echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Biochemistry News > Biotechnology News > The Clearest Picture of the Sun's Surface by the American Solar Telescope.

    The Clearest Picture of the Sun's Surface by the American Solar Telescope.

    • Last Update: 2020-08-05
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    Some time ago, the National Science Foundation's (NSF) Daniel K Inouye solar telescope in Hawaii captured the clearest images of the sun's surface to date.
    high-definition images, the sun appears to be flowing gold, showing the sun as a plasma complex structure, providing further material for humans to understand the sun and predict solar activity. how did
    take the picture? What will come with the telescope in the future? Listen to what Wang Jingxuan, a member of the Chinese Academy of Sciences, has to say q: What are the characteristics of the Daniel K Inouye Solar Telescope in Hawaii, which is currently the world's largest solar telescope? What are the scientific goals? Wang Jingxuan: This is the world's largest solar telescope, located in the eastern part of Maui, Hawaii. The
    Daniel Kay Inon's solar telescope, a 4-meter-diameter telescope funded by the National Natural Science Foundation of the United States, was developed and operated by the National Solar Observatory of the United States over a 20-year and costing $344 million.
    the Inonta Solar Telescope, which "opened its light" last December, is observing the sun at a level of great precision that has never been seen before.
    its scientific goal is to make the most accurate measurements of the sun's magnetic field, including unprecedented measurements of the sun's atmosphere or coronal magnetic field, to answer some of the most important scientific questions, such as why the sun's corona is a million degrees hotter than the sun's surface, and how the solar atmosphere's flipping magnetic field drives solar storms and affects life on Earth.
    Q: How was this photo taken? Wang Jingxuan: This photo was released on January 29th and is a monochrome image of the surface of the sun's light ball taken by the Inontin Solar Telescope, possibly made up of multiple photographs.
    its daily surface spatial resolution reaches 35 km.
    imagine, 150 million kilometers away from the sun on the Earth, human scant the surface of the sun 35 kilometers of structural features, this is such a shocking miracle of science and technology! Q: What are the irregular shapes on the photo? Why is this what the sun's surface is like this? What information can we get out of this picture? Wang Jingxuan: The photo shows an ultra-hot atmosphere on the surface of the sun. The irregular shape in the
    graph is a pattern of turbulent convection.
    those bright "metabubbles" are bubbles that tip upward from the sun's interior, i.e. superheated plasmas that contain the positive and negative charge of ionization.
    and the structure of the "dark-diameter" class is the cooled plasma that falls in the flow.
    each bright "meta bubble" and the surrounding "dark path" to form a "sun rice grain" like popcorn.
    they are a basic structure of stellar convection.
    worth mentioning is that the image of the "rice particledark diameter" only a few tens of kilometers of fine structure, some of the performance of "bright spots", some shaped like "wire mesh."
    they were found by Dunn and others in lower-resolution observations.
    in recent years, the structure of dark diameter has been confirmed and studied by more observations on the ground and in space, also known as "dark trail highlights".
    However, at a lower resolution, it is not possible to distinguish these extremely fine features structurally, let alone to make reliable diagnosis of them physically, and their "true appearance" may only be revealed by the Inontin Solar Telescope, which may provide important clues to difficult problems such as the heating of the corona.
    Q: The Dunn Solar Telescope has taken pictures of the sun before, what is the feature of the Dunn Solar Telescope? What's the difference between the picture taken this time and what it used to be? Wang Jingxuan: The Dunn Solar Telescope is a 1.5-meter-diameter vacuum-tower solar telescope launched by the National Solar Observatory in 1969 and is known for its high-resolution spectral imaging observations in Sark, New Michigan.
    later in recognition of the contribution of the observatory's solar physicist, Dunn, who was named the Dunn Solar Telescope.
    to build the Inonc?un Solar Telescope, the National Funding Commission has cut funding for the Dunn Solar Telescope, making it the main facility for the Sunspot Solar Observatory, which is funded by the Fund, New Mexico and privately.
    the Dunn Solar Telescope has achieved many important achievements, including high-resolution observations of solar convection and the discovery of the filament-like bright spot structure (filigree) in the dark diameter of rice grains (filigree) in 1974.
    Dunn Telescope was equipped with a high-order adaptive optical system in 2004, further enhancing the performance of high-resolution observations.
    compared with the best light-ball images of the past, such as the early Dunn Solar Telescope, the Inonta Solar Telescope observed a spatial resolution of about three times.
    46 years after the discovery of a fine silky bright spot structure in the dark diameter of the rice grains, solar physicists may have obtained the first detailed images of them.
    is now released just monochrome, and finer magnetic and kinetic measurements will provide more physical information.
    Q: Still in the test phase of the Inonc?solar telescope took such a clear picture of the sun, in the future it will also install more advanced instruments, such as low-temperature near-infrared spectrophotometer, diffraction limit near-infrared spectral polarization, what is the role of these two instruments? How will it help scientists explore the sun? Wang Jingxuan: The Inonta Solar Telescope is equipped with 5 sets of end-of-devices to ensure the highest accuracy and sensitivity of magnetic field polarization measurements at high spatial resolution, in the sun and in the sun's atmosphere.
    cryogenic near-infrared spectral polarization instrument and two-dimensional near-infrared fiber spectral polarization instrument will directly measure the magnetic field in the solar atmosphere, including the corona, and may be the two most important sets of equipment of the Inonta Solar Telescope.
    so far, the direct measurement of the sun's magnetic field has been limited to the surface of the sun's light sphere, and knowledge of the magnetic field of the sun's atmosphere (color sphere, transition zone and corona) has come mainly from theoretical reconstruction under simplified assumptions. the lack of reliable observations
    limits scientists' understanding of the origin and mechanism of solar magnetic activity, leading to problems such as coronal heating and solar wind origin.
    three other devices include a fast broadband filter monochromator, a dual-light road visible slit spectral polarizer, and a multi-band imaging spectral polarization meter.
    the journal Nature magazine is just a photo of the light ball taken after the inon-dinsolar solar telescope opens, and the telescope's scientific observations will be months before it officially begins.
    the Inondy Solar Telescope and the Near-Sun-to-Sun Parker Solar Probe (PSP) and the Solar Orbiter, which will be launched this week by ESA, mark the beginning of a new era in solar exploration and offer significant opportunities and challenges for solar physics research in China.
    Chinese scientists are working hard to realize China's first solar satellite, the Advanced Space-Based Solar Observatory (ASOS), and to prepare scientific and technical for the 8-meter-diameter Advanced Ground-based Solar Observatory (ASOG).
    interviewed by expert Wang Jingxuan, academician of the Chinese Academy of Sciences, researcher of the National Observatory of the Chinese Academy of Sciences, senior chair professor of the University of the Chinese Academy of Sciences, co-executive editor of Research in Andastrophysics.
    Source: National Observatory, Chinese Academy of Sciences.
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.