Constraining Type Ia Supernova Delay Time with Spatially Resolved Star Formation Histories Academic Article uri icon


  • Abstract We present the delay time distribution (DTD) estimates of Type Ia supernovae (SNe Ia) using spatially resolved SN Ia host galaxy spectra from MUSE and MaNGA. By employing a grouping algorithm based on k-means and earth movers distances (EMDs), we separated the host galaxy stellar population age distributions (SPADs) into spatially distinct regions and used maximum likelihood method to constrain the DTD of SN Ia progenitors. When a power-law model of the form DTD(t) t s (t > ) is used, we find an SN rate decay slope s = 1.41 0.33 + 0.32 and a delay time = 120 83 + 142 Myr . Moreover, we tested other DTD models, such as a broken power-law model and a two-component power-law model, and found no statistically significant support for these alternative models.

published proceedings


altmetric score

  • 7.33

author list (cited authors)

  • Chen, X., Hu, L., & Wang, L.

citation count

  • 5

complete list of authors

  • Chen, Xingzhuo||Hu, Lei||Wang, Lifan

publication date

  • November 2021