Open Access
Table 1.
Coordinates and systemic redshift of the two nuclei of Arp 220 from Perna et al. (2024).
| W nucleus | E nucleus | |
|---|---|---|
| RA (J2000) | 15:34:57.224 | 15:34:57.294 |
| Dec (J2000) | +23:30:11.515 | +23:30:11.353 |
| redshift (gas) | 0.01774 ± 0.00001 | 0.01840 ± 0.00001 |
| redshift (stars) | 0.0179 ± 0.0003 | 0.0183 ± 0.0002 |
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