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Their discovery would not have been possible without a special cosmic yardstick—exploding stars, or supernovae—specifically the variety known as Type Ia. Because Type Ia supernovae are visible ...

118, No. 842 (April 2006), pp. 560-571 (12 pages) ABSTRACT A comparative study of near–maximum‐light optical spectra of 24 Type Ia supernovae (SNe Ia) is presented. The spectra are assigned to four ...

Lawrence Berkeley Lab, University of California Berkeley Berkeley, California USA In the popular progenitor scenario, Type Ia supernova are the result of a white dwarf exploding in a binary system.

We now understand the sites for all the nucleosynthetic processes much better and that a diverse set of stellar phenomena is involved: supernovae of Type Ia and IIP (and Ib, Ic, IIL, 'hypernovae ...

Recent research highlights common envelope jet supernovae as pivotal in generating elements heavier than lanthanides, ...

Dark energy’s acceleration effects were first discovered by observing distant supernovae in the late 1990s. This was done with Type Ia supernovae, which act as “standard candles,” meaning ...

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Type Ia supernovae originate in binary star systems—systems where two stars orbit each other. In one possible scenario, there are two stars approximately the same size—let's say about the size ...