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Table 2

Continuum source parameters.

Source α(J2000) δ(J2000) υLSR Tc RGC D Flight Id tobs(a)
[h:m:s] [° : ′ : ′′] [km s−1] [K] [kpc] [kpc] [mins]
Sgr B2(M) 17:47:20.49 −28:23:06.00 65.2(0.6) 14.6 0.1 8.3 2019/06/10(F579) 51
2019/06/11(F580) 101
W51E 19:23:43.90 +14:30:30.50 63.0(1.6) 9.4 6.3 5.4 2019/12/11(F646) 90
G34.26+0.15 18:53:18.49 +01:14:58.70 58.0(0.7) 8.6 7.0 1.6 2020/03/07(F669) 126
2020/03/11(F671) 85
W49(N) 19:10:13.20 +09:06:11.88 11.8(0.4) 13.8 7.8 11.4 2020/03/05(F667) 80
2020/03/10(F670) 55
2020/03/12(F673) 135
2020/03/13(F674) 57
W3(OH) 02:27:04.10 +61:52:22.00 −46.0(0.2) 5.3 10.0 2.0 2018/11/21(F529) 117
2018/12/04(F533) 53

Notes. Columns are from left to right, the source designation, equatorial coordinates, LSR velocity, signal band continuum brightness temperaturederived by means of a DSB calibration, galactocentric distance, heliocentric distance, flight id, and flight leg duration. (a) The observing leg time (tobs) refers to thetotal duration of time for which the source was observed. This includes the total (on+off) observing time as well as the overheads, which in total is typically a factor of two larger than the (on+off) time.

References. The heliocentric distances: Sgr B2(M): Reid et al. (2014); W51E: Sato et al. (2010); G34.26+0.15: Zhang et al. (2009); W49(N): Zhang et al. (2013); W3(OH): Xu et al. (2006);

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