Table 2
Telescope and instrument parameters used for S/N calculations.
| Parameter | JWST(1) | E-ELT(2) |
|
|
||
| Aperture dt [m] | 6.5 | 39.3 |
| Detection efficiency q | 0.15 | 0.5 |
| Emitting area ATelescope [m2] | 240 | 1104.42 |
| Temperature TTelescope [K] | 45 | 285 |
| Emissivity ϵ | 0.15 | 0.14 |
| Parameter | NIRCam(1) | MIRI(1) | EPICS(3) | METIS(4) |
|
|
||||
| ps [mas px-1] | 65 | 110 | 2.3 | 17.2 |
| dc [e− px-1] | 0.01 | 0.03 | 0.5 | 2000 |
Notes.The top panel shows the telescope parameters used in this paper, whereas the second panel shows the instrument parameters.
Reference. (1) Kaltenegger & Traub (2009); Deming et al. (2009); Belu et al. (2011); (2) Liske (2010); (3) Kasper et al. (2010); (4) Kendrew et al. (2010).
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