Results 21 to 30 of about 12,121 (264)
The cosmic evolution of magnesium isotopes [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 The abundance of magnesium in the interstellar medium is a powerful probe of star formation processes over cosmological timescales. Magnesium has three stable isotopes, 24Mg, 25Mg, 26Mg, which can be produced both in massive and intermediate-mass (IM) stars with masses between 2 and 8 M_\odot.
Vangioni, E., Olive, K.A.
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Evolution of the Early Solar System in Terms of Big History and Universal Evolution
Journal of Big History, 2018 The present contribution is devoted to some aspects of history and evolution of the early Solar system. The origin of the Sun, Earth, other planets and its satellites has long been a matter of great concern for people.
Leonid Grinin
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The horizon of the McVittie black hole: on the role of the cosmic fluid modeling
European Physical Journal C: Particles and Fields, 2020 In this paper, we investigate the existence and time evolution of the cosmological and event horizons in a McVittie universe whose expansion is driven by the Redlich–Kwong, (Modified) Berthelot, Dieterici, and Peng–Robinson fluids, respectively.
Daniele Gregoris, Yen Chin Ong, Bin Wang
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The Astrophysical Journal, 2023 We propose a model of the Universe (dubbed η CDM) featuring a controlled stochastic evolution of the cosmological quantities that is meant to render the effects of small deviations from homogeneity/isotropy on scales of 30–50 h ^−1 Mpc at late cosmic ...
Andrea Lapi +6 more
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Cosmic dust evolution: The challenges for NIKA2 [PDF]
EPJ Web of Conferences, 2022 I summarize a recent study aimed at constraining dust evolution timescales in nearby galaxies. We were able to quantify the effciency of dust condensation in SN II ejecta, grain growth in the ISM and dust destruction by SN II blast waves.
Galliano Frédéric
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The Polyfurcation Century: Does the Evolution on Earth Have a Cosmological Relevance?
Journal of Big History, 2018 Special cross-disciplinary research and respective calculations done independently by scientists from various countries have shown that the 21st century is expected to be crucial for the human history.
Akop P. Nazaretyan
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Journal of Big History, 2019 The idea that our Universe emerged as a result of the extraordinary power of the Big Bang from singularity (i.e., a state of an infinitely small quantity and infinitely high concentration of matter) is still very popular today.
Leonid Grinin
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Consistency test on the cosmic evolution [PDF]
Physical Review D, 2015 We propose a new and robust method to test the consistency of the cosmic evolution given by a cosmological model. It is realized by comparing the combined quantity r_d^CMB/D_V^SN, which is derived from the comoving sound horizon r_d from cosmic microwave background (CMB) measurements and the effective distance D_V derived from low-redshift Type-Ia ...
Gong, Yan +3 more
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Pensamiento. Revista de Investigación e Información Filosófica, 2019 In this paper we discuss the hot topic of Big History, doing a brief description of the evolution: from the cosmic evolution to the biological evolution.
Ricard Casadesús Castro
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On the evolution of the cosmic supernova rates [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 LaTeX, 19 pages, 3 figures, to be published in the ...
Madau, P., Della Valle, M., Panagia, N.
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