Random triples
| Subject | Object |
|---|---|
| gptkb:Centaurus_X-1 | used for analysis |
| gptkb:Centaurus_X-9 | used for studying composition |
| gptkb:Centaurus_X-31 | used for X-ray spectroscopy studies |
| gptkb:Cygnus_X-1 | used for study |
| gptkb:Centaurus_X-30 | used to study the system |