FAST Observation Results on Core-Collapsed Globular Cluster M15

Wu, Yuxiao

We present the results from FAST observations of the globular cluster M15. These include updated timing measurements for pulsars M15A through M15H， many of which had not been updated for decades. We confirm the pulsar M15I， which was previously only detected only once. Additionally， we report the discovery of three new pulsars， M15J， M15K， and M15L， with M15K and M15L being long-period isolated pulsars. Furthermore， we provide a polarization analysis of M15C， confirm it is still showing a high degree of linear polarization.