Mathematics – Logic
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aps..may.f1004b&link_type=abstract
American Physical Society, APS/AAPT Joint Meeting, May 2-5, 1996, abstract #F10.04
Mathematics
Logic
Scientific paper
The Laser Interferometer Space Antenna (LISA) was selected in 1994 as a Cornerstone mission of the ESA Horizon 2000 Plus program. Types of sources containing massive black holes (MBHs) that LISA could observe will be discussed. Perhaps the most likely is roughly 5 or 10 solar mass black holes (BHs) orbiting around 10^5 to 10^7 solar mass MBHs in galactic nuclei. Such sources could be observed by LISA out to cosmological distances. Other sources are MBH-MBH binaries formed in several different possible ways. One is by mergers of pregalactic structures containing MBHs in the precursors of rich clusters. Another is the growth of multiple seed BHs in galactic nuclei and the delay of coalescence until several had reached a few hundred solar mass or larger size. A third is the possible formation of a number of roughly 10^5 solar mass MBHs in many galaxies, and the sinking of a few of them to the galactic center during a Hubble time to coalesce with a central MBH. It appears plausible, or even likely, that at least one of the above types of binaries containing MBHs can be detected and studied by LISA.
Bender Peter L.
Hils Dieter
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