Circumstellar material in type Ia supernovae via sodium absorption features.
Sternberg A, Gal-Yam A, Simon JD, Leonard DC, Quimby RM, Phillips MM, Morrell N, Thompson IB, Ivans I, Marshall JL, Filippenko AV, Marcy GW, Bloom JS, Patat F, Foley RJ, Yong D, Penprase BE, Beeler DJ, Allende Prieto C, Stringfellow GS.
Sternberg A, et al. Among authors: yong d.
Science. 2011 Aug 12;333(6044):856-9. doi: 10.1126/science.1203836.
Science. 2011.
PMID: 21836010