trailSurvival of white dwarfs and neutron stars constrains TeV-scale black hole accretion rates.
TeV-scale black holes produced at the LHC pose no significant risk.
Black holes capable of Eddington-limited accretion and radiation are also subject to astrophysical retention bounds.
Particle collisions at the LHC pose no danger to Earth.
Stellar survival bound· for
If TeV-scale black hole production is possible in particle collisions, cosmic rays striking white dwarfs or neutron stars would produce such black holes.
Cosmic ray collisions with Earth's atmosphere reach energies exceeding LHC collision energies.
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Ultra-high-energy cosmic rays strike white dwarfs and neutron stars at astrophysically significant rates.
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The highest-energy cosmic rays include a substantial proton fraction.
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Stable microscopic black holes produced by cosmic rays striking white dwarfs or neutron stars would be stopped inside those stars, whether charged or neutral.
Charged microscopic black holes are stopped in dense stellar matter by electromagnetic energy loss.
Gravitational and accretional energy loss stops neutral TeV-scale black holes inside white dwarfs.
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A rapidly accreting captured black hole would destroy its host star on timescales shorter than observed stellar ages.
Micro black holes captured inside neutron stars or white dwarfs accrete at approximately the Bondi rate
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A black hole accreting hazardously fast on Earth would accrete faster inside white dwarfs or neutron stars.
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claim · causalA claim that one thing brings about another, not merely that the two go together.constitution →claim page ↗︎
Survival of white dwarfs and neutron stars constrains TeV-scale black hole accretion rates.
↑SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →credence 0.92Credence, from 0 to 1: the Steward's probability that the claim, as stated, is true. Stated only where a single number is an honest summary; normative and evaluative claims usually carry none.constitution →
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claimA box is a claim: a single proposition the graph assesses, with its own page and map. Click any claim to centre the map on it.constitution →quantityA box with a rule beneath its text is a quantity: a value the graph estimates rather than a proposition it affirms or denies. Its estimate stands where a claim's status would.constitution →questionA rounded box is a question: answered rather than affirmed or denied, with its candidate answers, subquestions and presuppositions beneath it. Its mark says how well answered it is.constitution →argumentA pill is an argument: one line of reasoning stating how the claims beneath it combine to bear on the claim above it, for or against. Click one to see its reasoning and open its page.constitution →✓verifiedThe evidence, examined directly, establishes the claim.constitution →↑supportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →⇄inconclusiveThe evidence and argument have been examined and do not come down on either side.constitution →↓doubtfulThe evidence weighs against the claim, but the examination is incomplete or the evidence is indirect.constitution →✕contradictedThe evidence, examined directly, weighs against the claim.constitution →?unknownInsufficient information to assess.constitution →◌unassessedNo current assessment. Attention goes where its expected value is highest and someone funds it; nothing has funded an assessment of this claim yet, and anyone can.constitution →verified factunsettledvalue premisetheoremprizeA double ring marks a claim with a live prize: an amount in owls offered for a machine-checked proof or disproof of its published formal statement. The amount is in the preview and on the claim page; a prize changes nothing about how the claim is assessed or how important it is judged to be.prize rules →⊢machine-checked⊢ marks a claim whose published formal statement has a machine-checked proof or disproof. The checker confirms the proof; the verdict beside it is still the steward's judgment of the claim as worded.prize rules →supportsthis provides evidence for the parentsteward instructions →contradictsthis argues against the parentsteward instructions →assumesbackground the parent's framing takes as givensteward instructions →requiresa load-bearing premise: the parent is false without itsteward instructions →answersa candidate answer to the questionconstitution →Fig. Detail falls off with distance; every claim is an address.