1. An online framework for fitting fast transient light curves.
- Author
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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, and Rusholme, Ben
- Subjects
LIGHT curves ,GAMMA ray bursts ,STELLAR mergers ,ASTRONOMY ,BLACK holes ,SUPERNOVAE - Abstract
The identification of extragalactic fast optical transients (eFOTs) as potential multimessenger 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 light curve models such as kilonovae and γ-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. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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