PIRSA:23010094

Probing reionization and structure formation with CMB and multi-line intensity mapping

Roy, A. (2023). Probing reionization and structure formation with CMB and multi-line intensity mapping. Perimeter Institute. https://pirsa.org/23010094

Roy, Anirban. Probing reionization and structure formation with CMB and multi-line intensity mapping. Perimeter Institute, Jan. 09, 2023, https://pirsa.org/23010094 

          @misc{ pirsa_PIRSA:23010094,
            doi = {10.48660/23010094},
            url = {https://pirsa.org/23010094},
            author = {Roy, Anirban},
            keywords = {Cosmology},
            language = {en},
            title = {Probing reionization and structure formation with CMB and multi-line intensity mapping},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {jan},
            note = {PIRSA:23010094 see, \url{https://pirsa.org}}
          }

Anirban Roy

Cornell University

Talk number
PIRSA:23010094
Collection
Talk Type
Subject
Abstract

The observation of the Cosmic Microwave Background (CMB) is a powerful probe to unravel many mysteries of the late-time Universe. During the first half of the talk, I will discuss how future low-noise and high-resolution CMB experiments can be used to probe the detailed physics of reionization, constraining the morphology, shape, and temperature of ionized bubbles. Furthermore, I will talk about the prospects of LSS x CMB to understand the thermodynamic properties of gas in the halos. In the second part of my talk, I will also talk about "line intensity mapping", a novel technique that will provide us with new information from the star formation in galaxies to the expansion of our Universe. Mentioning the viable challenges, I will discuss the estimators to extract the signal in the presence of interlopers and instrumental noise. I will also describe how the MLIM could help us to perform cross-correlations with complementary probes such as CMB lensing and galaxy field. In the end, I will present the constraints on astrophysical and cosmological parameters that we hope to achieve from future intensity mapping observations.

Zoom link:  https://pitp.zoom.us/j/93308659447?pwd=VVM2czBWc0NTeTA5eTRWdzVFRUtndz09