We present the luminosity function and volumetric rate of a sample of Type IIP supernovae (SNe) from the Zwicky Transient Facility Census of the Local Universe survey (CLU). This is the largest sample of Type IIP SNe from a systematic volume-limited survey to-date. The final sample includes 330 Type IIP SNe and 36 low-luminosity Type II (LLIIP) SNe with Mr,peak > −16 mag, which triples the literature sample of LLIIP SNe. The fraction of LLIIP SNe is 19−4+3% of the total CLU Type IIP SNe population ( 8−2+1% of all core-collapse SNe). This implies that while LLIIP SNe likely represent the fate of core-collapse SNe of 8–12 M⊙ progenitors, they alone cannot account for the fate of all massive stars in this mass range. To derive an absolute rate, we estimate the ZTF pipeline efficiency as a function of the apparent magnitude and the local surface brightness. We derive a volumetric rate of (3.9−0.4+0.4)×104Gpc−3yr−1 for Type IIP SNe and (7.3−0.6+0.6)×103Gpc−3yr−1 for LLIIP SNe. Now that the rate of LLIIP SNe is robustly derived, the unresolved discrepancy between core-collapse SN rates and star formation rates cannot be explained by LLIIP SNe alone.
Low-luminosity Type IIP Supernovae from the Zwicky Transient Facility Census of the Local Universe. I. Luminosity Function, Volumetric Rate
K. Das,M. Kasliwal,C. Fremling,J. Sollerman,D. Perley,K. De,A. Tzanidakis,Tawny Sit,S. Adams,Shreya Anand,Tomas Ahumuda,I. Andreoni,S. Brennan,T. Brink,R. Bruch,Ping Chen,Matthew R. Chu,David O. Cook,Sofia Covarrubias,A. Dahiwale,Nicholas Earley,A. Ho,A. Gal-yam,A. Gangopadhyay,E. Hammerstein,K. Hinds,V. Karambelkar,Y. Kong,S. Kulkarni,Theophile Jegou du Laz,Chang Liu,W. Meynardie,Adam A. Miller,G. Nir,K. Patra,P. Pessi,R. Rich,N. Rehemtulla,Sam Rose,B. Rusholme,S. Schulze,Y. Sharma,Avinash Singh,Roger M. Smith,R. Stein,Milan Sharma Mandigo-Stoba,N. Strotjohann,Yu-Jing Qin,J. Wise,A. Wold,Lin Yan,Yi Yang,Yuhan Yao,E. Zimmerman
Published 2025 in Publications of the Astronomical Society of the Pacific
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2025
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Publications of the Astronomical Society of the Pacific
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2025-02-26
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