Hello,
For the past couple of weeks, since the official start of LSST, I have been reviewing the results of the ALeRCE stamp classifier (Stamp Classifier Rubin Beta, 20260421). I noticed that some objects tagged as “VS” (variable stars) by the classifier are, in fact, QSOs/AGNs.
For example:
- 313893021597302819
- 313879818771365894
- 170631036948971526
- 313875415046815747 – this one is a known QSO.
Are there ways that the stamp classifier could be improved? It does classify plenty of known variable stars correctly, but it isn’t the most reliable resource if I were searching for valid candidates for new variable stars.