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#λcdm — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #λcdm, aggregated by home.social.

  1. The Cosmological Principle treats our observable region as representative of the whole universe, letting cosmologists generalize local measurements to the entire cosmos and enabling models like the standard ΛCDM.

    #ΛCDM #Cosmology

  2. Key gravitational structures unveiled in new cosmic research

    A group of international scientists has made significant strides in understanding the large-scale structure of the Universe by identifying critical gravitational regions, termed "basins of attraction."

    spacedaily.com/reports/Key_Gra

    #Cosmology #Cosmicflows #galaxies #ΛCDM #News #Laniakea #Shapley #Universe #astrodon #astrophysics #science #STEM #gravitation #physics

  3. Cosmography Update

    A 3D map of basins of attractions in the Local Universe, inferred from Cosmicflows-4 and based on a probabilistic approach, gives new insights on our cosmic whereabouts. We have not reached the "End of Greatness" yet!

    rdcu.be/dVhDz #NatureAstronomy

    #Cosmology #Cosmicflows #galaxies #Cosmography #ΛCDM #EndOfGreatness #Laniakea #supercluster #LaniakeaSupercluster #Shapley #SloanGreatWall #Nature #Astronomy #Universe #astrodon #astrophysics #science #STEM

  4. Advanced data shed light on gravitational basins of attraction that shape the movement of galaxies

    A new study has mapped out the gravitational basins of attraction in the local universe, offering fresh insights into the large-scale cosmic structures that shape the movement of galaxies. The study has been published in #NatureAstronomy

    phys.org/news/2024-09-advanced

    #Cosmology #Cosmicflows #galaxies #Cosmography #ΛCDM #EndOfGreatness #Nature #Astronomy #Universe #astrodon #astrophysics #science #STEM

  5. [3,2,1 : Top départ ... en vacances ! 😎] La mission #SVOM a été lancée, les données de l'instrument #DORN sont en cours d'analyse, #JUICE est en chemin pour Jupiter, le modèle cosmologique standard (#ΛCDM) est robuste, ... Un un mot, tout est nominal ! 😉 Il est temps de s'insérer en orbite estivale ... 🚀 🛰 🏝 🏖 🏕

    Bel été à tous et toutes ! Merci de nous suivre toujours plus nombreux 💖

  6. [#Cosmology] Is the Standard Cosmological Model (#ΛCDM) compatible with recent tensions concerning the #Hubble constant (linked to the #expansion of the Universe) and matter density fluctuations in the #Universe?

    Yes, say the cosmologists at IRAP: after analyzing nearly 200 #alternative models, they have revisited the Standard Model: "this new version is statistically equivalent or better than previously proposed unbiased extensions".

    Details+ : irap.omp.eu/en/2024/06/the-sta

  7. [#Cosmologie] Le modèle cosmologique standard (#ΛCDM) est-il compatible avec les tensions récentes concernant la constante de #Hubble et les fluctuations de densité de matière dans l'#Univers ?

    Oui, répondent les cosmologiste de l'IRAP : après analyse de près de 200 #modèles alternatifs, ils ont revisité le modèle standard : "cette nouvelle version est statistiquement équivalente ou meilleure que les extensions précédemment proposées sans biais".

    Infos+ : irap.omp.eu/2024/06/le-modele-

  8. Great Nature News Feature article on the recent DESI Survey results on dark energy

    With a final quote by Jim Peebles: “I find it very difficult to imagine that ΛCDM is the end of the story. It’s too simple.”

    nature.com/articles/d41586-024

    #Cosmology #DarkEnergy #ΛCDM #JimPeebles #DESI #survey #DESIsurvey #BAO #BaryonAcousticOscillations #galaxies #astronomy #astrophysics #astrodon #Nature #news #science

  9. Great Nature News Feature article on the recent DESI Survey results on dark energy

    With a final quote by Jim Peebles: “I find it very difficult to imagine that ΛCDM is the end of the story. It’s too simple.”

    nature.com/articles/d41586-024

    #Cosmology #DarkEnergy #ΛCDM #JimPeebles #DESI #survey #DESIsurvey #BAO #BaryonAcousticOscillations #galaxies #astronomy #astrophysics #astrodon #Nature #news #science

  10. Great Nature News Feature article on the recent DESI Survey results on dark energy

    With a final quote by Jim Peebles: “I find it very difficult to imagine that ΛCDM is the end of the story. It’s too simple.”

    nature.com/articles/d41586-024

    #Cosmology #DarkEnergy #ΛCDM #JimPeebles #DESI #survey #DESIsurvey #BAO #BaryonAcousticOscillations #galaxies #astronomy #astrophysics #astrodon #Nature #news #science

  11. Great Nature News Feature article on the recent DESI Survey results on dark energy

    With a final quote by Jim Peebles: “I find it very difficult to imagine that ΛCDM is the end of the story. It’s too simple.”

    nature.com/articles/d41586-024

    #Cosmology #DarkEnergy #ΛCDM #JimPeebles #DESI #survey #DESIsurvey #BAO #BaryonAcousticOscillations #galaxies #astronomy #astrophysics #astrodon #Nature #news #science

  12. Great Nature News Feature article on the recent DESI Survey results on dark energy

    With a final quote by Jim Peebles: “I find it very difficult to imagine that ΛCDM is the end of the story. It’s too simple.”

    nature.com/articles/d41586-024

    #Cosmology #DarkEnergy #ΛCDM #JimPeebles #DESI #survey #DESIsurvey #BAO #BaryonAcousticOscillations #galaxies #astronomy #astrophysics #astrodon #Nature #news #science

  13. #HubbleTension #Sigma8Tension #LCDM
    "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 #ΛCDM 👍

    🔗 arxiv.org/abs/2306.07781

  14. 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