Zwicky Transient Facility Census of the Local Universe II: Luminosity Function of Type II Supernovae

Zwicky Transient Facility Census of the Local Universe II: Luminosity Function of Type II Supernovae presentation for the American Astronomical Society meeting

Transcript

1. Anastasios (Andy) Tzanidakis, 
 Kishalay De, Mansi Kasliwal et al. and 
 ZTF Collaboration Contact me: 
 atzanida@caltech.edu | atzanida.github.io Zwicky Transient Facility Census of the Local Universe II: Luminosity Function of Type II Supernovae SNe Ia SNe II SNe Ib SNe Ic Other 454 (40.2%) 1988 (70%) 19 (1.79%) 71 (6.29%) 77 (6.82%) 507 (44.9%) 597 (21.0%) 72 (2.50%) 89 (3.13%) 93 (3.27%) Reported on the GROWTH Marshal as of 04/10/2020 RCF CLU BTS
2. Parametric model from Villar et al. 2019 Tzanidakis et al. 2021 | 2 Largest Spectroscopically Complete Sample of Type II SN Lightcurves MCMC Separate Lightcurve Samples Extrapolate Lightcurve Parameters 291 Hydrogen-rich Spectroscopically Classi f i ed Type II SNe ZTF CLU II: Luminosity Function of Type II SNe Andy Tzanidakis, Kishalay De, Mansi Kasliwal ZTF Theory Network Meeting — 07/10/2020 California Institute of Technology
3. (1) - Observed (2) - w i = V−1 max (3) - w i = V−1 max (−0.15D CLU + 80) (4) - + Host Reddening (44%) w i (3) (2) - w i = V−1 max (4) - + Host Reddening (44%) w i (3) (1) - Observed (2) - w i = V−1 max (3) - w i = V−1 max (−0.15D CLU + 80) (4) - + Host Reddening (44%) w i (3) Arriving to a Accurate & Complete Luminosity Function Malmquist Bias CLU Galaxy 
 Completness Tzanidakis et al. 2021 | 3
4. Evidence for Bimodality in the LF of Type II SNe 
 Using a Gaussian Mixture Model We f i nd strong evidence that the BIC/AIC values prefer a two-component mixture model for the weighted LF LOSS Type II Volume-Limited Sample Tzanidakis et al. 2021 | 4 LOSS: 60 Mpc volume ~10 years ZTF CLU: 200 Mpc volume ~1.3 years
5. Evidence for Host-Reddened Type II SNe 1 Correct all type II SNe with respect to SN 1999em colors (at peak), assuming a Fitzpatrick extinction law Tzanidakis et al. 2021 | 5 2 All events with will be assumed to have Av=0 (g − r) < (g − r)99em 3 No evidence for bimodality after we apply host-extinction corrections. We caution, that the faint end suffers from small number statistics 4 The identi f i ed red and low- luminosity type II SNe show empirical signatures of host- extinction in their spectra and photometry