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A Sourcebook for the Worldwide Discovery of a Creative Organic Universe
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Recent Additions: New and Updated Entries in the Past 60 Days
Displaying entries 16 through 30 of 84 found.


Ecosmos: A Revolutionary Fertile, Habitable, Solar-Bioplanet, Incubator Lifescape

Animate Cosmos > cosmos

Jeffreson, Sarah, et al. Learning the Universe: GalactISM simulations of resolved star formation and galactic outflows across main sflows across main sequence and quenched galactic environments. arXiv:2409.09114.. This report by nine astrotheorists at Harvard, Princeton, Columbia, the Flatiron Institute, NYU, University of Zurich, Cardiff University and the University of the Western Cape, RSA is part of an ambitious Simons (Foundation) project proposal (second quote) for an orientation dedicated to our whole scale Earthuman (as these authors convey) quantified description of the near and farther galactic spacescape. See also, for example, Learning Theory Informed Priors for Bayesian Inference: A Case Study with Early Dark Energy at arXiv:2409.09029.

We present a suite of six high-resolution chemo-dynamical simulations of isolated galaxies which span disk-dominated environments, as well as quenched, bulge-dominated formations. We study the physics driving star formation and stellar feedback amongst the galaxies, by way of cosmological simulations. The star formation rate in five out of six galaxies is independent of Ω, and is consistent with regulation by the mid-plane gas pressure alone. In the sixth galaxy, which has the most centrally-concentrated bulge, we reproduce dynamical suppression of the star formation efficiency (SFE) in agreement with observations. (Excerpt)

Learning the Universe The evolution of our Universe is determined by initial conditions and physical laws. However, neither of these are open to direct determination, but must be inferred from observations. This collaboration plans to carry out this task using a Bayesian forward modeling approach by repetitive samples of the observational consequences of that choice, compare to real galaxies and gas. In practice, this is a challenging endeavor because galaxy formation simulations are costly and incompletely understood. (Simons Collaboration: learning-the-universe.org)

Animate Cosmos > cosmos

McGaugh, Stacey, et al.. Accelerated Structure Formation: The Early Emergence of Massive Galaxies and Clusters of Galaxies. arXiv:2406.17930.. arXiv:2406.17930.. This entry by Western Reserve University, University of Oregon and INAF, Arcetri Astrophysical Observatory, Italy is a current example of the spatial breadth and spacetime duration of the observations that the James Webb Space Telescope is constantly achieving across the vast universe. How incredible is it that a minute biospheric collective sapience and capability can yet provide such vivid images and entire cosmic knowledge.

Galaxies in the early universe appear to have grown too big too fast into massive, monolithic objects in the hierarchical ΛCDM structure formation paradigm. The available data are consistent with a population that forms early and follows a star formation history to become full galaxies. Observations of the kinematics of spiral galaxies as a function of redshift show that massive disks and their scaling relations were in place at early times. (Excerpt)

Animate Cosmos > cosmos

Nadis, Steve. Diminishing Dark Energy May Evade the ‘Swampland’ of Impossible Universes.. Quanta. August 19, 2024. A science writer surveys these latest speculations as everything cosmic now seems in flux, open to question, and in need of revision due to the Dark Energy Spectroscopic Instrument (DESI) project 3D map findings of a variable dark energy. In this regard, an accelerating universe expansion may actually be receding. And may we again muse how incredible this whole scenario is whence a sentient collaborative bioworld is able to carry out such instrumental explorations, mathematic quantifications and successive iterations, by which, so it seems, some celestial reality is trying to represent, record and affirm itself.

But if the initial DESI finding is confirmed, it will tell us something crucial about dark energy and its future. “Even more importantly,” Vafa said, “we can deduce that this is marking the beginning of the end of the universe. By ‘end,’ I don’t mean nothing happens after that. I’m saying something else happens that is very different from what we have now.” Perhaps dark energy will fall until it settles into a stabler, possibly negative value. With that, a new universe, with new laws, particles and forces, would replace the current one.

The Dark Energy Spectroscopic Instrument (DESI) (search) is a scientific research instrument for conducting spectrographic astronomical surveys of distant galaxies. Its main components are a focal plane containing 5,000 fiber-positioning robots, and a bank of spectrographs. The instrument enables an experiment to probe the expansion history of the universe and the mysterious physics of dark energy.

Animate Cosmos > cosmos

Sawala, Till, et al. Distinct distributions of elliptical and disk galaxies across the Local Supercluster as a ΛCDM prediction. Nature Astronomy.. August, 2024. We enter this article by University of Helsinki and Durham University, UK astrophysicists including Carlos Frenk for its content and as an example of apparently limitless 21st century Earthuman stellar abilities to explore, instrument, quantify, compute and record by way of data, image, graph, equation, theory any celestial spacescape dimension and temporal dynamic animation.

Galaxies of different types are not equally distributed in the Local Universe. In particular, the supergalactic plane is prominent among the brightest ellipticals, but inconspicuous among the brightest disk galaxies. This striking difference provides a unique test for our understanding of galaxy and structure formation. Here we use the SIBELIUS DARK constrained simulation to confront the predictions of the standard Lambda Cold Dark Matter (ΛCDM) model and standard galaxy formation theory with these observations. We find that SIBELIUS DARK reproduces the spatial distributions of disks and ellipticals and, in particular, the observed excess of massive ellipticals near the supergalactic equator. (Excerpt).

Carlos S. Frenk is Director of the Institute for Computational Cosmology, Durham University's world-renowned theoretical cosmology research group. Along with collaborators from all over the world, he builds model universes in state-of-the-art supercomputers.

Animate Cosmos > cosmos

Valade, A., et al.. Valade, A., et al. Identification of basins of attraction in the local Universe. Nature Astronomy.. September, 2024. Leibniz-Institut für Astrophysik. Potsdam and University of Hawaii including Norman Libeskind contribute another procedural example of our current planetary sapienscape quantification and accumulated knowledge record (still mostly unawares) across sidereal reaches. Whom then are we altogether to dutifully perform this self-descriptive universal function.

The Universe is believed to have evolved from quantum fluctuations seeded by an initial inflation which led to density perturbations that grew into large cosmological structures. Here, assuming the lambda cold dark matter standard model and applying a Hamiltonian Monte Carlo algorithm to 38,000 galaxies, the large-scale structure of the Universe is reconstructed. Our method thus provides an assessment of gravitational basins of attraction (BoA). Earlier Cosmicflows catalogues suggested that the Milky Way Galaxy was associated with a BoA called Laniakea. With the newer CF4 data, there is a slight probabilistic preference for Laniakea to be part of the much larger Shapley BoA. (Excerpt)

Animate Cosmos > cosmos > Quantum Cosmology

, . Marletto, Chiara and Vlatko Vedral. Quantum-information methods for quantum gravity laboratory-based tests.. arXiv:2410.07262. Senior Oxford University physicists (search) post their latest theoretical proposals and empirical plans at the leading edge of a century old endeavor to gather and wrap all these facets into a sensible coherence.


Quantum theory and general relativity are about one century old. At present, they are considered the best explanations of physical reality, as corroborated by experiments so far. Yet, the quest for unify goes on with quantum gravity. Here we review the nascent field of information-theoretic methods applied to this project. We focus mainly on gravitational entanglement between two quantum probes. We shall review the experimental proposal that has originated this field, as well as its variants, their applications, and discuss their potential implications for the quantum theory of gravity. (Abstract)

Animate Cosmos > cosmos > physics

Brouillet, Matthew and Georgi Georgiev. Why and How do Complex Systems Self-Organize at All?. arXiv:2408.10278.. Assumption University, Worcester, MA physicists (search GG) provide a latest theoretic grounding of nature’s spontaneous animate development from a conducive universe to our societal retrospect. The paper’s subtitle is Average Action Efficiency as a Predictor, Measure, Driver, and Mechanism of Self-Organization which then informs some 40 pages of mathematical proofs.


Self-organization in complex systems is a process in which randomness is reduced and emergent structures appear due to energy gradients and dynamic principles. In regard, positive feedback loops connect this measure with all provide these complex systems with exponential growth, and power law relationships. In this study, we also proceed to model agent-based simulations, measure action efficiency and consider intentional applications. (Excerpt)

Self-organization is key to understanding the existence of, and the changes in all systems that lead to higher levels of complexity and perfection in development and evolution. It is a scientific as well as a philosophical question as our realization and understanding of this robust, resilient, competitive, vital process grows. Our goal is a better explanation that drives Cosmic Evolution from the Big Bang to the present, and into the future. Self-organization has a universality independent of the substrate of the system - physical, chemical, biological, or social - and explains all of its structures. (1)

Overview of the Theoretical Framework: We use the extension of Hamilton’s Principle of Stationary Action to a Principle of Dynamic Action, according to which action in self-organizing systems is changing in two ways: decreasing the average action for one event and increasing the total amount of action in the system during the process of self-organization, growth, evolution, and development. This view can lead to a deeper understanding of the fundamental principles of nature’s self-organization, evolution, and development in the universe, ourselves, and our society. (2)

Our findings contribute to a deeper understanding of the mechanisms underlying self-organization and offer a novel, quantitative approach to measuring organization in complex systems. This research opens up exciting possibilities for further exploration and practical applications, enhancing our ability to design and manage complex systems across various domains. By providing a quantitative measure of organization that can be applied universally, we enhance our ability to design and manage complex systems across various domains. Future research can build on our findings to explore the dynamics of self-organization in greater detail, develop new optimization strategies, and create more efficient and resilient systems. (45)

Animate Cosmos > cosmos > physics

Martin, David, et al. Fluctuation-induced first order transition to collective motion.. Journal of Statistical Mechanics. August, 2024. University of Chicago, Sorbonne, Paris-Saclay and MIT biophysicists including Frédéric van Wijland give another twist to matter on the move by way ofdiscerning turbulences which seem to percolate through the stream.

The nature of the transition to collective motion in assemblies of aligning self-propelled particles remains an open issue. In this article, we focus on dry active matter and show that weak fluctuations suffice to turn mean-field transitions into a 'discontinuous' coexistence scenario. Our theory shows how a density-dependence of the polar-field mass is induced which in turn, triggers a feedback loop between ordering and advection motion and the emergence of inhomogeneous travelling bands. Finally, we confirm our predictions by numerical simulations of fluctuating hydrodynamics as well as of topological particle models. (Excerpt)

Animate Cosmos > cosmos > exouniverse

Trivedi, Oem and Maxim Khlopov. On rips and cosmological singularities in a universe merging with baby universes. arXiv:2401.13251. We record this entry by Ahmedabad University, India and Southern Federal University, Russia astroscientists as Earthuman abilities have now become able to achieve mathematical conceptions of entire, unitary cosmoses. In consideration, they seem to be engaged in interactions with other multiversal entities as each spatially and temporally bubble in and out of existence. I recall seeing Andrei Linde in 1983 at Harvard present this very scenario which he saw as taking on a fractal scale. Some four decades later, our global theoretic and instrumental collaborations can verify these far flung vistas. See also The long freeze: an asymptotically static universe from holographic dark energy by Oem Trivedi and Robert J. Scherrer at arXiv:2409.11420.

Understanding the late-time acceleration of the universe and its subtleties is one of the biggest mysteries in cosmology. Recently an interesting approach to explaining the late time acceleration has been put forward, where the expansion of the universe is driven by mergers with other "baby" universes by way of new observational data. In this work we examine various rip scenarios and other future cosmological singularities in such a "multiversal" scenario.

Animate Cosmos > Fractal

Alimi, Jean-Michel and Remy Koska. The shape of dark matter halos: a new fundamental cosmological invariance.. arXiv:2406.15947.. As these 21st century worldwise studies gain wider and deeper findings, Laboratoire Univers et Théories, CNRS, Observatoire de Paris astronomers describe a persistent self-similarity to hold even across this esoteric realm. And in a philosophic sense, when will such whole scale verifications begin to reveal the existence of a greater independent reality, from which we arise so to achieve its own self-witness?

We focus on the complex relationship between the shape of dark matter halos and the celestial models underlying their formation. We used three realistic versions from the Dark Energy Universe Simulation suite. Our results show that a wide-spread invariance is a consequence of the matter field non-linear dynamics as the universe evolves. From this correspondence, we can reconstruct the complex variance of the cosmic matter field and its power spectrum. (Excerpt)

Animate Cosmos > Astrobiology

Colzi, L., et al. Astrochemistry on Galactic Scales. arXiv:2409.02537.. This chapter for the 2024 National Congress of (proto-) Planetary Astrochemistry Proceedings by Centro de Astrobiologıa (CSIC-INTA), Spain, INAF-Osservatorio Astrofisico di Arcetri, Italy, European Southern Observatory, Germany, Chalmers University of Technology, Sweden and MPI Extraterrestrische Physik astrophysicists extols the current cornucopia of over 300 molecules that have now been detected across these celestial reaches. Cosmic rays are now also seen to play a vital part. Thus, it seems our starry heavens are suffused by an inherent propensity to synthesize compositions that will serve subsequent living systems on their evolutionary course. See also another chapter Planet Formation and Disk Chemistry: Dust and Gas Evolution during Planet Formation herein at arXiv:2407.03520.

Many observations in Milky Way environs, as well as theoretical and experimental works, are revealing astrochemical processes in the interstellar medium (ISM). In this chapter we describe some main projects to study the chemical complexity and isotopic ratios across the Galaxy. High-sensitivity spectral surveys covering broad bandwidths towards molecular clouds and star-forming regions are very rich astrochemical, prebiotic reservoirs, which include molecules of prebiotic interest. At the same time, isotopic ratios can inform Galactic chemical evolution. (Excerpt)

Animate Cosmos > exoearths

Cloutier, Ryan. Exoplanet Demographics: Physical and Orbital Properties.. arXiv:2409.13062. A McMaster University astronomer provides a comprehensive survey to appear in the 2025 Encyclopedia of Astrophysics to be published by Elsevier all about the ever expanding proliferation of a world bearing universe. This preprint contains an extensive glossary along with visuals and graphs as an Earthuman sapience begins our ecosmokinder quest.

The discovery of over 5700 exoplanets has led to the field of exoplanet demographics over the past decade. Astronomers have been conducting statistical studies in search of trends in various planetary and host stellar parameters. In this chapter, we review many major features for physical and orbital conditions of known exoplanets including the Radius Valley, the Neptunian Desert, the Peas in a Pod pattern, dynamical properties that point toward likely formation/migration mechanisms, as well as trends with host stellar parameters such as the time-evolution of exoplanetary systems and the search for planets within the Habitable Zone. The overarching theme is that exoplanetary systems exhibit an incredible diversity of planet properties and system architectures that do not exist within our own solar system.

Animate Cosmos > exoearths

Haqq-Misra, Jacob, et al.. Projections of Earth's technosphere. Scenario modeling, worldbuilding, and overview of remotely detectable technosignatures.. arXiv:2409.00067.. Blue Marble Space Institute of Science and NASA Goddard Space Flight Center consider project plans in search of near and far exocivilizations that could be detectable as atmospheres and geoengineering here spread over a millennium span. See also Waste Heat and Habitability: Constraints from Technological Energy Consumption by Amedeo Balbi and Manasvi Lingam at arXiv:2409.06737.

This study uses methods from futures studies to develop a set of ten self-consistent scenarios for Earth's 1000-year future, which can serve as examples for defining search strategies. We consider worldbuilding scenarios that evaluate the human needs as to define the observable civilization. Our scenarios include three with zero-growth stability, two that have collapsed into a stable state, one that oscillates between growth and collapse, and four that continue to grow. Only one scenario includes rapid growth that could lead to interstellar expansion. We have looked at a wide array as a basis for systematic thinking about technosignature detection as well as imagining a broad range of for Earth's future.

Animate Cosmos > exoearths

Lai, Yanhong, et al.. Ocean Circulation on Tide-locked Lava Worlds, Part II: Scalings.. arXiv:2408.09985.. We cite this work by Climate and Ocean-Atmosphere Studies, Peking University and Earth, Atmosphere and Planetary Science, MIT astronomers for its content and in a philoSophia view to glimpse the present spacescape vista whereof a collaborative sapiensphere has at last formed over an infinitesimal bioplanet and in a few decades learned to explore, quantify an infinity of vicarious global, solar and galactic phenomena. See also Lapi, Andrea, et al. Semi-empirical Estimates of the Cosmic Planet Formation Rate by Andrea, Lapi, et al at 2408.08611 for another example of our Earthuman multiversal acumen.

On tidally locked lava planets, a magma ocean can form on the permanent dayside. Its circulation can be driven by stellar radiation and atmospheric winds. In this study, we develop scaling laws for the magma ocean depth, oceanic current speed, and heat transport convergence driven by stellar and wind forcings in three different dynamic regimes: non-rotating viscosity-dominant Regime I, non-rotating inviscid limit Regime II, and rotation-dominant Regime III. (Excerpt)

Animate Cosmos > exoearths

Morbidelli, Alessandro, et al. Formation and evolution of a protoplanetary disk: combining observations, simulations and cosmochemical constraints.. arXiv:2409.06342. A posting by fifteen astronomers in France, Germany, Spain, Taiwan and Japan that as a current status report of our collaborative Earthuman project to explore, reconstruct, quantify and learn how orbital worlds and this home abide originally came to form out of primordial pebble-like accretions. An incredible scenario presents itself in the 2020s whence a late, optimum global sapience can achieve a necessary ecosmic self-description.

We present a plausible and coherent view of the evolution of the protosolar disk that is consistent with the cosmochemical constraints and compatible with observations of other protoplanetary disks and sophisticated numerical simulations. The assumption that the material accreted towards the end of the infall phase was isotopically distinct allows us to explain the observed dichotomy in nucleosynthetic isotopic anomalies of meteorites. In conclusion, the evolution of the protosolar disk seems to have been quite typical in terms of size, lifetime, and dust behavior, suggesting that the peculiarities of the Solar system with respect to the extrasolar planetary system probably originate from the chaotic nature of planet formation and not at the level of the parental disk. (Excerpt)

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