SN2018kzr: A Rapidly Declining Transient from the Destruction of a White Dwarf

• Published in: Astrophysical journal. Letters Vol. 885; no. 1; p. L23
• Main Authors: McBrien, Owen R., Smartt, Stephen J., Chen, Ting-Wan, Inserra, Cosimo, Gillanders, James H., Sim, Stuart A., Jerkstrand, Anders, Rest, Armin, Valenti, Stefano, Roy, Rupak, Gromadzki, Mariusz, Taubenberger, Stefan, Flörs, Andreas, Huber, Mark E., Chambers, Ken C., Gal-Yam, Avishay, Young, David R., Nicholl, Matt, Kankare, Erkki, Smith, Ken W., Maguire, Kate, Mandel, Ilya, Prentice, Simon, Rodríguez, Ósmar, Garcia, Jonathan Pineda, Gutiérrez, Claudia P., Galbany, Lluís, Barbarino, Cristina, Clark, Peter S. J., Sollerman, Jesper, Kulkarni, Shrinivas R., De, Kishalay, Buckley, David A. H., Rau, Arne
• Format: Journal Article
• Language: English
• Published: Austin The American Astronomical Society 01.11.2019; IOP Publishing
• Subjects: Alternative energy sources; Binary stars; Bolometers; Deposition; Ejecta; Luminosity; Magnetars; Neutron stars; Neutrons; Stellar winds; Supernova; Supernovae; White dwarf stars

We present SN2018kzr, the fastest declining supernova-like transient, second only to the kilonova, AT2017gfo. SN2018kzr is characterized by a peak magnitude of Mr = −17.98, a peak bolometric luminosity of ∼1.4 × 1043 erg s−1, and a rapid decline rate of 0.48 0.03 mag day−1 in the r band. The bolomet...