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• W3211422021 abstract "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 mover’s 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 > τ ) is used, we find an SN rate decay slope <?CDATA $s=-{1.41}_{-0.33}^{+0.32}$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:mi>s</mml:mi> <mml:mo>=</mml:mo> <mml:mo>−</mml:mo> <mml:msubsup> <mml:mrow> <mml:mn>1.41</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>0.33</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>+</mml:mo> <mml:mn>0.32</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> and a delay time <?CDATA $tau ={120}_{-83}^{+142}mathrm{Myr}$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:mi>τ</mml:mi> <mml:mo>=</mml:mo> <mml:msubsup> <mml:mrow> <mml:mn>120</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>83</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>+</mml:mo> <mml:mn>142</mml:mn> </mml:mrow> </mml:msubsup> <mml:mi>Myr</mml:mi> </mml:math> . 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." @default.
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• W3211422021 date "2021-11-01" @default.
• W3211422021 modified "2023-09-23" @default.
• W3211422021 title "Constraining Type Ia Supernova Delay Time with Spatially Resolved Star Formation Histories" @default.
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• W3211422021 doi "https://doi.org/10.3847/1538-4357/ac178d" @default.
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