Konferenzen zum Thema Astronomie, Astrophysik und Kosmologie in der Tschechischen Republik

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Wheel of Star Formation: A conference dedicated to Prof. Jan Palouš
14. Sep 2020 - 18. Sep 2020 • Prag, Tschechische Republik
This is a meeting to celebrate the life-time work and contributions to astronomy of Jan Palouš. Among other topics that have always interested Jan is the gas cycle in galaxies, in particular how star formation influences their evolution. With the advance of new instruments and computational capacities in the recent years, there have been many unexpected observational discoveries and sophisticated simulations. This brings a desire to think anew about these topics, and try to connect these sometimes conflicting findings with the greater picture of star formation as a key element in the evolution of the Universe. The goal of the meeting is to gather researchers actively working in the field, to present and discuss the up-to-date advances and discoveries, as well as identify the important questions and initiate discussions on their solution strategies.
CSS 2020 — Cosmology on Small Scales 2020: Excessive Extrapolations and Selected Controversies in Cosmology
23. Sep 2020 - 26. Sep 2020 • Prag, Tschechische Republik
Institute of Mathematics, Czech Academy of Sciences
According to the modern cosmological paradigm, about 2/3 of the energy of the Universe is in the dark form and about 5/6 of the matter is invisible. However, numerous recent attempts to detect independently the dark-matter particles failed, and a number of other problems with the existence of dark energy and dark matter (such as the anomalous friction in the dark-matter halos of galaxies, etc.) become now more and more obvious. All these troubles raise the question if the "dark" substance is merely a result of excessive extrapolations involved in the theoretical analysis? So, it is timely to gather specialists from various branches of astronomy and astrophysics to discuss these issues.
Mathematical aspects of the extrapolations used in cosmology, Arguments for and against dark matter, and revisiting the foundations of physics, Alternative models for dark matter and dark energy, A systematic discord in the value of the Hubble constant derived by different methods, Theoretical possibility and observational evidence for small-scale cosmological effects, Complementary redshifts of non-cosmological nature, Quantum effects on the early universe and their observational imprints at the present time
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Stand vom 13. Dezember 2019