| |
 |
| Paper: |
Extreme-mass-ratio Bursts from the Galactic Centre |
| Volume: |
467, 9th LISA Symposium |
| Page: |
185 |
| Authors: |
Berry, C. P. L.; Gair, J. R. |
| Abstract: |
An extreme-mass-ratio burst (EMRB) is a gravitational wave signal emitted when a compact object passes through periapsis on a highly eccentric orbit about a much more massive body, in our case a stellar mass object about the 4.31×106 M☉ massive black hole (MBH) in the Galactic Centre. We investigate how EMRBs could constrain the parameters of the Galaxy's MBH. EMRBs should be detectable if the periapsis is rp < 65rg for a μ = 10M☉ orbiting object, where rg = GM•/c2 is the gravitational radius. The signal-to-noise ratio ρ scales like log(ρ) = -2.7 log(rp/rg) + log(μ/M☉) + 4.9. For periapses smaller than ∼ 10rg, EMRBs can be informative, providing good constraints on both the MBH's mass and spin. |
|
|
|
|
|
