China News Agency, Beijing, April 8th (Reporter Sun Zifa) The reporter learned from the Institute of High Energy Physics of the Chinese Academy of Sciences (Institute of High Energy Physics, Chinese Academy of Sciences) on the 8th that China’s first space X-ray astronomical satellite-the "Intelligent Eye" hard X-ray modulation telescope (Insight) -HXMT) satellite, which has been in orbit for 45 months, has been operating well and has obtained a large amount of observational data such as galactic surveys, black holes, neutron stars, and solar flares. The detection rate of gamma-ray bursts is about 100 per year.
The "Wisdom Eye" satellite recently released the 4th round of proposal solicitation announcement, inviting the astronomy community to submit core and guest observation proposals to apply for the observation time of the "Wisdom Eye" satellite. Among them, the core observation proposal will be proposed by the "Wisdom Eye" core scientific team, and guest observations are for the global The scientific community is open.
Researcher Zhang Shuangnan, director of the Center for Particle Astrophysics of the Institute of High Energy, Chinese Academy of Sciences and chief scientist of the "Eye" satellite, said that a total of 47 megaseconds of effective observation time was collected in this round, and the ratio of core proposals to guest proposals is 2:3, among which are non-burst sources or temporary sources. The current source (non-ToO) observation is 12 megaseconds, the ToO observation is 35 megaseconds (about 10% of the outbreak probability), and about 2 megaseconds are reserved for temporary ToO observations and temporary calibration observations.
The core observation proposal refers to the observation proposal submitted by the core scientific group of the "eyes of wisdom", which is submitted by the core scientific working groups after discussion and determination within the group.
Proposals that involve scanning and observation of the galactic plane are core observation proposals, and are not open as guest proposals for the time being.
Guest observation proposals refer to applications for observation proposals that are made in response to the notice of the "Huiyan" satellite soliciting guest observation proposals and do not overlap with the core scientific objectives of the "Huiyan" satellite.
Guest observations are open to the world, not limited to countries, and there is no prior time allocation.
Members of the core science team can submit observation proposals in their own name, and the proposal will be reviewed and implemented in accordance with the guest observation proposal.
The fourth round of observation proposal collection for the "Smart Eye" satellite started at 0:00 on April 1st, Beijing time, and ended at 24:00 on April 30th. The review results of the observation proposals will be released on June 30. Observations will start on August 1st, and July 2022. 31 Japan round proposal observation is over.
The "Wisdom Eye" satellite was launched in June 2017. It is equipped with three high-energy, medium-energy, and low-energy X-ray telescopes, which are mainly on-orbit detectors. It can achieve wide-band, large-field X-ray surveys and study black holes, The short-time scale light variation and wide-band energy spectrum of high-energy celestial bodies such as neutron stars are also an all-sky monitor for gamma-ray bursts with large field of view and large area.
The "Wisdom Eye" satellite has three main scientific goals: searching for new temporary sources on the silver disk, monitoring known sources of variation; observing X-ray binary stars to study the movement and radiation mechanisms in strong gravitational or magnetic fields; monitoring and researching galaxies The electromagnetic counterpart of horse-ray bursts and gravitational waves.
Zhang Shuangnan said that up to now, the "eyes" satellite has achieved a number of important scientific research results: participated in monitoring the electromagnetic counterpart of the first double neutron star merger gravitational wave event (GW170817); measured neutron stars with X-ray energies up to 90,000 electron volts Magnetic field cyclotron absorption line; discovery of quasi-periodic oscillations of black hole binary star systems with X-ray energies higher than 200,000 electron volts; discovery of high-speed outward plasma flow of black hole binary stars, and the first observation of coronal velocity evolution in black hole binary stars; discovery A single type I nuclear explosion of a neutron star cools the accretion disk corona; the X-ray counterpart of a fast radio burst (FRB) was discovered and verified for the first time; the scanning and monitoring of the silver disk obtained a large number of X-ray celestial bodies' broad-band explosion activity, Monitored and discovered multiple candidates for new variable sources; completed China's most high-precision pulsar navigation test; participated in multiple international space and ground joint surveys.
"These observational studies show that the'Wisdom Eye' satellite has not only achieved its predetermined scientific goals, but also has achieved important scientific results that have exceeded expectations. There will be more important astronomical discoveries in the future. Chinese and foreign astronomers are welcome to use the "Wisdom Eye" satellite to carry out Scientific research." Zhang Shuangnan said.
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