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SUMMARY:[Seminar] Axion-like Cloud and the Gravitational Wave Effects
DTSTART;VALUE=DATE-TIME:20210702T070000Z
DTEND;VALUE=DATE-TIME:20210702T090000Z
DTSTAMP;VALUE=DATE-TIME:20260418T010939Z
UID:indico-event-97@indico.itp.ac.cn
DESCRIPTION:Title: Axion-like Cloud and the Gravitational Wave Effects\n\n
 Speaker: Yun-Long Zhang (NAOC)\n\nAbstract: The axion-like objects such as
  axion mini-clusters and axion clouds around spinning black holes induce p
 arametric resonances of electromagnetic waves through the axion-photon int
 eraction. In particular\, it has been known that the resonances from the a
 xion with the mass around mueV may explain the observed fast radio bursts 
 (FRBs). Here we argue that similar bursts of high frequency gravitational 
 waves\, which we call the fast gravitational wave bursts (FGBs)\, are gene
 rated from axion clumps with the presence of gravitational Chern-Simons co
 upling. The typical frequency is half of the axion mass\, which in general
  can range from mHz to GHz. We also discuss the secondary gravitational wa
 ve production associated with FRB\, as well as the possible host objects o
 f the axion clouds. Future detections of FGBs together with the observed F
 RBs are expected to provide more evidence for the axion.\n\nhttps://indico
 .itp.ac.cn/event/97/
LOCATION:ITP South Building Room 6620
URL:https://indico.itp.ac.cn/event/97/
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