Supernova host galaxies in the dark energy survey: I. Deep coadds, photometry, and stellar masses
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Supernova host galaxies in the dark energy survey : I. Deep coadds, photometry, and stellar masses. / Wiseman, P.; Smith, M.; Childress, M.; Kelsey, L.; Moller, A.; Gupta, R. R.; Swann, E.; Angus, C. R.; Brout, D.; Davis, T. M.; Foley, R. J.; Frohmaier, C.; Galbany, L.; Gutierrez, C. P.; Inserra, C.; Kessler, R.; Lewis, G. F.; Lidman, C.; Macaulay, E.; Nichol, R. C.; Pursiainen, M.; Sako, M.; Scolnic, D.; Sommer, N. E.; Sullivan, M.; Tucker, B. E.; Abbott, T. M. C.; Aguena, M.; Allam, S.; Avila, S.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Carnero Rosell, A.; Carollo, D.; Carrasco Kind, M.; da Costa, L. N.; De Vicente, J.; Desai, S.; Diehl, H. T.; Doel, P.; Eifler, T. F.; Everett, S.; Fosalba, P.; Frieman, J.; Garcia-Bellido, J.; Gaztanaga, E.; Gerdes, D. W.; Gill, M. S. S.; DES Collaboration.
In: Monthly Notices of the Royal Astronomical Society, Vol. 495, No. 4, 19.05.2020, p. 4040-4060.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Supernova host galaxies in the dark energy survey
T2 - I. Deep coadds, photometry, and stellar masses
AU - Wiseman, P.
AU - Smith, M.
AU - Childress, M.
AU - Kelsey, L.
AU - Moller, A.
AU - Gupta, R. R.
AU - Swann, E.
AU - Angus, C. R.
AU - Brout, D.
AU - Davis, T. M.
AU - Foley, R. J.
AU - Frohmaier, C.
AU - Galbany, L.
AU - Gutierrez, C. P.
AU - Inserra, C.
AU - Kessler, R.
AU - Lewis, G. F.
AU - Lidman, C.
AU - Macaulay, E.
AU - Nichol, R. C.
AU - Pursiainen, M.
AU - Sako, M.
AU - Scolnic, D.
AU - Sommer, N. E.
AU - Sullivan, M.
AU - Tucker, B. E.
AU - Abbott, T. M. C.
AU - Aguena, M.
AU - Allam, S.
AU - Avila, S.
AU - Bertin, E.
AU - Brooks, D.
AU - Buckley-Geer, E.
AU - Burke, D. L.
AU - Carnero Rosell, A.
AU - Carollo, D.
AU - Carrasco Kind, M.
AU - da Costa, L. N.
AU - De Vicente, J.
AU - Desai, S.
AU - Diehl, H. T.
AU - Doel, P.
AU - Eifler, T. F.
AU - Everett, S.
AU - Fosalba, P.
AU - Frieman, J.
AU - Garcia-Bellido, J.
AU - Gaztanaga, E.
AU - Gerdes, D. W.
AU - Gill, M. S. S.
AU - DES Collaboration
PY - 2020/5/19
Y1 - 2020/5/19
N2 - The 5-yr Dark Energy Survey Supernova Programme (DES-SN) is one of the largest and deepest transient surveys to date in terms of volume and number of supernovae. Identifying and characterizing the host galaxies of transients plays a key role in their classification, the study of their formation mechanisms, and the cosmological analyses. To derive accurate host galaxy properties, we create depth-optimized coadds using single-epoch DES-SN images that are selected based on sky and atmospheric conditions. For each of the five DES-SN seasons, a separate coadd is made from the other four seasons such that each SN has a corresponding deep coadd with no contaminating SN emission. The coadds reach limiting magnitudes of order similar to 27 in g band, and have a much smaller magnitude uncertainty than the previous DES-SN host templates, particularly for faint objects. We present the resulting multiband photometry of host galaxies for samples of spectroscopically confirmed type Ia (SNe Ia), core-collapse (CCSNe), and superluminous (SLSNe) as well as rapidly evolving transients (RETs) discovered by DES-SN. We derive host galaxy stellar masses and probabilistically compare stellar-mass distributions to samples from other surveys. We find that the DES spectroscopically confirmed sample of SNe Ia selects preferentially fewer high-mass hosts at high-redshift compared to other surveys, while at low redshift the distributions are consistent. DES CCSNe and SLSNe hosts are similar to other samples, while RET hosts are unlike the hosts of any other transients, although these differences have not been disentangled from selection effects.
AB - The 5-yr Dark Energy Survey Supernova Programme (DES-SN) is one of the largest and deepest transient surveys to date in terms of volume and number of supernovae. Identifying and characterizing the host galaxies of transients plays a key role in their classification, the study of their formation mechanisms, and the cosmological analyses. To derive accurate host galaxy properties, we create depth-optimized coadds using single-epoch DES-SN images that are selected based on sky and atmospheric conditions. For each of the five DES-SN seasons, a separate coadd is made from the other four seasons such that each SN has a corresponding deep coadd with no contaminating SN emission. The coadds reach limiting magnitudes of order similar to 27 in g band, and have a much smaller magnitude uncertainty than the previous DES-SN host templates, particularly for faint objects. We present the resulting multiband photometry of host galaxies for samples of spectroscopically confirmed type Ia (SNe Ia), core-collapse (CCSNe), and superluminous (SLSNe) as well as rapidly evolving transients (RETs) discovered by DES-SN. We derive host galaxy stellar masses and probabilistically compare stellar-mass distributions to samples from other surveys. We find that the DES spectroscopically confirmed sample of SNe Ia selects preferentially fewer high-mass hosts at high-redshift compared to other surveys, while at low redshift the distributions are consistent. DES CCSNe and SLSNe hosts are similar to other samples, while RET hosts are unlike the hosts of any other transients, although these differences have not been disentangled from selection effects.
KW - techniques: image processing
KW - catalogues
KW - supernovae: general
KW - IA SUPERNOVAE
KW - POPULATION SYNTHESIS
KW - DATA RELEASE
KW - SPECTROSCOPY
KW - CLUSTERS
KW - PEGASE
KW - STARS
U2 - 10.1093/mnras/staa1302
DO - 10.1093/mnras/staa1302
M3 - Journal article
VL - 495
SP - 4040
EP - 4060
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 4
ER -
ID: 271540474