The Chinese Academy of Sciences and the National Astronomical Observatory of the Chinese Academy of Sciences jointly issued the first results of the world's largest single-aperture radio telescope, the 500-meter spherical radio telescope (FAST) today. The reporter learned that the commissioning of the FAST telescope exceeded the expectation and the first newly discovered pulsar - detected dozens of high quality pulsar candidates, 6 of which have passed the international certification.
As one of the important science and technology equipment in China during the 11th Five-Year Plan period, FAST, invested by the National Development and Reform Commission, completed construction on September 25, 2016 and entered the trial operation and trial phase. Under the close collaboration of FAST science and engineering teams, the National Astronomical Observatories of the Chinese Academy of Sciences led a number of domestic units to smooth the operation of various observation modes such as pointing, tracking and drift scanning after one year of intense debugging. The commissioning progress exceeded expectations and Large-scale similar equipment of international practice; and has begun systematic scientific output.
The FAST team used dozens of high-quality pulsar candidates to conduct data processing using the FAST Early Science Center at Guizhou Normal University. International collaborations, such as using the 64-meter Parkes telescope in Australia, followed by observational validation, have now led through the system Certified 6 pulsars. This is the first newly discovered pulsar in China's radio telescope.
The search and discovery of radio pulsars is a FAST core science goal. There are a large number of pulsars in the Milky Way, but due to its weak signal, it is easily submerged by man-made electromagnetic interference and only a small part is currently observed. FAST telescopes with extreme sensitivity are ideal for detecting pulsars. FAST discovered pulsars in the early stages of commissioning. Initially demonstrating the scientific capabilities of FAST's independent innovation thanks to fruitful early scientific planning and human resources, technical reserves, China opened the door to China The radio band science device system produced the original discovery of the era of agitation. In the future, FAST will hopefully find more punctual and accurate millisecond pulsars, making an original contribution to the pulsar timing array to detect gravitational waves.
According to reports, the next two years, FAST will continue to debug, with a view to achieving design targets, through the national acceptance, to achieve opening up for domestic and foreign scholars. At the same time, further verification and optimization of the scientific observation mode will continue to produce astronomical findings and will strive to build FAST into a world-class telescope as soon as possible.
ã€About FAST】
FAST project is a research, promotion and construction by the National Astronomical Observatory Fellow, Chief Scientist of FAST Engineering, chief engineer Nan Ren East team for more than 20 years, completed on September 25, 2016 with the support of the National Development and Reform Commission. FAST since its inception, has been from home and abroad, all sectors of the community's attention and expectations. Xi Jinping and other party and state leaders also made FAST clear instructions and requirements: early results, more results, good results, big results.
FAST is located in Pingtang County, Guizhou Province, known as the Tai Wo Taipa karst depression, based on all three of China's independent intellectual property innovation - site selection, cable active reflective surface, flexible cable coupled parallel robot feed support, FAST broke the radio telescope project limits, built into the world's largest single-aperture radio telescope, its receiving area equivalent to 30 football field size. Defined by researcher Nan Ren Dong, "the observation equipment for the next generation of astronomers" is the world's most sensitive single-aperture radio telescope.
About pulsar
Pulsars are produced by stellar evolution and supernova explosions, named for transmitting periodic pulse signals. The essence of a pulsar is a neutron star, with extreme physical properties that can not be achieved in a ground-based laboratory. It is an ideal astrophysical laboratory and its research is hopeful of answers to many major physics problems. For example: pulsar rotation cycle is extremely stable, accurate clock signal for gravitational wave detection, spacecraft navigation and other major science and technology applications provide an ideal tool.
On February 11, 2016, after the LIGO cooperation group announced the first direct detection of gravitational waves predicted by General Relativity Theory for a long time, the detection of gravitational waves has become a hot topic in astronomy. Long-term monitoring of rapidly rotating radio pulsars selects a certain number of pulsars to form a timing array for detecting low frequency gravitational waves from celestial bodies such as supermassive black holes. FAST will hopefully find more punctual millisecond pulsars making original contributions to the pulsar timing array for detecting gravitational waves.
Modern Oxygen Sensor,Sonata Octopus Oxygen Sensor,Modern Auto Oxygen Sensor,Modern Automotive Oxygen Sensor
Wenzhou Hua jue Automobile Electronic Technology Co., LTD , https://www.wenzhouhuajue.com