An Online Framework for Fitting Fast Transient Lightcurves
| Autor: | Barna, Tyler, Reed, Brandon, Andreoni, Igor, Coughlin, Michael W., Dietrich, Tim, Groom, Steven L., Laz, Theophile Jegou du, Pang, Peter T. H, Purdum, Josiah N., Rusholme, Ben |
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| Rok vydání: | 2024 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | The identification of extragalactic fast optical transients (eFOTs) as potential multi-messenger sources is one of the main challenges in time-domain astronomy. However, recent developments have allowed for probes of rapidly-evolving transients. With the increasing number of alert streams from optical time-domain surveys, the next paradigm is building technologies to rapidly identify the most interesting transients for follow-up. One effort to make this possible is the fitting of objects to a variety of eFOT lightcurve models such as kilonovae and $\gamma$-ray burst (GRB) afterglows. In this work, we describe a new framework designed to efficiently fit transients to light curve models and flag them for further follow-up. We describe the pipeline's workflow and a handful of performance metrics, including the nominal sampling time for each model. We highlight as examples ZTF20abwysqy, the shortest long gamma ray burst discovered to date, and ZTF21abotose, a core-collapse supernova initially identified as a potential kilonova candidate. Comment: Accepted to MNRAS, 11 pages, 9 figures |
| Databáze: | arXiv |
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