Event rate for extreme mass ratio burst signals in the Laser Interferometer Space Antenna band

摘要: Stellar mass compact objects in short-period (P 103 s) orbits about a 104.5-107.5 M☉ massive black hole (MBH) are thought to be significant continuous-wave source of gravitational radiation for the ESA/NASA Laser Interferometer Space Antenna (LISA) wave detector. These extreme ratio inspiral sources began long-period, nearly parabolic that have multiple close encounters with MBH. The emitted during may detectable by LISA as burst if characteristic passage timescale is less than 105 s. Scaling static, spherical model size and Milky Way bulge, we estimate an event rate ~15 yr-1 such signals, signal-to-noise greater 5, originating our Galaxy. When extended include Virgo Cluster galaxies, increases ~18 yr-1. We conclude these steady data streams.