S. Shibata and M. Zuberi","doi":"10.1088/1475-7516/2025/06/012","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/012","url":null,"abstract":"A potential difference of 1.3 Giga-Volts (GV) was inferred across a thundercloud using data from the GRAPES-3 muon telescope (G3MT) [1]. This was the first-ever estimation of gigavolt potential in thunderstorms, confirming prediction of C.T.R. Wilson almost a century ago. To infer the thundercloud potential required acceleration of muons in atmospheric electric field to be incorporated in the Monte Carlo simulation software CORSIKA. The G3MT records over 4 billion muons daily that are grouped into 169 directions covering 2.3 sr sky. This enabled changes as small as 0.1% in the muon intensity on minute timescale, caused by thunderstorms to be accurately measured. But that requires high statistics simulation of muons in thunderstorm electric fields. The CORSIKA offers a choice of several generators for low- (FLUKA, GHEISHA, and UrQMD) and high-energy (SIBYLL, EPOS-LHC, and QGSJETII) hadronic interactions. Since it is unclear which combination of the low- and high-energy generators provides the correct description of hadronic interactions, all nine combinations of generators were explored, and they yielded thundercloud potentials ranging from 1.3 GV to 1.6 GV for the event recorded on 1 December 2014. The result of SIBYLL-FLUKA combination yielded the lowest thundercloud potential of 1.3 GV was reported. Furthermore, another seven major thunderstorm events recorded between April 2011 and December 2020 were analyzed to measure the dependence of their thundercloud potential on the hadronic interaction generators. It is observed that the low-energy generators produce larger variation (∼ 14%) in thundercloud potential than the high-energy generators (∼ 8%). This probably reflects the fact that the GeV muons are predominantly produced in low-energy (< 80 GeV) interactions, which effectively magnifies the differences in the meson production cross-sections among the low-energy generators.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"85 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling the BOSS void-galaxy cross-correlation function using a neural-network emulator","authors":"Tristan S. Fraser, Enrique Paillas, Will J. Percival, Seshadri Nadathur, Slađana Radinović and Hans A. Winther","doi":"10.1088/1475-7516/2025/06/001","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/001","url":null,"abstract":"We introduce an emulator-based method to model the cross-correlation between cosmological voids and galaxies. This allows us to model the effect of cosmology on void finding and on the shape of the void-galaxy cross-correlation function, improving on previous template-based methods. We train a neural network using the AbacusSummit simulation suite and fit to data from the Sloan Digital Sky Survey Baryon Oscillation Spectroscopic Survey sample. We recover information on the growth of structure through redshift-space distortions (RSD), and the geometry of the Universe through the Alcock-Paczyński (AP) effect, measuring Ωm = 0.330 ± 0.020 and σ8 = 0.777+0.047-0.062 for a ΛCDM cosmology. Comparing to results from a template-based method, we find that fitting the shape of the void-galaxy cross-correlation function provides more information and leads to an improvement in constraining power. In contrast, we find that errors on the AP measurements were previously underestimated if void centres were assumed to have the same response to the AP effect as galaxies — a common simplification. Overall, we recover a 28% reduction in errors for Ω8 and similar errors on σ8 with our new method. Given the statistical power of future surveys including DESI and Euclid, we expect the method presented to become the new baseline for the analysis of voids in these data.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"97 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Testing inflation on all scales: a case study with α-attractors","authors":"Laura Iacconi, Michael Bacchi, Luiz Filipe Guimarães and Felipe T. Falciano","doi":"10.1088/1475-7516/2025/06/004","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/004","url":null,"abstract":"A plethora of inflationary models have been shown to produce interesting small-scale phenomenology, such as enhanced scalar fluctuations leading to primordial black hole (PBH) production and large scalar-induced gravitational waves (GW). Nevertheless, good models must simultaneously explain current observations on all scales. In this work, we showcase our methodology to establish the small-scale phenomenology of inflationary models on firm grounds. We consider the case of hybrid cosmological α-attractors, and focus on a reduced parameter space featuring the two potential parameters which roughly determine the position of the peak in the scalar power spectrum, 𝒫ζ, and its amplitude. We first constrain the parameter space by comparing the large-scale predictions for 𝒫ζ with current CMB anisotropies measurements and upper limits on μ-distortions. We take into account uncertainties due to the reheating phase, and observe that the parameter-space area compatible with large-scale constraints shrinks for extended reheating stages. We then move to smaller scales, where we find that non-Gaussianity at peak scales is of the local type and has amplitude fNL ∼ 𝒪(0.1). This ensures that non-linear effects are subdominant, motivating us to employ the tree-level 𝒫ζ to compute the abundance of PBHs and the spectrum of induced GWs for models consistent with large-scale tests. The former allows us to further constrain the parameter space, by excluding models which over-produce PBHs. We find that a subset of viable models can lead to significant production of PBHs, and a fraction of these is within reach for LISA, having a signal-to-noise ratio larger than that of astrophysical foregrounds. Our first-of-its-kind study systematically combines tests at different scales, and exploits the synergy between cosmological observations and theoretical consistency requirements. As such, it represents the first step towards establishing a paradigm for constraining inflation on all scales.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"10 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inferring IGM parameters from the redshifted 21-cm power spectrum using Artificial Neural Networks","authors":"Madhurima Choudhury, Raghunath Ghara, Saleem Zaroubi, Benedetta Ciardi, Leon V.E. Koopmans, Garrelt Mellema, Abinash Kumar Shaw, Anshuman Acharya, I.T. Iliev, Qing-Bo Ma and Sambit K. Giri","doi":"10.1088/1475-7516/2025/06/003","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/003","url":null,"abstract":"The high redshift 21-cm signal promises to be a crucial probe of the state of the intergalactic medium (IGM). Understanding the connection between the observed 21-cm power spectrum and the physical quantities intricately associated with the IGM is crucial to fully understand the evolution of our Universe. In this study, we develop an emulator using artificial neural network (ANN) to predict the 21-cm power spectrum from a given set of IGM properties, namely, the bubble size distribution and the volume averaged ionization fraction. This emulator is implemented within a standard Bayesian framework to constrain the IGM parameters from a given 21-cm power spectrum. We compare the performance of the Bayesian method to an alternate method using ANN to predict the IGM parameters from a given input power spectrum, and find that both methods yield similar levels of accuracy, while the ANN is significantly faster. We also use this ANN method of parameter estimation to predict the IGM parameters from a test set contaminated with noise levels expected from the SKA-LOW instrument after 1000 hours of observation. Finally, we train a separate ANN to predict the source parameters from the IGM parameters directly, at a redshift of z = 9.1, demonstrating the possibility of a non-analytic inference of the source parameters from the IGM parameters for the first time. We achieve high accuracies, with R2-scores ranging between 0.898–0.978 for the ANN emulator and between 0.966–0.986 and 0.817–0.981 for the predictions of IGM parameters from 21-cm power spectrum and source parameters from IGM parameters, respectively. The predictions of the IGM parameters from the Bayesian method incorporating the ANN emulator leads to tight constraints on the IGM parameters.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"20 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cosmological perturbation theory for large scale structure in phase space","authors":"Caio Nascimento and Marilena Loverde","doi":"10.1088/1475-7516/2025/06/002","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/06/002","url":null,"abstract":"We develop a framework for Large Scale Structure (LSS) perturbation theory, that solves the Vlasov-Poisson system of equations for the distribution function in full phase space. This approach relaxes the usual apriori assumption of negligible velocity dispersion underlying the Standard Perturbation Theory (SPT). We apply the new method to rederive the usual SPT kernels up to third order in the perturbative expansion. We also show that a counterterm, identical to the one introduced by standard Effective Field Theory (EFT) methods, naturally arises within our framework. We finish by making a precise connection to EFT techniques, which reveals the necessity of the EFTofLSS to self-consistently model the long-wavelength fluid, and illustrates the importance of having theoretical control over short distance fluctuations.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"36 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The long road to the Green Valley: Tracing the evolution of the Green Valley galaxies in the EAGLE simulation","authors":"Apashanka Das, Biswajit Pandey","doi":"10.1088/1475-7516/2025/05/101","DOIUrl":"https://doi.org/10.1088/1475-7516/2025/05/101","url":null,"abstract":"We study the evolution of the progenitors of the present-day Green Valley (GV) galaxies across redshift <italic toggle=\"yes\">z</italic> = 10 - 0 using data from the EAGLE simulations. We identify the present-day green valley galaxies using entropic thresholding and track the evolution of the physical properties of their progenitors up to <italic toggle=\"yes\">z</italic> = 10. Our study identifies three distinct phases in their evolution: (i) an early growth phase (<italic toggle=\"yes\">z</italic> = 10 - 6), where progenitors are gas-rich, efficiently form stars, and experience AGN feedback regulating star formation in massive galaxies, (ii) a transition phase (<italic toggle=\"yes\">z</italic> = 6 - 2), marked by frequent interactions and mergers in higher-density environments, driving starbursts, depleting gas reservoirs, and strengthening correlations between cold gas and halo properties, and (iii) a quenching phase (<italic toggle=\"yes\">z</italic> = 2 - 0), dominated by environmental and mass-dependent processes that suppress star formation and deplete cold gas. Our analysis shows that at <italic toggle=\"yes\">z</italic> &lt; 1, environmental factors and cold gas depletion dominate quenching, with tighter correlations between stellar mass, SFR, and cold gas content. The interplay between mass and environmental density during this period drives diverse and distinct evolutionary pathways. Our analysis shows that majority of the main progenitor branches of the present-day GV galaxies entered the green valley at <italic toggle=\"yes\">z</italic> &lt; 1. We also find that a small fraction (∼ 5%) of the main progenitor branches had already crossed the green valley and joined the red sequence by <italic toggle=\"yes\">z</italic> = 0.1, indicating that some galaxies may undergo late-time rejuvenation, that allows them to reenter the green valley by the present day. Our findings provide a comprehensive view of the mechanisms shaping the GV population across cosmic time.","PeriodicalId":15445,"journal":{"name":"Journal of Cosmology and Astroparticle Physics","volume":"45 1","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}