$PRIMO primordial

Latest papers

1. Numerical estimation of the capture ability of Neptunian mean motion resonances II. Influence of eccentricity and inclination astro-ph.EP · 17 Oct · 1 hit

   …different MMRs and different types of objects will help us understand the dynamical excitation state of the primordial disk in the early Solar System.

2. Breaking the axion abundance-isocurvature relation: Scale invariance and high-scale inflation hep-ph · 16 Oct · 2 hits

   …inflation. The tension arises because the same decay constant controls both the relic abundance and the primordial axion fluctuations. We show how this link can be broken in a broad class of scale-invariant…

3. Multimessenger Probes of Primordial Black Holes with Gravitational Wave and 21 cm Observations astro-ph.CO · 16 Oct · 3 hits

   Primordial black holes (PBHs) formed from the collapse of curvature perturbations in the early universe are…

4. Clustering of JWST LRDs. Implications for PBHs and other early-forming seeds astro-ph.CO · 16 Oct · 1 hit

   …in virialized dark-matter halos, and one in which they are seeded by a dynamically subdominant population of primordial black holes (PBHs). The halo formation scenario accounts for both observables naturally and…

5. Possible detection of Baryon Acoustic Oscillations imprinted in the HI sources from the FASHI catalog astro-ph.CO · 16 Oct · 1 hit

   …establishes a valuable observational baseline for wide-field HI surveys, showing the potential to trace primordial acoustic features even in the low redshift regime, where the transverse BAO signal is dominated by…

6. Simulating dust collapse: the impact of gauge choices on primordial black hole formation gr-qc · 16 Oct · 2 hits

   …why numerical relativity simulations of dust collapse in a matter-dominated era frequently fail before primordial black hole formation due to numerical limitations and inappropriate gauge choices. Using…

7. How do late-time photons "record" primordial curvature perturbations? gr-qc · 15 Oct · 6 hits

   Inflationary cosmology faces a fundamental gap between primordial quantum fluctuations and the classical cosmic history inferred from observations. Although the…

8. Primordial Power Spectrum from the Lensed CMB Temperature Spectrum using Iterative Delensing and Fourier Denoising astro-ph.CO · 15 Oct · 3 hits

   The CMB power spectra are a strong probe of the primordial power spectrum (PPS) of the initial inflationary scalar perturbations. There are many proposed…