Table 2
Dust properties derived from the infrared data for the M31 observed positions.
| D14 | V14 | |||||||||
|
|
||||||||||
| Pos | USPIRE350 | UM160 |
|
|
|
|
Mdust | M∗ | SFR | τv |
| (K) | (K) | (K) | (K) | (103M⊙) | (107M⊙) | (M⊙/Myr) | ||||
|
|
||||||||||
| I | 1.53 ± 0.21 | 2.1 ± 0.5 | 19.3 | 20.3 | 20. | 42. | 2.90 | 3.2 | 3.3 | 0.52 |
| I-B | 1.52 ± 0.02 | 1.3 ± 0.3 | 19.3 | 18.7 | 20. | 57. | 2.86 | 2.5 | 2.8 | – |
| 2d-a | 2.73 ± 0.37 | 2.6 ± 0.5 | 21.3 | 21.1 | 23. | 34. | 0.98 | 3.2 | 13.4 | – |
| 2d-b | 1.78 ± 0.15 | 2.6 ± 0.5 | 19.8 | 21.1 | 23. | 34. | 0.98 | 3.2 | 13.4 | – |
| 2c-a | 2.07 ± 0.40 | 3.1 ± 0.4 | 20.3 | 21.8 | 23. | – | 1.49 | 3.5 | 16.1 | 1.89 |
Notes. In the second and third columns, we provide the mean starlight heating rates provided by Draine et al. (2014, D14) for two different resolutions (24.̋9 and 39′′) at the pointing positions. In the fourth and fifth columns, we present cold dust temperatures derived from these mean starlight measurements. In the sixth through tenth columns, we provide cold and warm dust temperatures, dust and stellar masses, star formation rates and dust optical depths computed by Viaene et al. (2014, V14) at these positions in 36′′ pixels.
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