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Record W3039597157 · doi:10.5539/apr.v12n3p33

The Measurement of Thickness and Velocity of Our Galaxy

2020· article· en· W3039597157 on OpenAlexvenueno aff
Jihao Yu

Bibliographic record

VenueApplied Physics Research · 2020
Typearticle
Languageen
FieldPhysics and Astronomy
TopicGamma-ray bursts and supernovae
Canadian institutionsnot available
Fundersnot available
KeywordsGalaxyPhysicsAstrophysicsDoppler effectRADIUSActive galactic nucleusSIGNAL (programming language)WavelengthRadio telescopeAstronomyTelescopeScale (ratio)OpticsComputer science

Abstract

fetched live from OpenAlex

Many of the ancient astronomers have emerged and made great progress in the measuring the scale and motion of our galaxy. With rapidly developed technology, we have a more ambitious goal for putting our eyesight out of the Earth. The radius of our galaxy can be easily detected via the observation of Doppler effect. The motion of our galaxy, and the thickness of the galactic plan, however, would be relatively difficult, either because what we want to know is not stable, or because no direct evidence helps. Now with the help of radio astronomy, the most efficient tool on astronomical measuring, we are able to find out how thick our galaxy really is. Here this paper includes the method of measuring the thickness of our galaxy via the using of radio astronomy and the Doppler effect. The whole measuring is based on an 18-meter telescope which receives only radio waves with its wavelength as 21cm. 21cm is the wavelength of the radiation released while interaction between the nuclei and the electron occurs. The signal is very useful for detecting matter in space. Since diffraction is unavoidable when receiving signals on the big disk, we used the measuring of FWHM (Full width at Half Maximum) to find out the real width of the signal in the thickness measurement part when the signal is supposed to be uniformly distributed in a special range, which indicates our galactic thickness. Although we have given out a relatively precise answer at the end, unknown factors, such as the idea of precise border of our galaxy, still has a great impact on it that we could not solve. So the result, especially the thickness measuring, provides a method to measure the structure and scale of our galaxy via radio astronomy generally.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.514
Threshold uncertainty score0.267

Codex and Gemma teacher scores by category

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

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 head0.092
GPT teacher head0.320
Teacher spread0.228 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
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
Published2020
Admission routes1
Has abstractyes

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