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Record W3124101479

[no title]

2002· article· en· W3124101479 on OpenAlexaff
J. M. Castro Cerón, A. J. Castro‐Tirado, J. Gorosabel, Olga Suárez, J. Hjorth, B. L. Jensen, H. Pedersen, J. P. U. Fynbo, M. I. Andersen, M. López‐Corredoira, Y. Grosdidier, J. Casares, D. Pérez-Ramírez, B. Milvang‐Jensen, G. Mallén-Ornelas, A. S. Fruchter, J. Greiner, E. Pian, P. M. Vreeswijk, L. Kaper, E. Rol, I. Salamanca, S. D. Barthelmy, T. Cline, J. I. Trombka, F. Frontera, N. Masetti, E. Palazzi, S. Klose, C. Kouveliotou, D. H. Hartmann, K. Hurley, E. Mazets, H.‐S. Park, N. R. Tanvir, R. A. M. J. Wijers, G. G. Williams

Bibliographic record

VenueUvA-DARE (University of Amsterdam) · 2002
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAstro and Planetary Science
Canadian institutionsUniversity of Toronto
FundersInstituto de Astrofísica de AndalucíaMinisterio de Ciencia y TecnologíaEuropean CommissionNational Aeronautics and Space Administration
KeywordsObservatoryTelescopeAfterglowDanishOptical telescopePhysicsGeographyGamma-ray burstAstrophysics
DOInot available

Abstract

fetched live from OpenAlex

We present optical follow up observations of the long GRB 001007 between 6.14 hours and ~468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index $\\alpha$ = -2.03 $\\pm$ 0.11, possibly indicating a break in the light curve at $t - t_{\\rm0} <$ 3.5 days, as found in other bursts. Upper limits imposed by the LOTIS alerting system 6.14 hours after the gamma ray event provide tentative (1.2 $\\sigma$) evidence for a break in the optical light curve. The spectral index $\\beta$ of the OA yields -1.24 $\\pm$ 0.57. These values may be explained both by several fireball jet models and by the cannonball model. Fireball spherical expansion models are not favoured. Late epoch deep imaging revealed the presence of a complex host galaxy system, composed of at least two objects located 1.2´´ (1.7 $\\sigma$) and 1.9´´ (2.7 $\\sigma$) from the afterglow position.

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)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.993
Threshold uncertainty score0.000

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0070.003

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 head0.011
GPT teacher head0.151
Teacher spread0.140 · 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.

Study designNot applicable
Domainnot available
GenreOther

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

Citations5
Published2002
Admission routes1
Has abstractyes

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