MétaCan
Menu
← Back to cohort
Record W6967742665 · doi:10.5281/zenodo.10950576

Axion Basinschein : A search for gravitationally bound solar axions via stimulated decay into photons

2022· dissertation· en· W6967742665 on OpenAlexaff

Bibliographic record

VenueZenodo (CERN European Organization for Nuclear Research) · 2022
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicDark Matter and Cosmic Phenomena
Canadian institutionsQueen's University
Fundersnot available
KeywordsAxionDark matterPhotonNeutron starMilky WayEcho (communications protocol)

Abstract

fetched live from OpenAlex

Abstract A recent study has found that massive particles like axions emitted from stars can enter gravitationally bound orbits around them. These particles then accumulate over the large astronomical lifetime of the star, forming a density profile around them called stellar basins. This density profile is known as the solar axion basin. In another study, it has been established that an electromagnetic signal with a wavelength corresponding to half of the axion mass produces a stimulated decay of axions into photons, which we call an echo. The geometry of this echo is such that the axion decays into two back-to-back facing photons. This master’s thesis combines these ideas to predict echo signals from axion stellar basins of various stellar objects, which we call basinschein. First, we predict the echo of keV axions from the basin of our sun, a white dwarf, and a neutron star. Secondly, consider the axion basin of our sun for various axion masses and predict their echo signals. Then, we estimate an echo signal from Milky Way’s dark matter halo. The echo signal from all these scenarios is too weak to be detected by past and present instruments; hence, it is improbable that we find a signature of such a phenomenon in current and archived data.

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)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.008

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.017
GPT teacher head0.265
Teacher spread0.248 · 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 designTheoretical or conceptual
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

Citations0
Published2022
Admission routes1
Has abstractyes

Explore more

Same venueZenodo (CERN European Organization for Nuclear Research)→Same topicDark Matter and Cosmic Phenomena→French-language works237,207→