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Table 2
Comparison of the physical properties of G1 and G2.
| G1 | G2 | |
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|
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| Stellar mass M ⋆ | 2.1 × 109 M⊙ | 6.8 × 108 M⊙ |
| Gas mass Mgas | 5.0 × 108 M⊙ | 3.0 × 108 M⊙ |
| M ⋆ /Mgas | ~4 | ~2 |
| Dust mass Mdust | 8.7 × 106 M⊙ | 6.3 × 106 M⊙ |
| SFR | 0.3 M⊙/yr | 1.1 M⊙/yr |
Notes. From the SFR, and assuming a Salpeter IMF, we can derive intrinsic Lyα luminosities of our galaxies: L(Lyα)G1 = 3.3 × 1041 erg s-1 and L(Lyα)G2 = 1.2 × 1042 erg s-1.
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