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Table 1.

Estimated radiative flux within 135 kpc from M 31 halo dust grains.

Dust grain size Radiative flux
a (μm) Φ (10−7 erg s−1 cm−2 sr−1)
0.01 9.90
0.06 5.37
0.11 4.41
0.16 3.90
0.21 2.92
0.26 0.81
0.36 0.98

Notes. The estimated radiative flux within 135 kpc from M 31 halo dust grains at Td ≃ 17 K for various dust grain sizes a (first column) is given in the second column.

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