摘要
The Five-hundred-meter Aperture Spherical radio Telescope(FAST)has discovered more than 650 new pulsars,which account for 20%of our known Galactic pulsar population.In this paper,we estimate the prospect of a pulsar survey with a radio telescope array to be planned—the FAST Array(FASTA),consists of six“FAST-type”telescopes.Such a sensitive radio telescope array would be a powerful instrument in probing the pulsar population deep into our Galaxy as well as in nearby galaxies.We simulate the FASTA pulsar discovery prospects with different Galactic pulsar population models and instrumental parameter combinations.We find that FASTA could detect tens of thousands of canonical pulsars and well-over thousands of millisecond pulsars.We also estimate the potential yield if the FASTA is used to search for pulsars from the nearby spiral galaxy M31,and find that it would probably discover around a hundred new radio pulsars.
基金
supported by the National Natural Science Foundation of China(NSFC)grant No.12203070
the National SKA Program of China No.2020SKA0120200
supported by the NSFC grant Nos.12041303 and 11873067
the CAS-MPG LEGACY project
supported by the Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS
Project funded by China Postdoctoral Science Foundation No.2021M703237
supported by NSFC 12133004
the National SKA Program of China No.2020SKA0120101
the Science and Technology Program of Guangzhou(No.202102010466)
the Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province,China.
