Table 3.
Properties of the 12 selected molecular clumps extracted from our data cube.
| Extrapolations |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ID | Offsets | V0 | Φmax | σnoise | SNRpeak | σmaj | σmin | σv | FCO | SNRtot |
| (arcsec) | (km s−1) | (mJy beam−1) | (mJy beam−1) | (pc) | (pc) | (km s−1) | (Jy km s−1) | |||
| 1 | −5.2, −32.5 | 45.1 ± 0.7 | 55.8 | 5.4 | 10.3 | 6.6 ± 0.4 | 5.7 ± 0.3 | 8.8 ± 0.3 | 2.23 ± 0.09 | 64.4 |
| 2 | 30.8, 2.3 | 145.5 ± 0.4 | 58.4 | 4.5 | 12.9 | 6.0 ± 0.4 | 5.8 ± 0.4 | 6.0 ± 0.3 | 1.48 ± 0.09 | 56.9 |
| 3 | 34.4, −3.8 | 110.9 ± 1.5 | 26.8 | 5.6 | 4.8 | 9.7 ± 0.5 | 7.6 ± 0.4 | 7.8 ± 0.2 | 1.42 ± 0.05 | 49.4 |
| 4 | 29.0, 10.8 | 76.6 ± 0.7 | 34.8 | 3.7 | 9.4 | 8.1 ± 0.4 | 5.9 ± 0.3 | 6.0 ± 0.2 | 1.10 ± 0.06 | 46.4 |
| 5 | 13.1, −22.7 | 112.9 ± 1.2 | 29.9 | 5.1 | 5.9 | 8.7 ± 0.5 | 5.5 ± 0.3 | 6.7 ± 0.2 | 1.15 ± 0.05 | 39.6 |
| 6 | 0.9, −45.9 | −35.8 ± 0.9 | 48.1 | 7.7 | 6.3 | 5.4 ± 0.3 | 5.4 ± 0.3 | 6.5 ± 0.2 | 1.98 ± 0.07 | 36.0 |
| 7 | 19.8, 5.9 | 65.8 ± 1.4 | 20.5 | 4.1 | 5.0 | 9.2 ± 0.7 | 4.3 ± 0.3 | 10.7 ± 0.3 | 0.73 ± 0.03 | 31.1 |
| 8 | 35.7, 0.4 | 171.5 ± 1.5 | 27.7 | 5.0 | 5.5 | 7.3 ± 0.4 | 7.3 ± 0.4 | 8.7 ± 0.3 | 0.75 ± 0.04 | 23.8 |
| 9 | 2.1, −9.9 | 4.3 ± 1.5 | 15.5 | 3.2 | 4.8 | 11.4 ± 0.5 | 7.9 ± 0.3 | 4.4 ± 0.2 | 0.44 ± 0.02 | 22.8 |
| 10 | 7.6, −24.0 | 95.8 ± 1.0 | 21.4 | 5.1 | 4.2 | 10.7 ± 0.6 | 10.6 ± 0.5 | 6.2 ± 0.2 | 0.65 ± 0.03 | 19.0 |
| 11 | −22.3, −33.7 | −167.6 ± 1.4 | 24.0 | 5.7 | 4.2 | 9.9 ± 0.4 | 9.5 ± 0.3 | 3.4 ± 0.2 | 0.57 ± 0.03 | 15.4 |
| 12 | 1.5, 1.7 | −176.5 ± 1.1 | 19.1 | 3.5 | 5.4 | 10.8 ± 0.7 | 7.8 ± 0.5 | 6.1 ± 0.2 | 0.39 ± 0.02 | 15.2 |
Notes. The offsets are calculated according to the optical centre of M 31 at coordinates at J2000 coordinates 00h 42m 44.37s and +41 ° 16′ 8.34″ (Crane et al. 1992). The value V0 is the velocity at the peak flux Φmax and the noise of the associated spectrum is σnoise. The SNRpeak is derived from these. The values σv, Req, and FCO are the extrapolations found through the methodology in Sect. 2.3. The SNRtot is found with FCO and the noise of the associated integrated spectrum.
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