The 4th Toyama International Symposium on "Physics at the Cosmic Frontier" (PCF2022-2023)
from
Friday, 30 September 2022 (17:00)
to
Friday, 31 March 2023 (18:00)
Monday, 26 September 2022
Tuesday, 27 September 2022
Wednesday, 28 September 2022
Thursday, 29 September 2022
Friday, 30 September 2022
Saturday, 1 October 2022
Sunday, 2 October 2022
Monday, 3 October 2022
Tuesday, 4 October 2022
Wednesday, 5 October 2022
13:00
seminar 1: "First Identification of a CMB Lensing Signal Produced by 1.5 Million Galaxies at z∼4"
-
Yuichi Harikane
(
ICRR
)
seminar 1: "First Identification of a CMB Lensing Signal Produced by 1.5 Million Galaxies at z∼4"
Yuichi Harikane
(
ICRR
)
13:00 - 03:30
Room: A425
We report the first detection of the dark matter distribution around Lyman break galaxies (LBGs) at the redshift of z~4 through the cosmic microwave background (CMB) lensing measurements with the public Planck PR3 κ map. The LBG sample consists of 1473106 objects at z∼4 that are identified in a total area of 305 deg2 observed by the Subaru/Hyper Suprime-Cam survey. After careful investigations of systematic uncertainties, such as contamination from foreground galaxies and cosmic infrared background, we obtain the significant detection of the CMB lensing signal at 5.1sigma which is dominated by 2-halo term signals of the LBGs. Fitting a simple model consisting of the Navarro-Frenk-White profile and the linear-bias model, we obtain the typical halo mass of Mh=2.9×1011 h−1 Msun. Combining the CMB lensing and galaxy-galaxy clustering signals on the large scales, we demonstrate the first cosmological analysis at z∼4 that constrains (Omega_m0,sigma_8). We find that our constraint on sigma_8 is roughly consistent with the Planck cosmology, while this sigma_8 constraint is lower than the Planck cosmology over the 1sigma level. This study opens up a new window for constraining cosmological parameters at high redshift by the combination of CMB and high-z galaxies, as well as studying the interplay between galaxy evolution and large-scale structure at such high redshift. In this seminar, we will also discuss the future prospects with ongoing/upcoming observations by large ground-based/space telescopes such as James Webb Space Telescope (JWST).
Thursday, 6 October 2022
Friday, 7 October 2022
Saturday, 8 October 2022
Sunday, 9 October 2022
Monday, 10 October 2022
Tuesday, 11 October 2022
Wednesday, 12 October 2022
Thursday, 13 October 2022
Friday, 14 October 2022
Saturday, 15 October 2022
Sunday, 16 October 2022
Monday, 17 October 2022
Tuesday, 18 October 2022
Wednesday, 19 October 2022
Thursday, 20 October 2022
Friday, 21 October 2022
Saturday, 22 October 2022
Sunday, 23 October 2022
Monday, 24 October 2022
Tuesday, 25 October 2022
Wednesday, 26 October 2022
Thursday, 27 October 2022
Friday, 28 October 2022
Saturday, 29 October 2022
Sunday, 30 October 2022
Monday, 31 October 2022
14:45
Seminar 2: "Searches for Dark Matter with Cherenkov telescopes: Latest results and a glimpse into the future"
-
Moritz Hütten
Seminar 2: "Searches for Dark Matter with Cherenkov telescopes: Latest results and a glimpse into the future"
Moritz Hütten
14:45 - 15:45
The quest for Dark Matter is a since long unsolved puzzle of modern physics. Imaging Atmospheric Cherenkov telescopes, like MAGIC located at Roque de los Muchachos Observatory on La Palma, have so far searched almost 1000 hours of their data for gamma-ray signals from annihilating or decaying heavy (>GeV) Dark Matter particles. Also, the next-generation Cherenkov Telescope Array (CTA) is under construction, promising a moment of truth for TeV Dark Matter in the near future. In this seminar, I will introduce how to search for Dark Matter with Cherenkov telescopes. I will present the latest Dark Matter constraints obtained with the MAGIC telescopes, as well as what we can expect to learn with CTA.
Tuesday, 1 November 2022
Wednesday, 2 November 2022
Thursday, 3 November 2022
Friday, 4 November 2022
Saturday, 5 November 2022
Sunday, 6 November 2022
Monday, 7 November 2022
Tuesday, 8 November 2022
Wednesday, 9 November 2022
Thursday, 10 November 2022
Friday, 11 November 2022
Saturday, 12 November 2022
Sunday, 13 November 2022
Monday, 14 November 2022
Tuesday, 15 November 2022
Wednesday, 16 November 2022
Thursday, 17 November 2022
Friday, 18 November 2022
Saturday, 19 November 2022
Sunday, 20 November 2022
Monday, 21 November 2022
Tuesday, 22 November 2022
Wednesday, 23 November 2022
Thursday, 24 November 2022
Friday, 25 November 2022
Saturday, 26 November 2022
Sunday, 27 November 2022
Monday, 28 November 2022
Tuesday, 29 November 2022
Wednesday, 30 November 2022
Thursday, 1 December 2022
Friday, 2 December 2022
Saturday, 3 December 2022
Sunday, 4 December 2022
Monday, 5 December 2022
Tuesday, 6 December 2022
Wednesday, 7 December 2022
Thursday, 8 December 2022
Friday, 9 December 2022
Saturday, 10 December 2022
Sunday, 11 December 2022
Monday, 12 December 2022
Tuesday, 13 December 2022
Wednesday, 14 December 2022
Thursday, 15 December 2022
Friday, 16 December 2022
Saturday, 17 December 2022
Sunday, 18 December 2022
Monday, 19 December 2022
Tuesday, 20 December 2022
Wednesday, 21 December 2022
Thursday, 22 December 2022
Friday, 23 December 2022
Saturday, 24 December 2022
Sunday, 25 December 2022
Monday, 26 December 2022
Tuesday, 27 December 2022
Wednesday, 28 December 2022
Thursday, 29 December 2022
Friday, 30 December 2022
Saturday, 31 December 2022
Sunday, 1 January 2023
Monday, 2 January 2023
Tuesday, 3 January 2023
Wednesday, 4 January 2023
Thursday, 5 January 2023
Friday, 6 January 2023
Saturday, 7 January 2023
Sunday, 8 January 2023
Monday, 9 January 2023
Tuesday, 10 January 2023
Wednesday, 11 January 2023
Thursday, 12 January 2023
Friday, 13 January 2023
Saturday, 14 January 2023
Sunday, 15 January 2023
Monday, 16 January 2023
Tuesday, 17 January 2023
Wednesday, 18 January 2023
Thursday, 19 January 2023
Friday, 20 January 2023
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Sunday, 22 January 2023
Monday, 23 January 2023
Tuesday, 24 January 2023
Wednesday, 25 January 2023
Thursday, 26 January 2023
Friday, 27 January 2023
Saturday, 28 January 2023
Sunday, 29 January 2023
Monday, 30 January 2023
Tuesday, 31 January 2023
Wednesday, 1 February 2023
Thursday, 2 February 2023
Friday, 3 February 2023
Saturday, 4 February 2023
Sunday, 5 February 2023
Monday, 6 February 2023
Tuesday, 7 February 2023
Wednesday, 8 February 2023
Thursday, 9 February 2023
Friday, 10 February 2023
Saturday, 11 February 2023
Sunday, 12 February 2023
Monday, 13 February 2023
Tuesday, 14 February 2023
Wednesday, 15 February 2023
Thursday, 16 February 2023
Friday, 17 February 2023
Saturday, 18 February 2023
Sunday, 19 February 2023
Monday, 20 February 2023
Tuesday, 21 February 2023
Wednesday, 22 February 2023
Thursday, 23 February 2023
Friday, 24 February 2023
Saturday, 25 February 2023
Sunday, 26 February 2023
Monday, 27 February 2023
Tuesday, 28 February 2023
Wednesday, 1 March 2023
Thursday, 2 March 2023
Friday, 3 March 2023
Saturday, 4 March 2023
Sunday, 5 March 2023
Monday, 6 March 2023
Tuesday, 7 March 2023
Wednesday, 8 March 2023
Thursday, 9 March 2023
Friday, 10 March 2023
Saturday, 11 March 2023
Sunday, 12 March 2023
Monday, 13 March 2023
Tuesday, 14 March 2023
Wednesday, 15 March 2023
Thursday, 16 March 2023
Friday, 17 March 2023
Saturday, 18 March 2023
Sunday, 19 March 2023
Monday, 20 March 2023
Tuesday, 21 March 2023
Wednesday, 22 March 2023
Thursday, 23 March 2023
Friday, 24 March 2023
Saturday, 25 March 2023
Sunday, 26 March 2023
Monday, 27 March 2023
Tuesday, 28 March 2023
Wednesday, 29 March 2023
Thursday, 30 March 2023
Friday, 31 March 2023