Open Access

Table B.1

Properties of the Local Bubble

Property This work Z+22 O+24 Unit
Effective Radius 212.3 ± 1.0stat 165 ± 6 170a pc
Mass 6.2 ± 0.7sys ± 0.07stat 14-6.2+6.5Mathematical equation: $14_{-6.2}^{+6.5}$ 6.0 ± 0.7b 105 M
Hydrogen number density 0.50 ± 0.06sys ± 0.006stat 2.71-1.02+1.57Mathematical equation: $2.71_{-1.02}^{+1.57}$ 0.61c cm−3
Momentum (3.0 ± 1.7sys ± 0.05stat)d ×(Myr/tage) 1.0-0.4+0.4Mathematical equation: $1.0_{-0.4}^{+0.4}$ 107 M km s−1
Minor-to-major-ratio 0.469 ± 0.007
Semi-major-to-major-ratio 0.562 ± 0.011
Pitch angle (major axis) −19.0 ± 1.0
Polar direction (major axis) 0.665 ± 0.011
Pitch angle (minor axis) –66.1 ± 2.7
Polar direction (minor axis) 0.607 ± 0.022

(a) Median peak distance (b) Mass enclosed within shell (c) Median peak density (d) Bias corrected (see Appendix C.1)

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