Table 2.
Literature compilation of slopes from resolved molecular KS relations.
| Reference | Index (N) | Scale | αCO | Fitting method |
|---|---|---|---|---|
| (M⊙ pc−2/(K km s−1)) | ||||
| VERTICO | 0.97 ± 0.07 | 720 pc | 4.35 | Least Trimmed Squares |
| Querejeta et al. (2021) | 0.97 ± 0.06 (a) | ∼1 − 2 kpc | 4.35 × Z′−1.6 | Bisector Ordinary Least Squares (OLS) |
| Pessa et al. (2021) | 1.06 ± 0.01 | 100 pc | 4.35 × Z′−1.6 | OLS |
| Sánchez et al. (2021) | 0.95 ± 0.21 | ∼kpc | 4.3 | OLS |
| Ellison et al. (2021a) | 0.86 ± 0.01 | ∼kpc | 4.3 | Orthogonal Distance Regression (ODR) |
| Morselli et al. (2020) | 0.80 ± 0.12 | 500 pc | 4.3 | OLS |
| Lin et al. (2019) | 1.05 ± 0.01 | ∼kpc | 4.3 | ODR |
| Usero et al. (2015) | 1.01 ± 0.08 | ∼1 − 2 kpc | 4.4 | Total Least Squares |
| Leroy et al. (2013) | 1.00 ± 0.15 | ∼kpc | 4.35 | Monte Carlo fitting |
| Schruba et al. (2011) | 1.0 ± 0.1 | ∼0.2–2 kpc | 4.35 | Bisector OLS |
| Genzel et al. (2010) | 1.17 ± 0.09 | > kpc | 4.35 (b) | Not specified |
| Daddi et al. (2010) | 1.31 ± 0.09 | > kpc | 3.6 (c) | Not specified |
| Blanc et al. (2009) | 0.82 ± 0.05 | ∼750 pc | 6.0 (d) | Monte Carlo fitting |
| Bigiel et al. (2008) | 1.0 ± 0.02 | ∼750 pc | 4.35 | Bisector OLS |
| Kennicutt (2007) | 1.37 ± 0.03 | ∼500 pc | 6.0 (d) | Bivariate Least Squares |
Notes. The αCO factors correspond to the CO (1-0) transition.
Querejeta et al. (2021) report a range of values between 0.90 − 1.43 for the slopes, which is due to the choice of αCO conversion factor.
Genzel et al. (2010) employ a conversion factor of 4.35 for star-forming galaxies (SFGs) and 1.36 for submillimeter galaxies (SMGs).
Daddi et al. (2010) use a conversion factor of 3.6 for z = 0.5 − 2.5 normal galaxies, 4.6 for local spirals, and 0.8 for local ULIRGs and distant SMGs.
Blanc et al. (2009) and Kennicutt (2007) adopt the conversion factor derived in Bloemen et al. (1986), with XCO = 2.8 × 1020 cm−2 (K km s−1)−1.
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.