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Record W1975300467 · doi:10.1086/381162

Point Sources in the Context of Future SZ Surveys

2004· article· en· W1975300467 on OpenAlexaff
Martin White, Subhabrata Majumdar

Bibliographic record

VenueThe Astrophysical Journal · 2004
Typearticle
Languageen
FieldPhysics and Astronomy
TopicGalaxies: Formation, Evolution, Phenomena
Canadian institutionsCanadian Institute for Theoretical AstrophysicsUniversity of Toronto
Fundersnot available
KeywordsPhysicsCosmic microwave backgroundAstrophysicsContext (archaeology)South Pole TelescopeRadio telescopeAstronomyPoint sourceJames Clerk Maxwell TelescopeGalaxy clusterRedshiftTelescopeGalaxyAnisotropyStar formationGeographyOptics

Abstract

fetched live from OpenAlex

We look at the impact of infrared (IR) and radio point sources on upcoming large-yield Sunyaev-Zel'dovich (SZ) cluster surveys such as those to be undertaken by the Atacama Pathfinder Experiment (APEX), the South Pole Telescope (SPT), and the Atacama Cosmology Telescope (ACT). The IR and radio point-source counts are based on observations by the Submillimeter Common-User Bolometric Array (SCUBA) and the Wilkinson Microwave Anisotropy Probe ( WMAP ) instruments, respectively. We show that the contributions from IR-source counts, when extrapolated from the SCUBA frequency of 350 GHz to the operating frequencies of these surveys (~100-300 GHz), can be a significant source of additional noise, which needs to be accounted for in order to extract the optimal science from these surveys. These surveys give us an opportunity to study IR sources, their numbers and clustering properties, opening a new window to the high-redshift universe. For the radio point sources, the contribution depends on a more uncertain extrapolation from 40 GHz, but is comparable to the IR near 200 GHz. However, the radio signal may be correlated with clusters of galaxies and have a disproportionately larger effect.

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)0.002
metaresearch head score (Gemma)0.008
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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.006
Threshold uncertainty score0.014

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.008
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.002
Science and technology studies0.0010.001
Scholarly communication0.0020.002
Open science0.0010.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0040.001

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 head0.007
GPT teacher head0.206
Teacher spread0.199 · 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

Citations50
Published2004
Admission routes1
Has abstractyes

Explore more

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