Type Ia supernovae (SNe Ia) produce most of the Fe-peak elements in the Universe and therefore are a crucial ingredient in galactic chemical evolution models. SNe Ia do not explode immediately after star formation, and the delay-time distribution (DTD) has not been definitively determined by supernova surveys or theoretical models. Because the DTD also affects the relationship among age, [Fe/H], and [$α$/Fe] in chemical evolution models, comparison with observations of stars in the Milky Way is an important consistency check for any proposed DTD. We implement several popular forms of the DTD in combination with multiple star formation histories for the Milky Way in multi-zone chemical evolution models which include radial stellar migration. We compare our predicted interstellar medium abundance tracks, stellar abundance distributions, and stellar age distributions to the final data release of the Apache Point Observatory Galactic Evolution Experiment (APOGEE). We find that the DTD has the largest effect on the [$α$/Fe] distribution: a DTD with more prompt SNe Ia produces a stellar abundance distribution that is skewed toward a lower [$α$/Fe] ratio. While the DTD alone cannot explain the observed bimodality in the [$α$/Fe] distribution, in combination with an appropriate star formation history it affects the goodness of fit between the predicted and observed high-$α$ sequence. Our model results favor an extended DTD with fewer prompt SNe Ia than the fiducial $t^{-1}$ power law.
It's a matter of time: Empirical Constraints on Supernova Yields and Delay Times from Dwarf Spheroidal Galaxies
University of Toronto（多伦多大学）；David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto（多伦多大学戴维·A·邓拉普天文学与天体物理系）；Dunlap Institute for Astronomy & Astrophysics, University of Toronto（多伦多大学邓拉普天文学与天体物理研究所）；Data Sciences Institute, University of Toronto（多伦多大学数据科学研究所）；Department of Astronomy & Astrophysics, University of Chicago（芝加哥大学天文学与天体物理系）；Kavli Institute for Cosmological Physics, University of Chicago（芝加哥大学卡弗里宇宙物理学研究所）
The time-delay model and its applications to galactic archaeology
Trieste University（的里雅斯特大学）；Osservatorio Astronomico di Trieste, INAF（的里雅斯特天文台，意大利国家天体物理研究所）；Sezione di Trieste, INFN（的里雅斯特分部，意大利国家核物理研究所）；IFPU, Institute for the Fundamental Physics of the Universe（宇宙基本物理研究所）
Low [O/Fe] Ratio in a Luminous Galaxy at the Early Cosmic Epoch ($z>10$): Signature of Short Delay Time or Bright Hypernovae/Pair-Instability Supernovae?
LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations
The Dark Matter Diffused Supernova Neutrino Background
Arizona State University（亚利桑那州立大学）；Virginia Tech（弗吉尼亚理工大学）；High Energy Accelerator Research Organization (KEK)（高能加速器研究机构）；Massachusetts Institute of Technology（麻省理工学院）；Harvard University（哈佛大学）
