Using machine learning for transient classification in searches for gravitational-wave counterparts
Problem
Large gravitational-wave sky localization regions produce many transient candidates that must be prioritized given restricted telescope time.
Why it matters
Efficient follow-up determines whether costly telescope time finds true kilonova counterparts.
What the AI did
The astrorapid multiband photometric light-curve classifier was used to differentiate kilonovae, supernovae, and other transients, tested on real events and simulated light curves.
Results
After only a few days of observations, candidates can be ruled out as supernovae and other known transients.
Impact
Demonstrated on real and simulated events that candidates can be rapidly excluded, enabling prioritized follow-up lists.
Record
| Venue | Monthly Notices of the Royal Astronomical Society |
|---|---|
| Published | 2020 |
| Work type | article |
| Authors | C. Stachie, M. W. Coughlin, Nelson L Christensen, Daniel Muthukrishna |
| Citations | 18 (OpenAlex, at import time) |
| References | 84 |
| Model or method | astrorapid (multiband photometric light-curve classifier) |
| Organization | not stated in source |
| Primary source | https://doi.org/10.1093/mnras/staa1776 |
| Open access | green |
| Keywords | machine learning, transient classification, kilonovae, gravitational waves, light curves |
Importance rating
real but narrower advance
Prioritizing transient candidates given restricted telescope time matters for gravitational-wave follow-up, but the abstract gives no scale of affected research or resources.
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