Figure 5 from ZTF 18aaqeasu (SN2018byg): A Massive Helium-shell Double Detonation on a Sub-Chandrasekhar-mass White Dwarf

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ZTF 18aaqeasu (SN2018byg): A Massive Helium-shell Double Detonation on a Sub-Chandrasekhar-mass White Dwarf

Authors: Kishalay De, Mansi M. Kasliwal, Abigail Polin, Peter E. Nugent, Lars Bildsten, Scott M. Adams, Eric C. Bellm, Nadia Blagorodnova, Kevin B. Burdge, Christopher Cannella, S. Bradley Cenko, Richard G. Dekany, Michael Feeney, David Hale, U. Christoffer Fremling, Matthew J. Graham, Anna Y. Q. Ho, Jacob E. Jencson, S. R. Kulkarni, Russ R. Laher, Frank J. Masci, Adam A. Miller, Maria T. Patterson, Umaa Rebbapragada, Reed L. Riddle, David L. Shupe, and Roger M. Smith

2019 The Astrophysical Journal Letters 873 L18.

Provider: AAS Journals

Caption: Figure 5.

Comparison of the photometric evolution of ZTF 18aaqeasu with that of the He shell double detonation models in Kromer et al. (2010; K10, dashed lines) and Polin et al. (2019; P18, solid lines). The model parameters are indicated in the legend as (WD mass, shell mass, mixing length), and where NM stands for No Mixing. The left panel shows the r-band evolution, while the right panels show the g − r and r − i color evolution with the same color schemes for the models. On the right panel, circles denote colors derived from the spectra, while squares denote colors derived from photometry.

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