The NAOJ Division of Science Cosmology Group
Journal Club (NAOJ-Cosmo)
国立天文台 科学研究部 宇宙論・文献紹介
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· 3/24/2025 (Mon) 16:00 --, 313
Arnab Chaudhuri, “TBA”
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· 2/10/2024 (Mon) 16:00 --, 313
Takeshi Hamana, “TBA”
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· 1/27/2025 (Mon) 16:00 --, 313
Maria Dainotti, “TBA”
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· 1/20/2025 (Mon) 16:00 --, 313
Naonori Sugiyama, “TBA”
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· 11/25/2024 (Mon) 16:00 --, 313
Kazunori Kohri, “TBA”
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· 11/11/2024 (Mon) 16:00 --, 313
Toya Suzuki, “TBA”
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· 10/7/2024 (Mon) 17:00 --, Zoom
Shubham Bhardwaj, “Constraining burdened PBHs with
gravitational waves”, arXiv:2409.05953v2
https://arxiv.org/abs/2409.05953v2
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· 8/26/2024 (Mon) 16:00 --, Lecture Room
Chia-Min Lin (National Chin-Yi University of Technology, Taiwan),
Title: “Quantum cosmology and uniform rate inflation”
Abstract:
In this talk, I will be unveiling an analytical solution of the Wheeler-DeWitt equation in a flat FLRW minisuperspace, and discuss it in de Broglie-Bohm quantum cosmology. This solution is the foundation for an inflation model, the uniform rate inflation. I will also share this novel model's experimental predictions and generalizations in braneworld cosmology.
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· 7/22/2024 (Mon) 16:00 --, Lecture room
Arnab Chaudhuri, “Review of Memory Burden Effects”
1) Valentin Thoss, Andreas Burkert, Kazunori Kohri,
arXiv: 2402.17823
https://arxiv.org/abs/2402.17823
2) Basabendu Barman, Md Riajul Haque, Óscar Zapata, arXiv:2405.15858 [astro-ph.CO]
https://arxiv.org/abs/2405.15858
3) Gia Dvali, Lukas Eisemann, Marco Michel, Sebastian Zell, arXiv:2006.00011 [hep-th]
https://arxiv.org/abs/2006.00011
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· 7/8/2024 (Mon) 16:00 --, Lecture room
Naonori Sugiyama, “3Dx2D?”
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· 7/1/2024 (Mon) 16:00 --, Lecture room
Takeshi Kobayashi (SISSA, Italy), “Monopoles and Cosmic Magnetic Fields”
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· 6/24/2024 (Mon) 16:00 --
Maria Dainotti, “A new parametrization for w0, wa, CDM model to alleviate the Hubble constant tension?”
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· 5/24/2024 (Mon) 16:00 --
Takashi Hamana, “Hubble Tension”
1) A new method to determine H0 from cosmological energy-density measurements
Alex Krolewski, Will J. Percival, Alex Woodfinden
https://arxiv.org/abs/2403.19227
2) Measuring the baryon fraction using galaxy clustering,
Alex Krolewski, Will J. Percival
https://arxiv.org/abs/2403.19236
3) A too-many dwarf galaxy satellites problem in the M83 group,
Oliver Müller, Marcel S. Pawlowski, Yves Revaz, Aku Venhola, Marina Rejkuba, Michael Hilker, Katharina Lutz
https://arxiv.org/abs/2403.08717
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· 5/13/2024 (Mon) 15:00 --
Kazunori Kohri, DESI year 1 in terms of time-dependent dark energy and neutrino mass hierarchy
1) DESI Collaboration: A. G. Adame et al, arXiv:2404.03002 [astro-ph.CO]
https://arxiv.org/abs/2404.03002
2) https://data.desi.lbl.gov/public/papers/y1/DESI2024_VI_BAO_COSMOLOGY.pdf
3) Yuichiro Tada and Takahiro Terada, arXiv:2404.05722v2
https://arxiv.org/abs/2404.05722
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· 4/1/2024 (Mon) 15:00 --
Naonori Sugiyama, Video Files for presentation
1) Naonori S. Sugiyama, Daisuke Yamauchi, Tsutomu Kobayashi, Tomohiro Fujita, Shun Arai, Shin'ichi Hirano, Shun Saito, Florian Beutler, Hee-Jong Seo, arXiv:2305.01142 [astro-ph.CO]
https://arxiv.org/abs/2305.01142
YouTube
https://www.youtube.com/watch?v=Zi36ooLPhss&feature=youtu.be
2) Naonori S. Sugiyama,
https://arxiv.org/abs/2402.06142
YouTube
https://www.youtube.com/watch?v=u1-xx3_4xCg
3) Naonori S. Sugiyama,
https://arxiv.org/abs/2403.18262
YouTube
https://www.youtube.com/watch?v=bHdlIi3jQ4A&feature=youtu.be
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· 2/26/2024 (Mon) 13:00 --
Takashi Hamana, The SRG/eROSITA and cosmological tension of σ8
1) https://arxiv.org/abs/2402.08458
2) A&A, vol. 682, A34 (2024), https://arxiv.org/abs/2401.17274
3) https://arxiv.org/abs/2402.08452
4) https://arxiv.org/abs/2402.08453
5) https://arxiv.org/abs/2402.08455
6) https://arxiv.org/abs/2402.08456
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· 1/29/2024 (Mon) 16:00 --
Kazunori Kohri
Parity violation in the Universe
1) Could Sample Variance be Responsible for the Parity-Violating Signal Seen in the BOSS Galaxy Survey?, Oliver H. E. Philcox, Julia Ereza, arXiv:2401.09523 [astro-ph.CO] https://arxiv.org/abs/2401.09523
2) Probing Parity-Violation with the Four-Point Correlation Function of BOSS Galaxies, Oliver H. E. Philcox, arXiv:2206.04227 [astro-ph.CO] https://arxiv.org/abs/2206.04227
3) Planck constraints on Cosmic Birefringence and its cross-correlation with the CMB, G. Zagatti, M. Bortolami, A. Gruppuso, P. Natoli, L. Pagano, G. Fabbian, rXiv:2401.11973 [astro-ph.CO]rXiv:2401.11973 [astro-ph.CO] https://arxiv.org/abs/2401.11973
4) Deuterium D/H Measurement in the metal-poor sub-DLA system at 𝑧 = 3.42 towards quasar J 1332+0052, P.A. Kislitsyn, S.A. Balashev, M.T. Murphy, C. Ledoux, P. Noterdaeme, A.V. Ivanchik, arXiv:2401.12797 [astro-ph.CO] https://arxiv.org/abs/2401.12797
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· 11/28/2023 (Fri) 15:00--
Naonori S. Sugiyama
1) First test of the consistency relation for the large-scale structure using the anisotropic three-point correlation function of BOSS DR12 galaxies
(An explanatory video is available at https://youtu.be/Zi36ooLPhss.)
2) Naonori S. Sugiyama, Daisuke Yamauchi, Tsutomu Kobayashi, Tomohiro Fujita, Shun Arai, Shin'ichi Hirano, Shun Saito, Florian Beutler, Hee-Jong
Seo https://arxiv.org/abs/2305.01142
3) Sugiyama, Shiraishi, Okumura https://arxiv.org/abs/1704.02868
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· 10/30/2023 (Mon) 15:00 --
Takashi Hamana
1) Enrique Paillas, et al, arxiv:2309.16541
https://arxiv.org/abs/2309.16541
2) Chi-Ting Chiang, Christian Wagner, Fabian Schmidt, Eiichiro Komatsu, 2014, JCAP, 05, 048
https://arxiv.org/abs/1403.3411
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· 10/23/2023 (Mon) 15:00 --
Kazunori Kohri
JWST and the early-universe cosmology
1) JWST‘s UV luminosity function is consistent with ΛCDM, Yi-Ying Wang, Lei Lei, Guan-Wen Yuan, Yi-Zhong Fan, arXiv:2307.12487 [astro-ph.GA], https://arxiv.org/abs/2307.12487
2) An inflation model for massive primordial black holes to interpret the JWST observations”, Bing-Yu Su, Nan Li, Lei Feng, arXiv:2306.05364 [astro-ph.CO] https://arxiv.org/abs/2306.05364
3) NANOGrav15yr, JWST’s early star formation and Hubble tension, Yann Gouttenoire, Sokratis Trifinopoulos, Georgios Valogiannis, Miguel Vanvlasselaer, arXiv:2307.01457 [astro-ph.CO] https://arxiv.org/abs/2307.01457
4) Primordial power spectrum in light of JWST observations of high redshift galaxies, Priyank Parashari, Ranjan Laha, arXiv:2305.00999 [astro-ph.CO]https://arxiv.org/abs/2305.00999
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問い合わせ先: 郡 和範 (こおり かずのり)
Contact: Kazunori Kohri
https://sci.nao.ac.jp/main/member
