Table · dataset · 2023
PINES. II. Observations used for 131 light curves
Listed in IVOA Registry (Virtual Observatory)
We describe a new transit-detection algorithm designed to detect single- transit events in discontinuous Perkins INfrared Exosatellite Survey (PINES) observations of L and T-dwarfs.
Description
We use this algorithm to search for transits in 131 PINES light curves and identify two transit candidates: 2MASSJ18212815+1414010 (2MASSJ1821+1414) and 2MASSJ08350622+1953050 (2MASSJ0835+1953). We disfavor 2MASSJ1821+1414 as a genuine transit candidate due to the known variability properties of the source.
We cannot rule out the planetary nature of 2MASSJ0835+1953's candidate event and perform follow-up observations in an attempt to recover a second transit. A repeat event has yet to be observed, but these observations suggest that target variability is an unlikely cause of the candidate transit. We perform a Markov Chain Monte Carlo simulation of the light curve and estimate a planet radius ranging from 4.2_-1.6_^+3.5^R{Earth} to 5.8_-2.1_^+4.8^R{Earth}, depending on the host's age.
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Finally, we perform an injection and recovery simulation on our light-curve sample. We inject planets into our data using measured M-dwarf planet occurrence rates and attempt to recover them using our transit-search algorithm. Our detection rates suggest that, assuming M-dwarf planet occurrence rates, we should have roughly a 1% chance of detecting a candidate that could cause the transit depth we observe for 2MASSJ0835+1953.
If 2MASSJ0835+1953b is confirmed, it would suggest an enhancement in the occurrence of short-period planets around L and T-dwarfs in comparison to M-dwarfs, which would challenge predictions from planet formation models.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/252 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2022AJ....164..252T ui.adsabs.harvard.edu/abs/2022AJ....164..252T ↗
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/aj/164/252 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Infrared
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 74% · Simulation 75%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/164/252 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (74%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[method].local:method:simulation | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].ivoa_waveband:infrared | 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 |