12/16/2023 0 Comments Sun corona discvored![]() The research team focused on jets of plasma known as spicules, which are fountains of plasma propelled upward from near the surface of the Sun into the outer atmosphere.įor decades scientists believed spicules could send heat into the corona. The results are also a great example of the power of collaboration among university, private industry and government scientists and organizations." "They provide new insight about the energy output of the Sun and other stars. "These observations are a significant step in understanding observed temperatures in the solar corona," says Rich Behnke of NSF's Division of Atmospheric and Geospace Sciences, which funded the research. The research, results of which are published this week in the journal Science, was conducted by scientists from Lockheed Martin's Solar and Astrophysics Laboratory (LMSAL), NCAR, and the University of Oslo. It was supported by NASA and the National Science Foundation (NSF), NCAR's sponsor. "By identifying that these jets insert heated plasma into the Sun's outer atmosphere, we can gain a much greater understanding of that region and possibly improve our knowledge of the Sun's subtle influence on the Earth's upper atmosphere." "It's always been quite a puzzle to figure out why the Sun's atmosphere is hotter than its surface," says Scott McIntosh, a solar physicist at the High Altitude Observatory of the National Center for Atmospheric Research (NCAR) in Boulder, Colo., who was involved in the study. The finding addresses a fundamental question in astrophysics: how energy is moved from the Sun's interior to create its hot outer atmosphere. Now scientists believe they have discovered a major source of hot gas that replenishes the corona: jets of plasma shooting up from just above the Sun's surface. One of the most enduring mysteries in solar physics is why the Sun's outer atmosphere, or corona, is millions of degrees hotter than its surface. Telephone numbers or other contact information mayīe out of date please see current contact information at media This material is available primarily for archival Narrow jets of material, called spicules, streak upward from the Sun's surface at high speeds. Office of Small and Disadvantaged Business Utilization (OSDBU).Budget, Performance and Financial Reporting.National Center for Science and Engineering Statistics (NCSES).Award Statistics (Budget Internet Info System). ![]() Proposal and Award Policies and Procedures Guide (PAPPG).Responsible and Ethical Conduct of Research.Technology, Innovation and Partnerships (TIP).Social, Behavioral and Economic Sciences (SBE).Mathematical and Physical Sciences (MPS).International Science and Engineering (OISE).Environmental Research and Education (ERE).Computer and Information Science and Engineering (CISE).
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