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The Subaru Seminar is usually held in Room 104 of the Hilo Base Facility, adjacent to the main lobby. Everyone is welcome to attend. If you are interested in giving a seminar, please contact Subaru seminar organizers (Tae-Soo Pyo, Sherry Yeh, Nagayoshi Ohashi) by email : (please change"_at" to @).

May 05, Tuesday, 10:00 am in 104

" Thermodynamics, Evolution, Telescopes "

Olivier Lai and Nobuo Arimoto

(Subaru Telescope)

How can a Universe ruled by thermodynamics and its infamous Second Law generate structure, something which we witness on a daily basis? Francois Roddier recently published a book entitled "La Thermodynamique de l'évolution". It is a fascinating read in which he introduces recent advances in the field of thermodynamics of open systems and applies them to the apparition of structure, life, evolution and the history of our civilization. In fact in open systems, there turns out to be a Third Law which was only formalized as recently as 2003! I will introduce the general concepts that drive the emergence of structure in thermodynamics, and show through a wide variety of examples that the patterns and processes of these non-linear dynamical systems are recurrent and indeed very general. One such example is of course biological evolution, which provides an easy-to-grasp analogy for the evolution of Astronomy in the last century. Having been hired on a joint appointment between Gemini Observatory and Subaru Telescope with the idea of fostering collaborations, I quickly realized that each observatory's culture, projects and even motivations would make such a task difficult using traditional means. This situation led me, using our recently acquired understanding of open systems, to develop - from first principles, as it were - a new type of lightweight and highly adaptable collaborative structure, based on the concept of meta-consulting. I am proposing to implement this concept around adaptive optics on Mauna Kea in the CHAOPTIX experiment. I will describe the way CHAOPTIX might operate, but I will seek your input as to how both observatories and their staff will most benefit from any potential collaborations, not just limited to adaptive optics. The seminar will lead into an open discussion with the goal of gathering both momentum and feedback so as to structure and tailor the CHAOPTIX concept to the needs of its users within the paradigm of open and distributed systems.

Seminars are also held at JAC, CFHT, and IfA.

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