Free Access

Table 3

Dust emission, ionized gas, and molecular properties of the ALMA continuum sources in Sgr B2.

Dust emission Ionized gas Molecular content



M d + g n H2 N H2 n e M i i lines L lines Ll/Lc + l
ID (M) (108 cm-3) (1024 cm-2) (cm-3) (M) (s-1) per GHz (0.1L) (%)

Sgr B2(N)

AN01 8668–4083 20.94–9.86 130.9–61.6 4.8 × 104 0.13 1.9 × 1048 74.8 (6.9) 92.61 22.1
AN02 623–294 7.77–3.66 48.6–22.9 ... ... ... 101.6 (6.8) 11.77 33.7
AN03 470–221 4.83–2.27 30.2–14.2 4.4 × 104 0.013 1.7 × 1047 92.0 (4.9) 10.81 37.8
AN04 419–198 3.59–1.69 22.4–10.6 ... ... ... 100.3 (7.6) 7.98 33.6
AN05 346–163 2.47–1.16 15.4–7.3 ... ... ... 99.2 (24.1) 3.12 19.4
AN06 345–163 2.16–1.02 13.5–6.4 ... ... ... 100.9 (29.4) 3.60 22.0
AN07 104–49 2.70–1.27 16.8–7.9 ... ... ... 52.2 (24.9) 0.48 11.3
AN08 105–49 1.51–0.71 9.5–4.5 ... ... ... 65.8 (23.9) 0.90 19.1
AN09 141–66 0.75–0.35 4.7–2.2 ... ... ... 10.4 (8.7) 0.02 0.4
AN10 57–27 0.71–0.34 4.5–2.1 7.7 × 104 0.017 4.1 × 1047 73.3 (11.6) 1.39 33.7
AN11 80–38 0.57–0.27 3.6–1.7 ... ... ... 8.1 (11.1) 0.01 0.3
AN12 140–66 0.60–0.28 3.8–1.8 ... ... ... 32.9 (33.2) 0.07 1.4
AN13 353–166 0.44–0.21 2.8–1.3 ... ... ... 48.2 (42.3) 0.36 3.0
AN14 167–79 0.39–0.18 2.4–1.1 ... ... ... 18.1 (10.6) 0.11 1.9
AN15 50–23 0.40–0.19 2.5–1.2 ... ... ... 10.0 (9.9) 0.01 0.4
AN16 159–75 0.32–0.15 2.0–0.94 ... ... ... 24.9 (15.4) 0.14 2.7
AN17 26–12 0.47–0.22 2.9–1.4 ... ... ... 60.0 (26.2) 0.36 26.8
AN18 122–57 0.34–0.16 2.1–1.0 ... ... ... 22.3 (13.0) 0.11 2.7
AN19 40–19 0.30–0.14 1.8–0.87 ... ... ... 17.8 (11.9) 0.02 1.5
AN20 12–6 0.31–0.14 1.9–0.90 5.8 × 104 0.0043 7.6 × 1046 10.1 (5.5) 0.01 3.5

Sgr B2(M)

AM01 1544–727 23.59–11.11 147.4–69.4 4.4 × 105 0.072 9.8 × 1048 66.2 (32.0) 5.90 7.6
AM02 1731–815 21.92–10.32 137.0–64.5 3.0 × 105 0.064 5.9 × 1048 69.5 (37.0) 7.01 8.7
AM03 608–286 6.33–2.98 39.5–18.6 ... ... ... 75.7 (22.2) 4.21 15.5
AM04 388–183 5.42–2.55 33.9–15.9 9.4 × 104 0.018 5.2 × 1047 29.6 (7.3) 1.48 8.8
AM05 406–191 5.87–2.77 36.7–17.3 ... ... ... 75.7 (38.9) 2.60 14.6
AM06 318–150 4.60–2.17 28.8–13.5 ... ... ... 40.5 (9.1) 2.28 16.0
AM07 268–126 4.92–2.32 30.8–14.5 5.2 × 104 0.0065 1.1 × 1047 44.1 (8.4) 1.41 12.1
AM08 99–46 4.15–1.96 26.0–12.2 3.0 × 105 0.011 1.0 × 1048 20.7 (10.0) 0.47 8.5
AM09 232–109 3.35–1.58 20.9–9.9 ... ... ... 40.4 (10.3) 1.29 13.1
AM10 340–160 1.46–0.69 9.2–4.3 ... ... ... 35.3 (8.5) 1.32 9.5
AM11 178–84 2.58–1.21 16.1–7.6 ... ... ... 5.6 (5.3) 0.05 0.7
AM12 185–87 1.44–0.68 9.0–4.2 ... ... ... 15.6 (8.8) 0.62 8.5
AM13 186–88 1.12–0.53 7.0–3.3 ... ... ... 26.2 (10.5) 0.55 7.5
AM14 101–48 1.30–0.61 8.1–3.8 ... ... ... 19.4 (7.9) 0.73 16.1
AM15 11–5 0.18–0.08 1.1–0.52 1.6 × 105 0.023 1.1 × 1048 10.5 (6.9) 0.18 8.9
AM16 83–39 0.28–0.13 1.7–0.82 6.6 × 104 0.10 2.1 × 1048 2.9 (2.9) 0.06 1.1
AM17 95–45 0.31–0.15 1.9–0.91 4.0 × 104 0.067 8.2 × 1047 5.4 (4.6) 0.04 1.0
AM18 46–21 0.45–0.21 2.8–1.3 ... ... ... 3.3 (3.4) 0.01 0.9
AM19 62–29 0.39–0.19 2.5–1.2 ... ... ... 3.0 (4.0) 0.02 0.8
AM20 54–26 0.28–0.13 1.7–0.81 ... ... ... 3.5 (2.9) 0.02 1.1
AM21 22–10 0.32–0.15 2.0–0.93 ... ... ... 1.9 (2.0) 0.01 0.2
AM22 25–12 0.30–0.14 1.9–0.88 ... ... ... 3.7 (3.1) 0.01 0.9
AM23 48–22 0.23–0.11 1.5–0.69 ... ... ... 3.4 (4.1) 0.02 1.3
AM24 ... ... ... 1.9 × 105 0.0083 4.8 × 1047 6.1 (3.6) 0.03 6.2
AM25 18–9 0.25–0.12 1.6–0.75 ... ... ... 1.4 (1.6) 0.01 0.8
AM26 39–18 0.22–0.10 1.4–0.65 ... ... ... 6.5 (4.0) 0.08 6.4
AM27 16–8 0.22–0.10 1.3–0.63 ... ... ... 2.7 (2.5) 0.01 0.9

Notes. The symbol “...” denotes if a source is not associated with VLA 40 GHz emission and therefore the physical parameters of an Hii region cannot be derived. For source AM24 in Sgr B2(M), all the ALMA continuum flux at 242 GHz results seems to be originated by ionized gas, the physical parameters of the dust content cannot be derived.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.