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Jim Donegan ✅ · @jimdonegan
1538 followers · 4582 posts · Server mastodon.scot
YouTube - The Mysterious Theory That Could Change Everything We Know: How Constants of Nature Could Vary

#gr #generalrelativity #relativity #jwst #standardmodel #cdm #lcdm #λcdm #cosmos #universe #astrophysics #astronomy #physics #cosmology #science #PhilosophyOfCosmology #philosophyofscience #philosophy #nasaspacenews #constant #constants

Last updated 1 year ago
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Louis Marmet · @redshiftdrift
98 followers · 271 posts · Server astrodon.social


"Here, as a last-ditch effort, we point out that disregarding the large angular scale polarization obtained by Planck, which allows for significantly larger values of the matter clustering parameter σ8, could lead to better agreement between Planck and JWST within the ΛCDM framework."

*Last-ditch*: a desperate final attempt = If this explanation doesn't work, they will give up 👍

🔗 arxiv.org/abs/2306.07781

#HubbleTension #sigma8tension #lcdm #λcdm

Last updated 1 year ago
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Louis Marmet · @redshiftdrift
88 followers · 335 posts · Server astrodon.social
Open media


"One matter density discrepancy to alleviate them all or further trouble for model"
"... or simply that further evidences are indicating that ΛCDM model is facing more difficulties to accommodate simultaneously all the current available observations."
🔗 arxiv.org/abs/2305.02846

#cosmology #lcdm #λcdm

Last updated 1 year ago
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Daniel Pomarède · @pomarede
748 followers · 223 posts · Server mastodon.social

Rising Tension.

Early Cosmicflows-4 result: R. Watkins+co-authors present an estimate of the bulk flow, the average velocity of the survey volume: about 400 km/s. This has an epsilonesque chance of occurring in the ΛCDM model with CMB derived parameters.

arxiv.org/abs/2302.02028

#cosmology #universe #astronomy #astrophysics #space #science #research #Astrodon #λcdm #cosmicflows #cosmicflows4 #galaxies #physics

Last updated 2 years ago
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