Impact of inter-correlated initial binary parameters on double black hole and neutron star mergers

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Table 2.

Merger rate densities and detection rates for the LIGO/Virgo O2 run sensitivity for three models: M10 (initial binary distributions from Sana et al. 2012), I1 (updated distributions from MD17), and I2 (I1 plus top-heavy IMF for low metallicities from Marks et al. 2012).

Model merger type	Rate density^a (Gpc⁻³ yr⁻¹)	O2 rate^b (yr⁻¹)	O2^c (120 days)
M10
NS–NS	68.2	0.09	0.03
BH–NS	26.7	0.42	0.22
BH–BH	203	111.6	36.7

I1
NS–NS	25.9	0.03	0.01
BH–NS	13.3	0.25	0.08
BH–BH	88.8	48.6	16

I2
NS–NS	24.4	0.03	0.01
BH–NS	16.5	0.38	0.13
BH–BH	181	122.7	40.3

Notes.

^(a)

Local merger rate density within redshift z < 0.1.

^(b)

Detection rate for LIGO O2 observational run.

^(c)

Number of LIGO detections for effective observation time in O2.

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