Figure 2

Figure 2: Mass-radius plot for gravitational wave sources. The horizontal axis is the total mass of a radiating system, and the vertical axis is its size. Typical values from various sources for ground-based and space-based detectors are shown. Lines give order-of-magnitude constraints and relations. Characteristic frequencies are estimated from f ∼ (G ρ∕4π )1∕2. The black-hole and binary lines are described in the text.