(logo) Natural Genesis (logo text)
A Sourcebook for the Worldwide Discovery of a Creative Organic Universe
Table of Contents
Introduction
Genesis Vision
Learning Planet
Organic Universe
Earth Life Emerge
Genesis Future
Glossary
Recent Additions
Search
Submit

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

G. An Astrochemistry to Astrobiological Spontaneity

Cohen, Jack and Ian Stewart. What Does a Martian Look Like?: The Science of Extraterrestrial Life. Hoboken, NJ: Wiley, 2002. An imaginative survey of potential life forms in the cosmos. This is made plausible because nonlinear science has lately surpassed the second law of thermodynamics with a ‘fourth law’ to describe how a life-bearing universe becomes increasingly complex and sentient, rather than entropically wearing out. A significant attribute of the human presence is seen as ‘extelligence,’ a planetary culture that is independent of individual minds.

Where the entropy physicists saw the Universe following the slippery slope downwards to oblivion, today’s complexity thinkers see the universe as complicating itself and inventing new rules as it goes along. (89)

Corradi, R., et al. The Planetary Nebula IPHASXJ211420.0+434136 (Ou5): Insights into Common-Envelope Dynamical and Chemical Evolution. Monthly Notices of the Royal Astronomical Society. 441/4, 2014. A typical paper today from observatories in Spain, Chile, Estonia, and South Africa whence it is possible for such global collaborations to study and characterize neighbor orbital worlds across the galaxies. And how fantastic is this that phenomenal human beings can gain knowledge of such infinities, what great discovery might we altogether anticipate and achieve?

While analysing the images of the IPHAS (INT/WFC Photometric Hα Survey of the northern Galactic plane) survey, we noticed that the central star of the candidate planetary nebula IPHASXJ211420.0+434136 (also named Ou5) was clearly variable. This is generally considered as an indication of binarity. To confirm it, we performed a photometric monitoring of the central star, and obtained images and spectra of the nebula. The nebular spectrum confirms that IPHASXJ211420.0+434136 is a planetary nebula of moderately high excitation. It has a remarkable morphology with two nested pairs of bipolar lobes and other unusual features. The light curve of the central star reveals that it is an eclipsing binary system with an orbital period of 8.74 h. IPHASXJ211420.0+434136 also adds evidence to the hypothesis that a significant fraction of planetary nebulae with close binary central stars have a peculiar nebular chemistry and a relatively low nebular mass. This may point to low-mass, low-metallicity progenitors, with additional effects related to the binary evolution. (Abstract)

Cosmovici, C., et al, eds. Astronomical and Biochemical Origins and the Search for Life in the Universe. Bologna: Editrice Compositori, 1997. Reports from an International Astronomical Union IAU Colloquium. The tacit conviction at these conferences is a cosmos naturally spawning life and advanced intelligence.

Cote, Benoit, et al. JINA-NuGrid Galactic Chemical Evolution Pipeline. arXiv:1609.09528. Joint Institute for Nuclear Astrophysics, and Nucleosynthesis Grid project Earthlings retrospectively quantify how the temporal cosmos formed its material compositions, which evidently have our human acumen is written into them.

Galactic chemical evolution is a topic that involves nuclear physics, stellar evolution, galaxy evolution, observation, and cosmology. Continuous communication and feedback between these fields is a key component in improving our understanding of how galaxies form and how elements are created and recycled in galaxies and intergalactic space. In this proceedings, we present the current state of the JINA-NuGrid chemical evolution pipeline. It is designed to probe the impact of nuclear astrophysics uncertainties on galactic chemical evolution, to improve our knowledges regarding the origin of the elements in a cosmological context, and to create the required interdisciplinary connections. (Abstract)

Cottin, Herve, et al. Astrobiology and the Possibility of Life on Earth and Elsewhere. Space Science Review. Online September, 2015. A summary of this title 2011 – 2014 European Space Agency project whose team includes Charles Cockell, Julia Kotler, Frances Westall and Robert Pascal. Check this journal for future articles in more detail.

Cridland, Alex, et al. Connecting Planet Formation and Astrochemistry: A Main Sequence for C/O in Hot-Exoplanetary Atmospheres. arXiv:1910.13071. Leiden Observatory and McMaster University scientists including Ewine van Dishoeck and Ralph Pudritz post an extensive quantification of global, oxygen to carbon gaseous mixtures and interactions as they may evolve due to migrating large and small solar system objects.

Cunningham, Maria, et al, eds. Astrochemistry VII: Through the Cosmos from Galaxies to Planets. Cambridge: Cambridge University Press, 2018. These Proceedings of the International Astronomical Union Symposia S332 open with an Astrochemistry Overview by Ewine van Dishoeck. The volume goes on to convey how broad and deep this scientific endeavor has become as it proceeds to quantify and discover an inherently animate conducive ecosmos.

Since the discovery of ammonia in the interstellar medium of the Milky Way in 1968, we have identified around 160 complex organic molecules, which help us understand how stars and planets form. IAU S332 describes how such observations, combined with numerical modelling and laboratory astrochemistry, are used to study how the Universe has evolved.

Dagdigian, Paul. Quantum Statistical Study of the C+ + OH → CO + H+/CO+ + H Reaction. Journal of Chemical Physics. 151/054306, 2019. A Johns Hopkins University prolific senior chemist (view website) studies reaction rate and product branching ratio at interstellar temperatures. We cite as an integral meld of quantum and astrochemical phenomena at frontiers of our global verification of an organic, fertile, procreative ecosmic milieu. The work also conveys a 21st century biocosmic revolution in our midst which unifies all these disparate fields going forward.

Darling, David. Life Everywhere: The Maverick Science of Astrobiology. New York: Basic Books, 2001. A well-written survey of an innately fertile universe made to generate complex, quickening life.

From origin of life studies to complexity theory, from extrasolar planet detection to work on extremophiles, from pre-Cambrian paleontology to interstellar chemistry, the emerging message is clear and virtually unanimous: extraterrestrial life is there for the finding. (xii)

Dauphas, Nicolas, et al. Bayesian Inference on the Isotopic Building Blocks of Mars and Earth. arXiv:2309.15290. Origins Lab University of Chicago and Southwest Research Institute researchers describe an extensive study of elements and combinations that seemed to have an early role for these neighbor worlds. Some billions of years later, one habitable occasion just now reaches a collective cognizance which can undertake such studies. In regard, a main theme is an avail of these iterative methods as a way to hone in better results (see below).

Isotopic anomalies provide a means of probing the materials responsible for terrestrial planets. By way of new iron data from Martian meteorites and insights from published data for O, Ca, Ti, Cr, Fe, Ni, Sr, Zr, Mo, Ru, and Si, we analyze potential changes in compositions accreted by Mars and Earth during their formation. A Principal Component Analysis of meteorites identifies three main clusters: CI, CC=CM+CO+CV+CR, and NC=EH+EL+H+L+LL. (Excerpt)

Bayesian inference and Markov Chain Monte Carlo (MCMC) approach: In the context of a probabilistic model and prior distributions including both parameters of interest (𝐹) and nuisance (𝐼), MCMC strives to generate samples from the posterior distributions of given observed data (𝑇Y). Starting at a set of parameters, the algorithm iteratively proposes new parameters and decides on whether to accept or reject this present state based on a set of rules.(8, for example)

Davies, Paul. New Hope for Life Beyond Earth. Sky & Telescope. June, 2004. A new piece in the puzzle is the discovery of microbial organisms living at extremes of hot or cold temperatures, deep sea pressure or harsh chemical environments. With life’s niche much extended by these hardy “extremophiles,” it should conceivably be able to proliferate throughout the interstellar universe.

De Marcellus, Pierre, et al. Aldehydes and Sugars from Evolved Precommetary Ice Analogs. Proceedings of the National Academy of Sciences. 112/965, 2014. A team of astronomers from France and Mexico report findings of these organic precursors, which are attributed to a primordial water-bearing milieu when the solar system formed. See also Detection of a Branched Alkyl Molecule in the Interstellar Medium: iso-propyl cyanide by Arnaud Belloche, et al, in Science (345/1584, 2014) and Water Formation in the Early Universe (arXiv:1503.03475).. With sophisticated instrumental and computational capabilities, aided by international collaborations, an innately life-bearing cosmos is being well quantified and proven.

In molecular clouds out of which stars and planetary systems form, simple solid-state molecules made in large part of H2O, CO, CO2, CH3OH, and NH3 are abundantly present. In these environments, energetic and thermal processes on these ices, which can be simulated in the laboratory, lead to complex organic matter. Possibly at the origin of the organic matter in our Solar System and incorporated into planetesimals, this material may be considered as a potential source for prebiotic chemistry on telluric planets, following a process that may be quite universal. The composition of these laboratory-evolved ices includes potentially prebiotic species such as amino acids and, as presented in this paper, aldehydes and sugars. (Significance)

Previous   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10  Next  [More Pages]