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The Candidate Progenitor of the Type IIn SN 2010jl is Not an Optically Luminous Star
Ori D. Fox, Schuyler D. Van Dyk, Eli Dwek +8
The nature of the progenitor star (or system) for the Type IIn supernova (SN) subclass remains uncertain. While there are direct imaging constraints on the progenitors of at least…
Chandra Observes the End of an Era SN 1987A
Kari A. Frank, Svetozar A. Zhekov, Sangwook Park +3
Updated imaging and photometric results from Chandra observations of SN 1987A, covering the last 16 years, are presented. We find that the 0.5-2 keV light curve has remained consta…
Iron: A Key Element for Understanding the Origin and Evolution of Interstellar Dust
Eli Dwek
The origin and depletion of iron differ from all other abundant refractory elements that make up the composition of the interstellar dust. Iron is primarily synthesized in Type Ia…
Dust Destruction by the Reverse Shock in the Cassiopeia A Supernova Remnant
Elisabetta R. Micelotta, Eli Dwek, Jonathan D. Slavin
Core collapse supernovae (CCSNe) are important sources of interstellar dust, potentially capable of producing one solar mass of dust in their explosively expelled ejecta. However,…
Infrared Continuum and Line Evolution of the Equatorial Ring around SN 1987A
Richard G. Arendt, Eli Dwek, Patrice Bouchet +5
Spitzer observations of SN 1987A have now spanned more than a decade. Since day ~4,000, mid-infrared (mid-IR) emission has been dominated by that from shock-heated dust in the equa…