Table 1
Basic properties for all photometric bands used in this work, as well as corresponding source counts in our master catalogue for both the Orion A region and the control field.
| Band |  |
FWHMa,b | Orion A | CF |
|---|---|---|---|---|
| (μm) | (μm) | (#) | (#) | |
| z | 0.87 | 0.10 | 291 259 | 54 730 |
| y | 0.96 | 0.06 | 233 128 | 40 099 |
| J | 1.24 | 0.22 | 568 116 | 84 686 |
| H | 1.66 | 0.26 | 743 352 | 83 192 |
| KS | 2.16 | 0.28 | 636 388 | 70 750 |
 |
3.51 | 0.74 | 192 934 | 30 853 |
 |
4.44 | 1.01 | 125 951 | 25 567 |
| I3 | 5.63 | 1.39 | 21 126 | – |
| I4 | 7.59 | 2.83 | 19 324 | – |
| M1 | 23.21 | 5.32 | 5914 | – |
Notes. (a) All parameters for the photometric passbands were obtained via the Spanish Virtual Observatory (http://svo2.cab. inta-csic.es/theory/fps3/index.php). (b)FWHM of the filter bandpass. (c)Spitzer photometry for the control field was obtained via linear transformations from WISE (Eqs. (1) and (2)).
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