Table 4
X-ray properties of A1307.
| South | North | |
|---|---|---|
| M500 (·1014 M⊙) | 2.2 ± 0.3 | 2.8 ± 0.4 |
| M𝑔as (·1013 M⊙) | 3.0 ± 0.15 | 4.5 ± 0.2 |
| f𝑔as | 14 ± 2 % | 16 ± 2 % |
| r500 (arcmin) | 9.8 ± 0.5 | 10.6 ± 0.5 |
| Lx (·1044 erg s−1) | 0.62 ± 0.02 | 0.74 ± 0.02 |
| M500(LX) (·1014 M⊙) | 2.3 ± 0.05 | 2.6 ± 0.05 |
| Tx (ke V) | 4.3 ± 0.3 | 4.2 ± 0.3 |
 (·10−3 cm−3) |
6.3, 1.1 | – |
 |
1.73, 3.80 | – |
| β(★) | 1.04, 0.58 | – |
| ne0 (·10−3 cm−3) | 7.84 | 4.32 |
| rc | 0.925 | 1.98 |
| β | 0.547 | 0.605 |
| K0 (keV cm2) | 136 ± 25 | 136 ± 25 |
Notes. Asterisk in column 1 indicates parameters obtained by fitting the double β-model. The masses M500 and M𝑔as are the masses for an entire, spherically symmetric cluster with the profile of the named hemisphere. For details of the X-ray temperature see the profiles in Fig. 8 for A1307 and the temperature profile in OTA13 for A76. K0 is the central entropy of the intracluster medium.
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