Table 2
Dust and free-free parameters for each envelope around sources in Sgr B2(M).
Source | Tdust (K) | NH,dust (cm−2) | βdust | γdust (%) | Te (K) | EM (pc cm−6) | γff (%) |
---|---|---|---|---|---|---|---|
Envelope | |||||||
A01 | 61 ± 19 | ![]() |
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– | – | – |
A02 | 77 ± 38 | ![]() |
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– | – | – |
A03 | 55 ± 10 | ![]() |
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– | – | – |
A04 | 71 ± 53 | ![]() |
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– | – | – |
A05 | 71 ± 47 | ![]() |
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– | – | – |
A06 | 81 ± 30 | ![]() |
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– | – | – |
A07 | 96 ± 128 | ![]() |
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A08 | 88 ± 43 | ![]() |
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– | – | – |
A09 | 114 ± 84 | ![]() |
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A10(*) | 54 ± 41 | ![]() |
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– | – | – | – |
A11 | 51 ± 17 | ![]() |
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– | – | – |
A12 | 71 ± 37 | ![]() |
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– | – | – |
A13 | 72 ± 38 | ![]() |
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– | – | – |
A14 | 72 ± 36 | ![]() |
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– | – | – |
A15 | 67 ± 17 | ![]() |
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– | – | – |
A16 | 65 ± 15 | ![]() |
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– | – | – |
A17 | 55 ± 23 | ![]() |
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– | – | – |
A18(*) | 83 ± 6 | ![]() |
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– | – | – | – |
A19 | 46 ± 0 | ![]() |
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– | – | – |
A20(*) | 64 ± 19 | ![]() |
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– | – | – | – |
A21 | 86 ± 10 | ![]() |
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– | – | – |
A22 | 60 ± 7 | ![]() |
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– | – | – |
A23 | 70 ± 10 | ![]() |
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– | – | – |
A24 | 50 ± 87 | ![]() |
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A25(*) | 53 ± 51 | ![]() |
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– | – | – | – |
A26 | 162 ± 45 | ![]() |
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A27(*) | 70 ± 14 | ![]() |
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– | – | – | – |
Notes. Exponents are given in parentheses, e.g., 1.4(16) = 1.4 × 1016. The errors of the continuum parameters are indicated by subscript (left) and superscript (right) values, e.g., is the lower limit of 1.1 × 10+25 − 3.1 × 10+00 and 1.1 × 10+25 + 2.2 × 10+00 is the upper limit of the corresponding hydrogen column density of 1.1 × 10+25. For sources marked with an asterisk (*), we could not derive a self-consistent description of the continuum of the corresponding core spectrum. Here Tdust indicates the dust temperature in K, NH,dust the hydrogen column density in cm−2, and βdust the power-law index of the dust emissivity. We use temperature units for the fitting. Therefore, the spectral indices for flux units α is given by α = β + 2. Additionally, γdust describes the contribution of dust to the total continuum of the corresponding core spectrum in %, Te the electron temperature in K, EM the emission measure in pc cm−6, and γff the free-free contribution to the total continuum in %.
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