MétaCan
Menu
← Back to cohort
Record W4300117058 · doi:10.48550/arxiv.1506.03873

High-Resolution Images of Diffuse Neutral Clouds in the Milky Way. I.\n Observations, Imaging, and Basic Cloud Properties

2015· preprint· W4300117058 on OpenAlexaff
Yurii Pidopryhora, Felix J. Lockman, J. M. Dickey, M. P. Rupen

Bibliographic record

VenuearXiv (Cornell University) · 2015
Typepreprint
Language
FieldPhysics and Astronomy
TopicAstrophysics and Star Formation Studies
Canadian institutionsDominion Astrophysical Observatory
Fundersnot available
KeywordsPhysicsAstrophysicsMilky WayGalactic planeGalaxyInterstellar mediumAstronomyPopulationGalactic CenterMolecular cloudInterstellar cloudStars

Abstract

fetched live from OpenAlex

A set of diffuse interstellar clouds in the inner Galaxy within a few hundred\npc of the Galactic plane has been observed at an angular resolution of ~1\narcmin combining data from the NRAO Green Bank Telescope and the Very Large\nArray. At the distance of the clouds the linear resolution ranges from ~1.9 pc\nto ~2.8 pc. These clouds have been selected to be somewhat out of the Galactic\nplane and are thus not confused with unrelated emission, but in other respects\nthey are a Galactic population. They are located near the tangent points in the\ninner Galaxy, and thus at a quantifiable distance: $2.3 \\leq R \\leq 6.0$ kpc\nfrom the Galactic Center, and $-1000 \\leq z \\leq +610$ pc from the Galactic\nplane. These are the first images of the diffuse neutral HI clouds that may\nconstitute a considerable fraction of the ISM. Peak HI column densities range\nfrom $N_{HI} = 0.8-2.9 \\times 10^{20}$ cm$^{-2}$. Cloud diameters vary between\nabout 10 and 100 pc, and their HI mass spans the range from less than a hundred\nto a few thousands Msun. The clouds show no morphological consistency of any\nkind except that their shapes are highly irregular. One cloud may lie within\nthe hot wind from the nucleus of the Galaxy, and some clouds show evidence of\ntwo distinct thermal phases as would be expected from equilibrium models of the\ninterstellar medium.\n

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 categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.005
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.063
GPT teacher head0.187
Teacher spread0.123 · 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 designObservational
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

Citations0
Published2015
Admission routes1
Has abstractyes

Explore more

Same venuearXiv (Cornell University)→Same topicAstrophysics and Star Formation Studies→French-language works237,207→