Serendipitous Discovery of a 14-year-old Supernova at 16 Mpc
James Guillochon, Jorge Stockler de Moraes, Matt Nicholl, Daniel J., Patnaude, Katie Auchettl, Aaron J. Barth, Luis C. Ho, and Zhao-Yu Li
TL;DR
This paper reports the accidental discovery of a 14-year-old supernova in a nearby galaxy, highlighting the potential for finding old transients in existing survey data.
Contribution
It demonstrates the serendipitous identification of an old supernova using archival survey images, emphasizing the value of reanalyzing existing astronomical data.
Findings
Discovery of a 14-year-old supernova in NGC 1892
Supernova classified as likely type IIP
Highlights potential for finding old transients in archival data
Abstract
In this Research Note we present a serendipitous discovery of the transient CGS2004A (AT2004iu) in an image collected by the Carnegie-Irvine Galaxy Survey of the Scd: galaxy NGC 1892, which we determine is most likely to have been a type IIP supernova.
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Taxonomy
TopicsGamma-ray bursts and supernovae · Astrophysics and Cosmic Phenomena · Astronomy and Astrophysical Research