M. Tinto, J. C. N. de Araujo, O. D. Aguiar, M. E. S. Alves
We analyze the sensitivities of a geostationary gravitational wave interferometer mission operating in the sub-Hertz band. Because of its smaller armlength, our proposed Earth-orbiting detector will be less sensitive, by a factor of about seventy, than the Laser Interferometer Space Antenna (LISA) mission in the lower part of its accessible frequency band ($10^{-4} - 2 \times 10^{-2}$ Hz), while it will outperform it by the same factor in the higher-part of it ($2 \times 10^{-2} - 10$ Hz). By being able to probe the higher region of the sub-Hertz band with higher sensitivity, our proposed interferometer will observe a larger number of super-massive black holes (SMBHs) with masses smaller than $\sim 10^{6}$ M$_{\odot}$, thereby probing more accurately the astrophysical scenarios that account for their formation.
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http://arxiv.org/abs/1112.1565
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