CMC II: Challenges of Modern Cosmology Discussion, Oct 17-18, 2024

✍️ About:

The conference will feature three sessions:

Session I: Observational Tensions in Astrophysics and Cosmology
Session II: Local and Small-to-Medium Scales in Astrophysics
On October 18th, the panel will continue with:

Session III: Cosmology and Large-Scale Astrophysics

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🗣️ List of speakers and title of their talk:
Session I: Observational Tensions in Astrophysics and Cosmology

1. Invited Talk: "A Selection of Observations in Conflict with ΛCDM"
Speaker: Dr. Sebastian Von Hausegger (University of Oxford)
2. "Is the CMB a Relevant Initial Condition for Structure Formation in Alternative Cosmological Models?"
Speaker: Pavel Kroupa (University of Bonn)
3. "Empirical Evidence of Consistent Redshift Bias at Cosmological Scales"
Speaker: Lior Shamir (Kansas State University)
4. "Galaxies Older than the ΛCDM Universe at z=8"
Speaker: Martín López-Corredoira (Instituto de Astrofísica de Canarias)
5. "Evolution of the Hubble Parameter from Pantheon Plus Data and Comparison with Cosmic Chronometers"
Speaker: E. S. Ardra (Mahatma Gandhi University)

Session II: Local and Small-to-Medium Scales in Astrophysics
6. Invited Talk: "The Observed Local Supervoid Could Solve the Hubble and Bulk Flow Tensions"
Speaker: Dr. Indranil Banik (Institute of Cosmology and Gravitation, University of Portsmouth)
7. "Abell 3827 and Its Constraints on Dark Matter and MOND"
Speaker: Jenny Wagner (Helsinki Institute of Physics, University of Helsinki)
8. "Hyperconical Modified Gravity: From Large to Small Scales"
Speaker: Robert Monjo (Saint Louis University)
9. "Effective G in the Modification of Newtonian Gravity"
Speaker: Shiva Dwivedi (Christ University)

Session III: Cosmology and Large-Scale Astrophysics
10. Invited Talk: "Correlated Galaxy Formation at the Scale of the Sound Horizon: What Can Proto-Superclusters Tell Us About the Distant Cosmic Web?"
Speaker: Nikolaus Sulzenauer (Max-Planck-Institut für Radioastronomie)
11. "Are Dark Matter and Dark Energy Manifestations of Covarying Coupling Constants?"
Speaker: Rajendra Gupta (University of Ottawa)
12. "On the Initial Conditions of the νHDM Model"
Speaker: Nikolaos Samaras (Astronomical Institute of Charles University)
13. "An Effective Hubble Constant in f(R) Modified Gravity in the Jordan Frame"
Speaker: Tiziano Schiavone (Galileo Galilei Institute for Theoretical Physics)
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🏷️ Tags:
#cmc2024 #cosmos24 #cosmic_void #Hubble_tension #Problem_in_standard_cosmology #dark_energy #dark_matter #nonminimal_coupling #gravitationalwaves #modifed_gravity #observational_test_of_modifed_gravity #inflationarycosmology #scalar_field_theory #Problems_of_ΛCDM #LambdaCDM_problem #cosmic_small_scale_problem #cosmic_large_scale_problem #CMB_cosmic_microwave_background #physics_of_cmb #galaxy_clusters #observational_cosmology

[cosmickap]

The first session is now concluded. Thank you everyone for attending the discussion and making it successful. The next part of the conference will be live on Oct 18, 2024.

[indranilbanik]

There is a slight typo in my slide with the table of distances to the void centre for the best fits to the bulk flow curve in the different void underdensity profiles. 4 Mpc should be replaced by 40 Mpc. So it seems we should be about 50 Mpc from the void centre for the models to work.

[emanuelsferios]

In the first presentation, I don't understand what Sebastian Von Hausegger means when he says that the Lambda CDM model "explains the current data sets." Is he referring to data sets that assume universal expansion? Eric Lerner's comments on his presentation made sense to me, but Hausegger's responses did not. Thank you.