Table 1
12CO 2–1 flux densities and molecular masses.
| Positiona (J2000) | α: 03:36:39.076 (±0''2) |
| δ: –20:54:07.01 (±0''1) | |
| Peak flux densityb | 270 ± 16 (mJy beam-1) |
| Fluxc | |
| (central beam) | 20 ± 0.05 (Jy km s-1) |
| (whole map) | 169 ± 0.5 (Jy km s-1) |
|
|
|
| Molecular massd | |
| (central beam) | 1.7 × 107 M⊙ |
| (whole map) | 1.5 × 108 M⊙ |
Notes. The high-resolution 12CO 2−1 data. Listed errors are 1σ rms.
The position of the 12CO 2−1 integrated intensity. The peak TB is at α: 03:36:39.073 δ: –20:54:07.08 at Vc = 1734 km s-1.
The 12CO luminosity L(12CO) = 18.5 × D2 × (θ)2 × I(12CO) K km s-1 pc2 (where D is in Mpc, θ in ′′ and I(12CO) in K km s-1) and M(H2) = 3.47L(12CO) for N(H2)/I(12CO) = 2.5 × 1020 cm-2). The conversion factor has been calibrated for 12CO 1−0 emission – thus, if the 12CO is subthermally excited, the H2 mass estimated from the 2−1 line should be corrected upward. From our IRAM 12CO 2−1 and 1−0 data we estimate that the 2−1/1−0 line ratio to 0.7 – and hence we corrected masses upward by 30%.
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