Welcome

This tool will guide you through a structured evaluation of PyAutoLens model fits and the segmentation maps used as input. For each object you will see the modeling outputs alongside the RGB cutout, segmentation map, and Einstein radius.

Progress is saved automatically. You can close this page at any time and resume where you left off by logging in with your participant ID.

Enter your participant ID to begin.

Lens model evaluation

You will evaluate PyAutoLens model fits and the segmentation maps used as input. For each object you will see the modeling outputs, the RGB cutout, segmentation map, and Einstein radius.


Criteria for Success

1. You have high confidence that the object is a genuine strong gravitational lens (otherwise classify as Unsure If Lens).
2. The system is not a double source-plane lens (otherwise classify as Double Source Plane Lens (DSPL)).
3. The system contains only one lens galaxy within its Einstein radius (otherwise classify as Multi Galaxy Lens (MGL)).
4. The lens model provides an accurate and reliable measurement of the Einstein radius suitable for publication in a peer-reviewed scientific article (otherwise classify as Failure).
5. The critical curve morphology and source reconstruction are physically plausible (otherwise classify as Failure).
6. If all criteria above are satisfied, classify the system as Success.


Failure classifications

If you select Failure, you will be asked where in the fitting pipeline things first went wrong. If the segmentation/masking is incorrect, everything downstream also fails, so always pick the earliest failure.

a
Segmentation / Masking
b
Lens Light Subtraction
c
Source Reconstruction

Use Back to revise, Jump to to navigate by number, and Criteria for examples and full evaluation criteria.

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Segmentation
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Einstein radius
-- arcsec
Modeling output
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Classify this output
Select the earliest step that failed. Downstream stages are assumed to fail as well.
Press Enter to continue

Evaluation complete

All objects evaluated. Your results have been saved to the server. Download your personal CSV below.