Detection of hyper-activity of FRB 20240114A with FAST
ATel #16505; Junshuo Zhang(NAOC), Qin Wu(NJU), Shuo Cao(YNAO), Yuhao Zhu(NAOC), Yongkun Zhang(NAOC), Jiarui Niu(NAOC), Jintao Xie(Zhejiang Lab), Dejiang Zhou(NAOC), Tiancong Wang(BNU), Weiwei Zhu(NAOC), Bing Zhang(UNLV), Pei Wang(NAOC), Chenhui Niu(CCNU), Di Li(NAOC), Jinlin Han(NAOC), Kejia Lee(PKU & NAOC), Fayin Wang(NJU), He Gao(BNU), Yi Feng(Zhejiang Lab), Jinchen Jiang(NAOC), Weicong Jing(NAOC), Ye Li(PMO), Wanjin Lu (NAOC), Rui Luo (GZHU), Fen Lyu(AQNU), Weiyang Wang(UCAS), Heng Xu(NAOC), Yuanpei Yang(YNU), Wenfei Yu(SHAO), Chunfeng Zhang(NAOC) and FAST FRB Key Science Project
on 5 Mar 2024; 15:04 UT
Credential Certification: Pei Wang (wangpei@nao.cas.cn)
Subjects: Radio, Transient, Fast Radio Burst
We report the detection of a burst storm from the repeating FRB 20240114A, during a 30-minute observation by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) between UTC2024-03-05 04:31:00 and UTC2024-03-05 05:01:00, implying the burst rate of ~500/h with fluence threshold of 0.015 Jy ms. The burst rate increased by a factor of 14 from our previous observation on 2024-02-25.
Following the discovery of FRB 20240114A by CHIME/FRB (ATel #16420), the FAST FRB key science project team monitored the source using the position obtained by MeerKAT (ATel #16446) on a weekly cadence. Our observation was taken with a sampling time of 98.304 microsecond for 8192 frequency channels in the FAST observing band of 1.0-1.5 GHz. In light of the source's hyper-activity, we encourage multi-wavelength follow-ups.
