Table A.1
Parameters of circular regions of interest, including their short names, equatorial (RA, Dec) and Galactic (l, b) coordinates of their centers, and radii (in arcsec).
| Region | RA,◦ | Dec,◦ | l,◦ | b,◦ | r, “ |
|---|---|---|---|---|---|
| Arches | 266.460 | −28.822 | 0.123 | 0.018 | 30 |
| Background | 266.628 | −28.801 | 0.217 | −0.097 | 90 |
| G0.13-0.11 (nt) | 266.592 | −28.882 | 0.132 | −0.112 | 60 |
| Sgr A | 266.566 | −28.891 | 0.112 | −0.097 | 270 |
| Sgr A (re) | 266.550 | −28.891 | 0.105 | −0.085 | 60 |
| Sgr A (bg) | 266.579 | −28.849 | 0.154 | −0.085 | 60 |
Notes. In most of the analysis procedures, regions G0.13-0.11 (nt) and Sgr A (re) are excluded from a bigger Sgr A region encompassing them unless the opposite is explicitly stated.
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