The First Data Release of CNIa0.02-A Complete Nearby (Redshift <0.02) Sample of Type Ia Supernova Light Curves*

Chen Ping; Dong Subo; Kochanek CS; Stanek KZ; Post RS; Stritzinger MD; Prieto JL; Filippenko Alexei V; Kollmeier Juna A; Elias-Rosa N; Katz Boaz; Tomasella Lina; Bose S; Ashall Chris; Benetti S; Bersier D; Brimacombe Joseph; Brink Thomas G; Brown P; Buckley David AH; Cappellaro Enrico; Christie Grant W; Fraser Morgan; Gromadzki Mariusz; Holoien Thomas WS; Hu Shaoming; Kankare Erkki; Koff Robert; Lundqvist P; Mattila S; Milne PA; Morrell Nidia; Munoz JA; Mutel Robert; Natusch Tim; Nicolas Joel; Pastorello A; Prentice Simon; Roth Tyler; Shappee BJ; Stone Geoffrey; Thompson Todd A; Villanueva Steven; Zheng WeiKang
The First Data Release of CNIa0.02-A Complete Nearby (Redshift <0.02) Sample of Type Ia Supernova Light Curves*

Chen Ping
Dong Subo
Kochanek CS
Stanek KZ
Post RS
Stritzinger MD
Prieto JL
Filippenko Alexei V
Kollmeier Juna A
Elias-Rosa N
Katz Boaz
Tomasella Lina
Bose S
Ashall Chris
Benetti S
Bersier D
Brimacombe Joseph
Brink Thomas G
Brown P
Buckley David AH
Cappellaro Enrico
Christie Grant W
Fraser Morgan
Gromadzki Mariusz
Holoien Thomas WS
Hu Shaoming
Kankare Erkki
Koff Robert
Lundqvist P
Mattila S
Milne PA
Morrell Nidia
Munoz JA
Mutel Robert
Natusch Tim
Nicolas Joel
Pastorello A
Prentice Simon
Roth Tyler
Shappee BJ
Stone Geoffrey
Thompson Todd A
Villanueva Steven
Zheng WeiKang
Katso/Avaa
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IOP Publishing Ltd
doi:10.3847/1538-4365/ac50b7
URI
https://iopscience.iop.org/article/10.3847/1538-4365/ac50b7
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Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2022081154358
Tiivistelmä
The CNIa0.02 project aims to collect a complete, nearby sample of Type Ia supernovae (SNe Ia) light curves, and the SNe are volume-limited with host-galaxy redshifts z (host) < 0.02. The main scientific goal is to infer the distributions of key properties (e.g., the luminosity function) of local SNe Ia in a complete and unbiased fashion in order to study SN explosion physics. We spectroscopically classify any SN candidate detected by the All-Sky Automated Survey for Supernovae (ASAS-SN) that reaches a peak brightness <16.5 mag. Since ASAS-SN scans the full sky and does not target specific galaxies, our target selection is effectively unbiased by host-galaxy properties. We perform multiband photometric observations starting from the time of discovery. In the first data release (DR1), we present the optical light curves obtained for 247 SNe from our project (including 148 SNe in the complete sample), and we derive parameters such as the peak fluxes, Delta m (15), and s (BV) .
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