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27 April 2024

» arxiv » 1208.2270

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From Protoplanetary Disks to Extrasolar Planets: Understanding the Life Cycle of Circumstellar Gas with Ultraviolet Spectroscopy
Kevin France ; Matthew Beasley ; David R. Ardila ; Edwin A. Bergin ; Alexander Brown ; Eric B. Burgh ; Nuria Calvet ; Eugene Chiang ; Timothy A. Cook ; Jean-Michel Désert ; Dennis Ebbets ; Cynthia S. Froning ; James C. Green ; Lynne A. Hillenbrand ; Christopher M. Johns-Krull ; Tommi T. Koskinen ; Jeffrey L. Linsky ; Seth Redfield ; Aki Roberge ; Eric R. Schindhelm ; Paul A. Scowen ; Karl R. Stapelfeldt ; Jason Tumlinson ;
Date:	10 Aug 2012
Abstract:	Few scientific discoveries have captured the public imagination like the explosion of exoplanetary science during the past two decades. This work has fundamentally changed our picture of Earth’s place in the Universe and led NASA to make significant investments towards understanding the demographics of exoplanetary systems and the conditions that lead to their formation. The story of the formation and evolution of exoplanetary systems is essentially the story of the circumstellar gas and dust that are initially present in the protostellar environment; in order to understand the variety of planetary systems observed, we need to understand the life cycle of circumstellar gas from its initial conditions in protoplanetary disks to its endpoint as planets and their atmospheres. In this white paper response to NASA’s Request for Information "Science Objectives and Requirements for the Next NASA UV/Visible Astrophysics Mission Concepts (NNH12ZDA008L)", we describe scientific programs that would use the unique capabilities of a future NASA ultraviolet (UV)/visible space observatory to make order-of-magnitude advances in our understanding of the life cycle of circumstellar gas.
Source:	arXiv, 1208.2270
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