Program: GS-2022A-Q-235

Title:Formation and Temporal Evolution of CO and Dust in Nearby Core-Collapse Supernovae
PI:Jeonghee Rho
Co-I(s): Aravind Pazhayath Ravi, , Sung-Chul Yoon, Seong Hyun Park, Thomas R. Geballe, Peter Hoeflich, Melissa Shahbandeh, Kaew Samaporn Tinyanont, Maryam Modjaz, Marc Williamson, Griffin Hosseinzadeh, Regis Cartier, Morten Andersen, Stefano Valenti, Andrew Howell, Danny Milisavljevic, Matthew Millard, Harim Jin, Sangwook Park, Heechan Cha, Tamas Szalai, Ilse De Looze, Jeremy Chastenet, Maria Drout, Nick Suntzeff:

Abstract

We propose to continue our sToO near-IR spectroscopic observations of core-collapse supernovae (ccSNe), which are aimed at settling the question of whether ccSNe are major dust producers in the early universe. High-z galaxies contain large quantities of dust, which AGB stars cannot have produced since they do not exist in the early universe. Some ccSN remnants are known to contain copious amounts of dust that explain the dust at high-z. However, the dust masses in ccSNe are much smaller. Our previous Gemini near-IR spectroscopic programs to study the temporal evolution of CO- and dust- production in nearby ccSNe have produced comprehensive data addressing this question and our results contain significant implications for theoretical modeling. It is now vitally important to expand on this sample of recent ccSNe to understand the SNe contribution to cosmic dust formation because dust formation can vary substantially with ccSN types such as Ibc, IIn, SLSNe, and IIP. The sample will also enable us to determine the impact of the pre-SN dust. Our program will produce NIR templates of the temporal evolution of a diverse group of ccSNe, which are crucial for building the IMFs of their progenitors and preparing for JWST, which will observe the mid-IR dust continuum.