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Pulsars are end-products from the evolution of massive stars. Over the past 60 years, there have been many significant discoveries, such as the discoveries of the first pulsars, the first binaries, millisecond pulsars, magnetars, the only triple systems. However, many fundamental questions about pulsars remain unanswered, such as how many pulsars are there in the Milky Way, how they are distributed, what the luminosity function is like? Where and how the pulsar radiation is generated in the pulsar magnetosphere? Which channels to form what kinds of pulsar binaries? Since 2000, we have used the FAST to conduct a pulsar survey in the accessible sky area within ±10 degrees of the galactic plane. So far, about 900 pulsars have been discovered. We have revealed the faint pulsar population in the Milky Way and have detected 9 cases of FRB. Among the newly discovered pulsars, there are more than 200 millisecond pulsars; Among 180 binary pulsars, there are 10 double neutron star systems. Particular interesting discoveries include a pulsar binary system with the shortest orbital period (53 minutes), a pulsar in an evolving triple system, the double neutron stars with the largest eccentricity, the double neutron stars with lightest total mass, an eclipsing pulsar in a compact orbit formed from the common envelope evolution, double neutron stars in ultracompact orbits of 15 minutes and 90 minutes. We have measured the relativistic effects of some pulsar binary systems, and determined the masses of a dozen of neutron stars.

BIO

Han Jinlin is the chief of Radio Astronomy Division of the National Astronomical Observatories of Chinese Academy of Sciences, a professor at the University of Chinese Academy of Sciences, an adjunct professor at Peking University and Nanjing University. He has also received the National Excellent Scientist Award, the Zhang Yuzhe Award of the Chinese Astronomical Society, the National Innovation and Entrepreneurship Award, the First Prize of Beijing Science and Technology Award, and the National Natural Science Award (2006, 1/2). He has published over 260 SCI papers (including one in ARA&A, eight in Nature and Science, and two in sub-journals), with over 12,000 citations and an H-factor of 56. Many of his achievements have been extensively introduced in several international classic textbooks.

Host: Dongzi Li