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Record W2940787042 · doi:10.1088/1538-3873/ab152e

Occultations by Small Non-spherical Trans-Neptunian Objects. I. A New Event Simulator for TAOS II

2019· article· en· W2940787042 on OpenAlexaff
J. H. Castro-Chacón, M. Reyes‐Ruiz, M. J. Lehner, Z. W. Zhang, Charles Alcock, C. A. Guerrero, B. Hernández-Valencia, J. B. Hernández-Águila, Juan Núñez, Javier Salinas-Luna, José Silva, Mike Alexandersen, Fernando Álvarez Santana, W. P. Chen, You‐Hua Chu, K. H. Cook, Ma. T. García-Díaz, John C. Geary, Chung-Kai Huang, J. J. Kavelaars, Timothy Norton, Andrew Szentgyorgyi, J. Carvajal, E. J. López-Sánchez, Wei-Ling Yen

Bibliographic record

VenuePublications of the Astronomical Society of the Pacific · 2019
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAstro and Planetary Science
Canadian institutionsUniversity of VictoriaHerzberg Institute of Astrophysics
FundersDirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de MéxicoConsejo Nacional de Ciencia y Tecnología
KeywordsOccultationEclipseEvent (particle physics)PhysicsProjection (relational algebra)Binary numberAstronomyAstrophysicsComputer scienceMathematicsAlgorithm

Abstract

fetched live from OpenAlex

We present a new occultation event simulator for the Trans-Neptunian Automated Occultation Survey (TAOS II).We have developed a method to compute occultation shadows by small objects with non-circular apparent shapes (as may result from an intrinsic morphology or from the projection of a contact binary).The new simulator calculates diffraction features in the occultation shadows, as well as resulting light curves as would be measured by the TAOSII survey system.We include effects such as the spectral type and finite angular size of the occulted star.We find that occultation events, especially by Trans-Neptunian Objects with diameters ∼3 km may be misidentified or mischaracterized when not taking non-spherical shapes into account.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.015
Threshold uncertainty score0.029

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0020.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.008
GPT teacher head0.208
Teacher spread0.200 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations6
Published2019
Admission routes1
Has abstractyes

Explore more

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