Dark Energy and Matter with Large Scale Structure Observations
Principal Investigator: Carlo Baccigalupi
Area:
- Astroparticle Physics
- Early Universe
- Structures in the Universe and Emergent Phenomena
- Theory and Phenomenology of Gravity
Abstract: The web represented by the Large Scale Structure (LSS) in the Universe is the most important front for understanding Dark Energy and Matter through modern cosmological observations. Existing projects, such as the Euclid satellite and the Large Scale Structure Telescope (LSST), are currently in preparation and will be operational for the entire next decade at least. Members of the present proposal have responsibility roles in the preparatory work for these efforts and the subsequent exploitation of the data. We propose to implement this line of research at the IFPU, exploiting the single location to gather all interested scientists in order to achieve coordination between various projects, growth of collaborations, production of original investigations, and maximizing the return from the results of ongoing observations.
Status of project and perspectives: The research on LSS represents a cross over for modern astrophysics and cosmology. The knowledge of Stellar Physics, Galaxy Formation and evolution, and their interplay with the Dark Matter and the Dark Energy are aspects which need to be connected and coordinated in order to maximize their impact. The IFPU offers an unique opportunity for scientists working at the different aspects to gather together in a single space, working on specific aspects, as well as overviewing the whole efforts, hosting dedicated meetings, scientific visits, and workshops. The team of proposers will host brainstormings and meetings on a weely basis at the IFPU, spending at the institute 2 days per week, as well as organizing regular seminars at the site. Moreover, the team will create and propose a living program of visits, dedicated and focussed meetings, and workshops throughout the academic year. We plan to make a gross planning of activities at the beginning of each academic year, but to refine the program on a montly or weekly basis. The activities will be constantly mirrored on the IFPU site and will be set in coordination with members from the four founding institutions.
Publications:
- Tomography-based observational measurements of the halo mass function via the submillimeter magnification bias
- Galaxy cluster mass density profile derived using the submillimetre galaxies magnification bias
- Cosmology with the submillimetre galaxies magnification bias.Tomographic analysis
- A Stochastic Theory of the Hierarchical Clustering. II. Halo Progenitor Mass Function and Large-scale Bias
- Cosmological constraints on the magnification bias on sub-millimetre galaxies after large-scale bias corrections
- Revised estimates of CMB B-mode polarization induced by patchy reionization
- A Stochastic Theory of the Hierarchical Clustering. I. Halo Mass Function
- Cosmology with the submillimetre galaxies magnification bias: Proof of concept
- A direct and robust method to observationally constrain the halo mass function via the submillimeter magnification bias: Proof of concept
- SCAMPY, A sub-halo clustering and abundance matching based PYTHON interface for painting galaxies on the dark matter halo/sub-halo hierarchy
- H0 Reconstruction with Type Ia Supernovae, Baryon Acoustic Oscillation and Gravitational Lensing Time Delay
- Constraints on the spacetime dynamics of an early dark energy component
- Sources of H0-tension in dark energy scenarios
- Euclid preparation. VII. Forecast validation for Euclid cosmological probes
- Late-time decaying dark matter: constraints and implications for the H0-tension
- Mixed dark matter: matter power spectrum and halo mass function