The gravitational wave signal from diverse populations of double white dwarf binaries in the Galaxy

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Volume 521 (October 2010)

A&A, 521 (2010) A85

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Table 3:

Birth rates of DWDs with various types and different formation channels.
	$\nu$	N	$N/N_{\rm gal}$	$N_{\rm Resolved}$	%
types of WD binaries
He+He	$1.34\times10^{-2}$	$1.06\times10^{8}$	38.41%	19936	59.21%
CO+He	$5.07\times10^{-3}$	$4.11\times10^{7}$	14.89%	12852	38.17%
CO+CO	$1.15\times10^{-2}$	$1.08\times10^{8}$	39.13%	586	1.74%
ONeMg	$2.13\times10^{-3}$	$2.09\times10^{7}$	7.57%	296	0.88%
formation channels
RLOF+CE	$9.86\times10^{-3}$	$8.27\times10^{7}$	29.96%	1061	3.15%
CE+CE	$2.12\times10^{-2}$	$1.84\times10^{8}$	66.67%	32609	96.85%
other channels	$1.04\times10^{-3}$	$9.3\times10^{6}$	3.37%	0	0
Total	$3.21\times10^{-2}$	$2.76\times 10^{8}$		33670

Notes. $\nu$ = current birth rate, N = total number, % = percentage of the type of DWDs making up the total resolved DWDs in the Galaxy, $N_{\rm Resolved}$ = number of resolved DWDs. We take the thin disc model with Z=0.02.

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