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Table 2

CO results for the PHANGS galaxies.

Galaxy αMK αpy nGMC Lmin,CO Rmed αMK,in,αpy, in nGMC,in αMK, out, αpy, out nGMC,out
NGC0628 1.85 ± 0.040 1.95 ± 0.030 368 149 254 3.85 0.27 1.80, 1.92 205 1.92, 2.00 163
NGC1637 2.05 ± 0.066 2.06 ± 0.055 202 89 552 2.62 0.39 1.83, 1.74 116 2.56, 1.91 86
NGC2903 1.70 ± 0.023 1.77 ± 0.019 642 134 328 5.41 0.30 1.62, 1.78 346 1.83, 1.95 296
NGC3521 2.15, ±0.035 2.25 ± 0.027 737 397 015 6.35 0.30 2.08, 2.28 476 2.28, 2.40 261
NGC3621 3.00 ± 0.145 2.99 ± 0.131 152 283 582 3.58 0.28 2.88, 2.10 95 3.31, 2.25 57
NGC3627 1.55 ± 0.017 1.65 ± 0.015 879 119 403 4.69 0.28 1.48, 1.66 457 1.65, 1.83 422
NGC5643 2.10 ± 0.043 2.11 ± 0.049 399 179 104 4.50 0.53 1.97, 1.82 244 2.40, 2.00 155
NGC6300 2.31 ± 0.074 2.32 ± 0.067 286 253 731 5.43 0.72 2.04, 1.99 167 3.00, 2.20 119
M33 1.74 ± 0.039 1.95 ± 0.030 449 7000 2.82 0.37 1.51, 1.83 241 2.00, 2.12 208

Notes. PHANGS galaxies observed by Rosolowsky et al. (2021) followed by results from fitting the CO luminosity distribution with the Maschberger & Kroupa (2009) method and powerlaw.py algorithm (Alstott et al. 2014). Second column is overall slope, where the second number is determined with powerlaw.py. Third column is the number of GMCs with a flux greater than the value in Col. 4 expressed in units of K km s−1 pc2. Column 4 is designed to be the true completeness limit as explained in the text. Column 5 gives the median galactocentric radius of the GMCs for that galaxy in kpc and as a fraction of R25. The following two columns provide the inner slope with the two methods and the number of GMCs. The next two columns are the same but for the outer parts. Due to the lower number of clouds, the uncertainties on α are higher when the inner and outer parts are evaluated separately.

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