Conveners
Present and future of cosmic microwave background observations: Friday block 1
- Giacomo Galloni (University of Ferrara)
- Margherita Lembo (University of Ferrara)
Present and future of cosmic microwave background observations: Friday block 2
- Margherita Lembo (University of Ferrara)
- Giacomo Galloni (University of Ferrara)
Description
This parallel session focuses on the present and future of cosmic microwave background (CMB) observations, offering a comprehensive overview of the current state of CMB research and the exciting prospects for future advancements in the field. This session offers a comprehensive overview of recent advancements in CMB research, focusing on polarization measurements, spectral distortions, lensing, the Sunyaev-Zel’dovich effect, and relevant astrophysical sources. We invite presentations that illuminate recent findings and ongoing efforts, with particular emphasis on data analysis methodologies and the systematic effects influencing future CMB observations.
The Comic Microwave Background is one of the most powerful cosmological observables, allowing to probe a variety of phenomena, from the Early Universe and high energy physics at scales never achievable in earth facilities, to the evolution of the Universe at much recent epochs. In this talk I will provide an overview of signatures of new fundamental physics, for which the CMB can play the...
Upcoming experiments of the Cosmic Microwave Background (CMB) will reach unprecedented sensitivity to polarization, thus allowing to target the first detection of primordial CMB B-modes and possibly shed new light on reionization history, cosmic birefringence, neutrino masses, and large-scale CMB anomalies. However, accurate measurements of the CMB polarization require exquisite control of...
I will present a recently funded Open Science ERC AdG program that aims to implement a single massively parallel end-to-end framework called "Commander4" for the joint analysis of past, present and future CMB experiments. This framework will build on the existing Commander code that was used by Planck for component separation, and subsequently generalized by the BeyondPlanck and Cosmoglobe...
In this talk I will present cosmological results from the recent work carried on by the BeyondPlanck collaboration: a Bayesian end-to-end analysis of Planck LFI raw data. This novel approach allowed to seamlessly go through all the steps of a classical CMB analysis pipeline in an integrated framework: commander3. Cosmological results we produced are therefore naturally marginalized over all...
Cosmic Microwave Background (CMB) observations traditionally assume an isotropic and homogeneous infinite Universe. However, a growing number of large-scale anomalies and dipoles in the literature suggest the need to revisit these assumptions. A physically well-motivated explanation for these anomalies is the impact of the Universe's topology. Even in a flat Universe, the topology can...
The large-scale $B$-mode polarization of the Cosmic Microwave Background (CMB) holds immense potential for revealing high-energy physics from the early Universe. Detecting this signature would likely indicate the emission of primordial gravitational waves following the Big Bang, providing crucial insights into the physics that created them. However, observing this faint signal is extremely...
Galaxy clusters are the most massive gravitationally bound systems consisting of dark matter, hot baryonic gas and stars. They play an important role in observational cosmology and galaxy evolution studies. We develop a deep learning model for segmentation of Sunyaev-Zeldovich (SZ) signal on ACT+Planck intensity maps and construct a pipeline for microwave cluster detection in the ACT...
