Table 2.
Roche radius rR for different types of objects orbiting Sgr A*.
| Jupiter | Sun | Earth | Red dwarf | Brown dwarf | White dwarf | |
|---|---|---|---|---|---|---|
| μ/ M⊙ | 9.55 × 10−4 | 1 | 3.0 × 10−6 | 0.20 | 0.062 | 0.80 |
| R/R⊙ | 0.10 | 1 | 9.17 × 10−3 | 0.22 | 0.078 | 5.58 × 10−3 |
| ρ/ρ⊙ | 0.94 | 1 | 3.91 | 18.8 | 131. | 1.10 × 106 |
| rR/M (a = 0, χ = 0) | 34.9 | 34.2 | 21.9 | 13.3 | 7.31 | 0.28 |
| rR/M (a = 0, χ = 1) | 38.5 | 37.7 | 24.1 | 14.5 | 7.86 | 0.32 |
| rR/M (a = 0.98M, χ = 0) | 34.8 | 34.1 | 21.8 | 13.0 | 6.93 | 0.52 |
| rR/M (a = 0.98M, χ = 1) | 38.4 | 37.6 | 24.0 | 14.3 | 7.57 | 0.52 |
Notes. The first three lines give the mass μ, the mean radius R and the mean mass density ρ, all in solar units. χ = 0 stands for an irrotational body and χ = 1 for a corotating one. See the text for the chosen characteristics of the red dwarf and the brown dwarf.
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