Table · dataset · 2023
r-band Type Ia supernovae
Listed in IVOA Registry (Virtual Observatory)
An increase in the number of studied Type Ia supernovae (SNe Ia) has demonstrated that this class of explosions has a greater diversity in its observables than was previously assumed.
Description
The reasons (e.g. the explosion mechanism, progenitor system) for such a diversity remain unknown. Here, we analyse a sample of r-band light curves of SNe Ia, focusing on their behaviour ~2-4 weeks after maximum light, i.e. the second maximum.
We characterize the second maximum by its timing (t_r2_) and the integrated flux (F_r2_). We find that tr2 correlates with the 'colour-stretch' parameter sBV , which can be used as a proxy for ^56^Ni mass, and F_r2_ correlates with the transparency time-scale, t0. Using F_r2_ for a sample of 199 SNe from the Palomar Transient Factory and intermediate Palomar Transient Factory, we evaluate a distribution on t0 for a sample of SNe Ia found in an 'untargeted' survey.
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Comparing this distribution to the predictions of t0 ranges from models we find that the largest overlap in t0 values between models and observations is for the sub-Chandrasekhar double detonation models. We also compare our relations between t0 and F_r2_ with that from the 1D explosion models of Goldstein & Kasen (2018ApJ...852L..33G) and confirm that F_r2_ can be used as a diagnostic of the total ejecta mass.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/485/2343 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2019MNRAS.485.2343P ui.adsabs.harvard.edu/abs/2019MNRAS.485.2343P ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/mnras/485/2343 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/mnras/485/2343 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |