Table 2.
Parameters of star clusters in Leo A.
| ID | α(J2000) | δ(J2000) | R [″] | Rh [″] | F814W | F814W2Rh | CI | CI2Rh | Age (Myr) | Mass (M⊙) |
|---|---|---|---|---|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
| LeoA-C1 | 9:59:16.5 | +30:44:59 | 1.50 | 0.55 | 19.85 | 19.96 | −0.11 | −0.11 | ∼20 | ≳400 |
| LeoA-C2 | 9:59:17.2 | +30:44:08 | 1.25 | 0.7* | 20.82 | 20.79 | −0.24 | −0.23 | ∼20 | ≳150 |
| LeoA-C3 | 9:59:17.9 | +30:45:02 | 1.00 | 0.31 | 21.69 | 21.86 | −0.15 | −0.14 | ≳100 | ≳300 |
| LeoA-C4 | 9:59:26.9 | +30:44:15 | 0.95 | 0.37 | 21.68 | 21.89 | 0.02 | −0.06 | ≳100 | ≳300 |
| LeoA-C5 | 9:59:28.5 | +30:44:50 | 0.90 | 0.34 | 21.78 | 21.85 | −0.14 | −0.15 | ≳100 | ≳300 |
Notes. (1) ID is the cluster identification number; (2) α(J2000) and (3) δ(J2000) are the equatorial coordinates; (4) R is the radius of the cluster in arcsec (in Fig. 2 it is marked with a green circle); (5) Rh is the half-light radius of the cluster derived from the photometric growth curve in arcsec (the asterisk shows the half-light radius of the cluster LeoA-C2 estimated from the star number count); (6) F814W is the magnitude measured through the aperture of radius R; (7) F814W2Rh is the magnitude measured through the aperture of radius 2 × Rh; (8) CI is the colour index F475W − F814W measured through the aperture of radius R; (9) CI2Rh is the colour index F475W − F814W measured through the aperture of radius 2 × Rh; (10) age (Myr) is a rough estimate of the cluster age in Myr; and (11) mass (M⊙) is a rough estimate of the cluster mass in solar masses, M⊙.
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