Bibcode
Grayling, M.; Gutiérrez, C. P.; Sullivan, M.; Wiseman, P.; Vincenzi, M.; Galbany, L.; Möller, A.; Brout, D.; Davis, T. M.; Frohmaier, C.; Graur, O.; Kelsey, L.; Lidman, C.; Popovic, B.; Smith, M.; Toy, M.; Tucker, B. E.; Zontos, Z.; Abbott, T. M. C.; Aguena, M.; Allam, S.; Andrade-Oliveira, F.; Annis, J.; Asorey, J.; Bacon, D.; Bertin, E.; Bocquet, S.; Brooks, D.; Carnero Rosell, A.; Carollo, D.; Carrasco Kind, M.; Carretero, J.; Costanzi, M.; da Costa, L. N.; Pereira, M. E. S.; De Vicente, J.; Desai, S.; Diehl, H. T.; Doel, P.; Everett, S.; Ferrero, I.; Friedel, D.; Frieman, J.; García-Bellido, J.; Gatti, M.; Gruen, D.; Gschwend, J.; Gutierrez, G.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Lewis, G. F.; Malik, U.; March, M.; Menanteau, F.; Miquel, R.; Morgan, R.; Ogando, R. L. C.; Palmese, A.; Paz-Chinchón, F.; Pieres, A.; Plazas Malagón, A. A.; Rodriguez-Monroy, M.; Romer, A. K.; Roodman, A.; Sanchez, E.; Scarpine, V.; Sevilla-Noarbe, I.; Suchyta, E.; Tarle, G.; To, C.; Tucker, D. L.; Varga, T. N.; DES Collaboration
Bibliographical reference
Monthly Notices of the Royal Astronomical Society
Advertised on:
3
2023
Citations
2
Refereed citations
2
Description
We present the luminosity functions and host galaxy properties of the Dark Energy Survey (DES) core-collapse supernova (CCSN) sample, consisting of 69 Type II and 50 Type Ibc spectroscopically and photometrically confirmed supernovae over a redshift range 0.045 < z < 0.25. We fit the observed DES griz CCSN light curves and K-correct to produce rest-frame R-band light curves. We compare the sample with lower redshift CCSN samples from Zwicky Transient Facility (ZTF) and Lick Observatory Supernova Search (LOSS). Comparing luminosity functions, the DES and ZTF samples of SNe II are brighter than that of LOSS with significances of 3.0σ and 2.5σ, respectively. While this difference could be caused by redshift evolution in the luminosity function, simpler explanations such as differing levels of host extinction remain a possibility. We find that the host galaxies of SNe II in DES are on average bluer than in ZTF, despite having consistent stellar mass distributions. We consider a number of possibilities to explain this - including galaxy evolution with redshift, selection biases in either the DES or ZTF samples, and systematic differences due to the different photometric bands available - but find that none can easily reconcile the differences in host colour between the two samples and thus its cause remains uncertain.
Related projects
Cosmology with Large Scale Structure Probes
The Cosmic Microwave Background (CMB) contains the statistical information about the early seeds of the structure formation in our Universe. Its natural counterpart in the local universe is the distribution of galaxies that arises as a result of gravitational growth of those primordial and small density fluctuations. The characterization of the
FRANCISCO SHU
KITAURA JOYANES