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Thread: China gears up to support its deep space exploration

  1. #31
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    FAST identifies another three pulsars

    http://news.xinhuanet.com/english/20..._136819885.htm

    "The China-based FAST, the world's largest single-dish radio telescope, has discovered three new pulsars, the National Astronomical Observatories of China (NAOC) said Tuesday.

    So far, FAST has identified a total of nine pulsars since its trial operations began in September 2016.

    According to Zhang Shuxin, deputy chief of the NAOC's Guizhou branch, the discovery of more pulsars will be common for FAST in the future"

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  2. #32
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    They are planning to build 2 to 10, 30 meter radio telescopes around FAST, for resolution of the array will be around 100 times greater than currently.

    http://www.xinhuanet.com/english/201..._137029388.htm

    Chinese scientists are considering setting up smaller radio telescopes surrounding FAST to increase array resolution, authorities said.

    According to the FAST observation station with the National Astronomical Observatories, two to 10 radio telescopes measuring 30 meters in diameter may be set up around FAST, the world's largest single-dish radio telescope.

    The resolution of the array will be around 100 times greater than currently.

    FAST will have a more advanced radio receiver as early as end of April.

  3. #33
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    FAST has identified 11 confirmed pulsars.

    http://www.xinhuanet.com/english/201..._137036270.htm

    China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST), the world's largest single-dish radio telescope, has discovered 11 new pulsars so far, the National Astronomical Observatories of China (NAOC) said Tuesday.

    Since FAST started trial operations in September 2016, it has discovered 51 stars which bear features similar to pulsars, and 11 of them have been confirmed as new pulsars by observatories in other countries.

  4. #34
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    US has confirmed a radio millisecond pulsar discovered by China's Five-hundred-meter Aperture Spherical radio Telescope (FAST).

    http://english.cas.cn/newsroom/news/...8_192089.shtml

    FAST, the world's largest single-dish radio telescope launched in 2016, has discovered more than 20 new pulsars so far.

    The millisecond pulsar discovery was made by FAST on Feb. 27 and confirmed by the Fermi-LAT team in reprocessing of Fermi data on April 18, which was a step closer to detecting low-frequency gravitational waves, the Chinese Academy of Sciences said Friday.

    The newly discovered pulsar, now named PSR J0318+0253, is confirmed to be isolated through timing of gamma-ray pulsations, making it the first result from the FAST-LAT collaboration outlined in a Memorandum of Understanding signed between a FAST team and an Fermi-LAT team.

    "This discovery demonstrated the great potential of FAST in pulsar searching, highlighting the vitality of the large aperture radio telescope in the new era," said Li Kejia, a scientist at the Kavli Institute for Astronomy and Astrophysics at Peking University.

    According to researchers, radio follow-up of Fermi-LAT unassociated sources is an effective way to find new pulsars.

    In a one-hour tracking observation with the FAST ultra-wide band receiver, the pulsar's radio pulses were detected with a spin period of 5.19 milliseconds, an estimated distance of about 4,000 light-years, making it potentially one of the faintest radio millisecond pulsars (MSPs).

  5. #35
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    FAST to be upgraded to increase FAST's survey speed by five to six times.

    http://www.xinhuanet.com/english/201..._137193128.htm

    China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST), the world's largest single-dish radio telescope, will have with a new receiver installed to boost its efficiency in surveying the sky.

    The 19-beam L-band receiver, first of its kind worldwide, is expected to be put into use in early June and it will increase FAST's survey speed by five to six times, according to Friday's Science and Technology Daily.

    The receiver was jointly developed by scientists from China and Australia. It weighs 1.2 tonnes and cost over 20 million yuan (about 3.14 million U.S. dollars).

    Jin Chengjin, chief engineer of FAST's receiver system, said the new receiver has the highest sensitivity and will greatly improve FAST's efficiency in searching for new pulsars and spectral lines.

  6. #36
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    China has built a new lab to support FAST operations.

    https://gbtimes.com/new-lab-for-the-...a?cat=business

    The Chinese Academy of Sciences (CAS) has opened a new lab designed to complement the Five-hundred-meter Aperture Spherical Telescope (FAST) in southwest China's Guizhou Province, according to a press release by the National Astronomical Observatories of China (NAOC).

    Known as KLFAST, the lab, located in Pingtang County, will focus on promoting the research and technological development of low frequency radio astronomy based on the telescope's findings. Further, it will promote international cooperation with the Square Kilometre Array (SKA), an international effort to build a multi radio telescope project with a total collecting area of one million square metres. If built, SKA would be 50 times more sensitive than any other radio instrument.

  7. #37
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    China is trying to "build a scientific culture around radio astronomy".

    https://www.wired.com/story/china-fa...cope-tourists/

    He lives in a country that wants to accrete a community of radio astronomers, not winnow one down. A country that wants to support (and promote) ambitious telescopes, rather than defund the ones it has. China isn’t just trying to build a tourist economy around its telescope—it’s also trying to build a scientific culture around radio astronomy.

    That latter part seems like a safe bet. But the first is still uncertain. So is how the tourist economy will affect—for better or worse—FAST’s scientific payoff. “Much like their CRAFTS survey is trying to make everyone happy—all the different kinds of radio astronomers—this will be a true test of ‘Can you make everyone happy?’” says Stierwalt. “Can you make a prosperous astronomy town right next to a telescope that doesn’t want you to be using your phone or your microwave?”

    Right now, nobody knows. But if the speed of everything else in Guizhou is any indication, we’ll all find out fast.
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  8. #38
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    China's Five-hundred-metre Aperture Spherical Radio Telescope (FAST) has discovered 44 new pulsars since it started trial operations in September 2016.

    https://gbtimes.com/chinas-fast-has-...ars-since-2016

    China’s Five-hundred-metre Aperture Spherical Radio Telescope (FAST) has discovered 44 new pulsars since it started trial operations in September 2016, according to the National Astronomical Observatories at the Chinese Academy of Sciences.

    Li Di, FAST's chief scientist, said at an astronomical forum held in Xuyi County, Jiangsu Province that the world’s largest radio telescope is expected to be available to the country’s astronomers in 2019
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  9. #39
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    "China revises regulation to better protect world's largest telescope"

    http://www.xinhuanet.com/english/201..._137765500.htm

    No cell phones, no digital cameras, and no smart wearable devices -- the Guizhou provincial government has revised a regulation to keep the noise down and prevent human activities from affecting the world's largest telescope.

    The blanket ban is enforced on radio equipment and electromagnetic gadgets, including tablets, speakers and drones, in the core silence zone of the Five-hundred-meter Aperture Spherical Telescope (FAST).

    The total quiet area of FAST includes a 5-km radius as the core zone, 5 km to 10 km radius as the intermediate zone and a peripheral zone that covers 10 km to 30 km in radius.

    Visitors and tourists who enter the quiet area shall abide by the regulation to minimize confusing operations of the telescope.
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  10. #40
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    Quote Originally Posted by selvaarchi View Post
    China's Five-hundred-metre Aperture Spherical Radio Telescope (FAST) has discovered 44 new pulsars since it started trial operations in September 2016.

    https://gbtimes.com/chinas-fast-has-...ars-since-2016
    The number of pulsars now stands at 84.

    http://www.xinhuanet.com/english/201..._138195446.htm

    China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST), the world's largest single-dish radio telescope, has discovered 84 new pulsars since its trial operation began in September 2016, Jiang Peng, FAST chief engineer told Xinhua on Wednesday.
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  11. #41
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    "Earth's largest radio telescope to search for "new worlds" outside solar system"

    As well as hunting for signals from alien life, the largest and most sensitive radio telescope ever built will search for extra-solar planets, or exoplanets, which have magnetic fields like Earth, within 100 light-years from Earth.

    Astronomers from countries including China and France recently published their ambitious observation plan using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) in the academic journal Research in Astronomy and Astrophysics.

    Li Di, a researcher at the National Astronomical Observatories of the Chinese Academy of Sciences and chief scientist of FAST, said scientists are more concerned about habitable planets, which should have not only water, a suitable temperature and atmosphere, but also magnetic field.
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  12. #42
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    "Planned extension to China's FAST telescope to search for extraterrestrial life"

    http://en.people.cn/n3/2019/0802/c90000-9602840.html

    China plans to build an extension on its Five-hundred-meter Aperture Spherical Radio Telescope (FAST) to search an area of up to 100 lightyears from earth, for planets with magnetic fields similar to ours. The aim? To find extraterrestrial life, Science and Technology Daily reported on Thursday.

    "Though FAST is the most sensitive radio telescope in the world, its resolution is not good enough to observe extrasolar planets, due to the limitation of its caliber. We hope to build a FAST extension matrix which can help increase the spatial resolution of FAST by 10 to 100 times," said Li Di, a researcher at the National Astronomical Observatories of the Chinese Academy of Sciences and chief scientist of FAST.

    According to Li, they plan to lay an intensive network around the current FAST spherical surface with 5-meter caliber antenna and simplified receiving unit, to extend the effective baseline from the present 300 meters to dozens of kilometers.
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  13. #43
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    China's Five-hundred-meter Aperture Spherical radio Telescope (FAST) celebrates its 3rd year of operation.

    http://en.people.cn/n3/2019/0829/c90000-9610220.html

    Photo taken on Aug. 27, 2019 shows China's Five-hundred-meter Aperture Spherical radio Telescope (FAST) in southwest China's Guizhou Province. China's FAST, the world's largest single-dish radio telescope, will greet the third anniversary of operation that began in September 2016
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  14. #44
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    "Researchers test microgravity mechanism in FAST maintenance"

    http://www.xinhuanet.com/english/201..._138352526.htm

    Staff members celebrate as they finish testing a microgravity mechanism in the maintenance of the reflector panels on the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) in Pingtang County, southwest China's Guizhou Province, Aug. 30, 2019. Researchers with the China-based FAST, the world's largest single-dish radio telescope, on Friday tested a microgravity mechanism in the maintenance of the telescope's 4,450-panel reflector. The micro-G mechanism aims to help reduce the maintenance staff's body weight to a value within the reflector panels' range of durability using a helium-filled balloon 7.6 meters in diameter. (Xinhua/Ou Dongqu)
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  15. #45
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    "FAST telescope discovers multiple pulses from FRB 121102"

    http://www.ecns.cn/news/cns-wire/201...i2499965.shtml

    China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST), the world's largest single-dish radio telescope, has for the first time detected eruptive pulses of radio energy from an object known to the astronomy community as FRB 121102.

    There have been less than 100 fast radio bursters (FRBs) discovered, and FRB 121102 is the only one that has been detected erupting more than once, with the previous detection in 2015 by the Arecibo radio telescope. Repetition is considered important for those trying to unravel the nature of these mysterious objects.

    Now FAST, located in a naturally deep and round karst depression in southwest China's Guizhou Province, has also detected multiple eruptions from FRB 121102, thought to be located in a dwarf galaxy about three billion light-years from Earth.

    Zhang Xinxin, an associate engineer with the National Astronomical Observatory of China, said FAST first detected the pulse on the morning of August 30 after searching for more than a month.
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  16. #46
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    "FAST closely monitoring unknown repetitive fast radio burst"

    http://www.chinadaily.com.cn/a/20191...e3556ee2b.html

    Chinese scientists are paying close attention to a repeating fast radio burst by making follow-up observations during the country's National Day holiday.

    Scientists are not sure yet what kind of celestial body it comes from, nor do they know its distance from us, said Qian Lei, associate researcher at the National Astronomical Observatories of the Chinese Academy of Sciences.

    The repetitive burst, code-named FRB121102, was first discovered in September when researchers processed daily cosmic radio signal data received by the Five-hundred-meter Aperture Spherical Radio Telescope (FAST), also dubbed as the "China Sky Eye".

    Rapid bursts are usually short and intense, far less numerous than pulsars, and such a repetitive burst is even less common, according to Qian, also head of the "China Sky Eye" observation program.

    "We hope to find out the nature and potential laws of the repeating fast radio burst by studying its pulses statistically," he said.
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