Table 4. Open in new tab For the three...

M_{vir, z = 0}	〈r〉	〈r〉/R_vir	n_{cor, min}	M_{cor, min}	f_{b, min}	n_{cor, max}
0.95	76	0.82	7 × 10⁻⁴	6.8 × 10¹⁰	0.18	7 × 10⁻⁴
1.25	72	0.76	8 × 10⁻⁴	7.3 × 10¹⁰	0.17	9 × 10⁻⁴
1.6	69	0.74	8 × 10⁻⁴	7.2 × 10¹⁰	0.15	10⁻³

M_{vir, z = 0}	〈r〉	〈r〉/R_vir	n_{cor, min}	M_{cor, min}	f_{b, min}	n_{cor, max}
0.95	76	0.82	7 × 10⁻⁴	6.8 × 10¹⁰	0.18	7 × 10⁻⁴
1.25	72	0.76	8 × 10⁻⁴	7.3 × 10¹⁰	0.17	9 × 10⁻⁴
1.6	69	0.74	8 × 10⁻⁴	7.2 × 10¹⁰	0.15	10⁻³

Table 4.

For the three possible choices of the present-day MW virial mass, we show our derived constraints on the corona.

M_{vir, z = 0}	〈r〉	〈r〉/R_vir	n_{cor, min}	M_{cor, min}	f_{b, min}	n_{cor, max}
(10¹² M_⊙)	(kpc)		(cm⁻³)	(M_⊙)		(cm⁻³)
0.95	76	0.82	7 × 10⁻⁴	6.8 × 10¹⁰	0.18	7 × 10⁻⁴
1.25	72	0.76	8 × 10⁻⁴	7.3 × 10¹⁰	0.17	9 × 10⁻⁴
1.6	69	0.74	8 × 10⁻⁴	7.2 × 10¹⁰	0.15	10⁻³

M_{vir, z = 0}	〈r〉	〈r〉/R_vir	n_{cor, min}	M_{cor, min}	f_{b, min}	n_{cor, max}
(10¹² M_⊙)	(kpc)		(cm⁻³)	(M_⊙)		(cm⁻³)
0.95	76	0.82	7 × 10⁻⁴	6.8 × 10¹⁰	0.18	7 × 10⁻⁴
1.25	72	0.76	8 × 10⁻⁴	7.3 × 10¹⁰	0.17	9 × 10⁻⁴
1.6	69	0.74	8 × 10⁻⁴	7.2 × 10¹⁰	0.15	10⁻³

Notes. The second column is Draco’s average galactocentric distance 〈r〉 during first infall; this average is weighted by the mass-loss (see equation 18). The third column is this distance as a fraction of the virial radius at the time of pericentre. The following columns are the minimum coronal density n_{cor, min} required for complete stripping of Draco’s ISM, and the corresponding minimum coronal mass and baryon fraction based on the fitted isothermal density profile (see Section 3.1.2). The rightmost column is the upper limit on the coronal density n_{cor, max} derived from the maximum baryon fraction f_{b, max} = f_b = 0.18. The row of our fiducial virial mass is highlighted in bold

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