Road to primordial B-modes -- A strategy for CMB polarization

Authors
Dr.
Osamu Tajima
Date and time
3 Sep 2013 - 12:30 Europe/London
Address

Aula

Talk language
English
Slides language
English
Serie number
1
Description

Precise measurements of cosmic microwave background (CMB) polarization, especially its odd-parity patterns (B-modes) at large angular scale, prove a scenario of inflationary universe. Many experiments are aiming to detect them. High Energy Accelerator Research Organization (KEK) have joined the race for the B-modes search from 2007; we have started our activity with the QUIET collaboration. Our goal is measurements of the B-modes "spectrum", especially both ionization bump and the first peak. Satellite mission and the ground based experiments toward it allow such measurements. In this talk, I will show the achievements of QUIET which used similar instrumental technique as QUIJOTE. I will also introduce other activities towards our goal.

Format
Seminar

It may interest you

  • Probing the early Universe with gravitational Wave Background
    We will review both theoretical and obsevational aspects of gravitational wave backgrounds of cosmological origin. We will present a classifcation of backgrounds and a quantification of our ability to use them as a probe of early Universe phenomena, opening a new observational window to energy scales well above the reach of any terrestrial means
    Dr.
    Daniel G. Figueroa

    Aula

    21 Nov 2023 - 10:00 Europe/London
    Past
  • Transient submm sources with Simons Observatory
    Simons Observatory (SO) is a new Cosmic Microwave Background telescope currently under construction in the Atacama Desert, close to ALMA and other recent CMB telescopes. It will have six small aperture (42cm) telescopes (SATs), and one large aperture (6m) telescope (LAT), observing at 30-280GHz (1-10mm) using transition edge sensors (TES) and
    Dr.
    Mike Peel
    Imperial College London

    Aula

    26 Sep 2023 - 11:30 Europe/London
    Past
    Talk Video
    https://youtu.be/tRjiJVbop5I
  • The galaxy-halo connection in the cosmic web
    Galaxies and the dark matter halos in which they reside are intrinsically connected. That relationship holds information about key processes in galaxy and structure formation. In this talk, I will consider how the galaxy-halo connection depends on position within the cosmic web - the familiar decomposition of large-scale structure in filaments
    Rita Tojeiro

    Aula

    28 Mar 2023 - 12:30 Europe/London
    Past
    Talk Video
    https://youtu.be/1q-4CLaYMUA