Different Types of Massive Black Hole Sources for LISA

Details Different Types of Massive Black Hole Sources for LISA Different Types of Massive Black Hole Sources for LISA

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aps..apr.m1104b&link_type=abstract

American Physical Society, APS/AAPT Joint April Meeting, April 18-21, 1998 Columbus, Ohio, abstract #M11.04

Physics

Scientific paper

The Laser Interferometer Space Antenna (LISA) has sufficient sensitivity to see, e.g., the coalescence of two 500 solar mass black holes at a red shift of z=5. If massive black holes (MBHs) form by collisions of stars in dense galactic nuclei to form multiple seed MBHs of this size, such events seem likely to be observable. Roughly 10 solar mass black holes orbiting around MBHs also may well be observed. If MBHs form early enough in pre-galactic structures, mergers of such structures could lead to moderately frequent MBH coalescences. If MBHs don't form by growth from seeds, but instead by sudden collapse of a dense gas cloud or a super-massive star, then the question is whether a bar instability or something similar leads to enough gravitational radiation near the end of the collapse to be observable at frequencies above roughly 0.0001 Hz. Many questions concerning MBH sources for LISA seem likely to be good candidates for theoretical investigations and simulations.

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