Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
As of 16 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 9 inbound Pith citation observations for arXiv:1909.08039.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-16T06:30:59.297886+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-12T05:25:50.739355Z
A source-named dated measurement, never combined with another source.
Source: arxiv_reference, observed 2026-07-02T15:07:04.715033Z
Reference resolution
0 of 0 outbound references displayed
- verified exact0
- verified fuzzy0
- unresolved0
- parse uncertain0
- malformed identifier0
- metadata mismatch0
External citation measurements
No source-named external measurement is stored.
Outbound references
No outbound reference observations are available for this paper version.
Pith citing papers
Observation b2550c7f-51c2-4554-a172-9c40008ab62c · inbound
On new regular charged black hole solutions: Limiting Curvature Condition, Quasinormal modes and Shadows cites this paper.
On new regular charged black hole solutions: Limiting Curvature Condition, Quasinormal modes and Shadows EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 124
- Resolution
- unresolved
- no resolver link, observed 2026-08-12T05:25:50.739355Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 4f041ff4-7332-4204-9ddb-36d95d141a81 · inbound
Shadow of the Scalar Hairy Black Hole with Inverted Higgs Potential cites this paper.
Shadow of the Scalar Hairy Black Hole with Inverted Higgs Potential EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 49
- Resolution
- verified exact
- arxiv_id, observed 2026-05-23T06:12:38.485708Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 25f565a0-d586-4650-8f0c-de8c87c7f784 · inbound
Signatures of modified gravity from the gravitational Aharonov-Bohm effect cites this paper.
Signatures of modified gravity from the gravitational Aharonov-Bohm effect EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 31
- Resolution
- unresolved
- no resolver link, observed 2026-08-08T12:16:43.061787Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation e712f5b7-fac5-404b-af36-d80eef69ba10 · inbound
Probing Fundamental Constant Oscillation in the Galactic Center with S-Star Spectroscopy cites this paper.
Probing Fundamental Constant Oscillation in the Galactic Center with S-Star Spectroscopy EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 132
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T18:50:28.704389Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 98afb26b-7de1-454f-a7db-0c18c3574789 · inbound
Influence of Perfect Fluid Dark Matter on Shadow Observables of Yang-Mills modified charged black holes cites this paper.
Influence of Perfect Fluid Dark Matter on Shadow Observables of Yang-Mills modified charged black holes EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 60
- Resolution
- unresolved
- no resolver link, observed 2026-08-05T11:01:16.721533Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 7f21ffab-b524-40b2-9020-e32919d4a2d8 · inbound
Perturbations in the parametrized wormhole spacetime and their related quasinormal modes cites this paper.
Perturbations in the parametrized wormhole spacetime and their related quasinormal modes EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 22
- Resolution
- verified exact
- arxiv_id, observed 2026-05-11T18:31:12.295966Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 537d842d-d173-47a9-a80e-12f284cc298d · inbound
$\tt BlackHawk$ $\tt v3.0$: Hawking Radiation from Regular Black Holes cites this paper.
$\tt BlackHawk$ $\tt v3.0$: Hawking Radiation from Regular Black Holes EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 34
- Resolution
- verified exact
- arxiv_id, observed 2026-07-02T15:07:04.716380Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 2d9d3019-806e-41a7-8edd-34b47e5e8614 · inbound
Charged black holes embedded in matter with anisotropic pressure: Horizon Structure and Quasinormal Mode Spectra cites this paper.
Charged black holes embedded in matter with anisotropic pressure: Horizon Structure and Quasinormal Mode Spectra EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 21
- Resolution
- unresolved
- no resolver link, observed 2026-07-11T05:57:01.232030Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 9a9c8fe9-8731-469c-97d0-99af51bfe788 · inbound
Evaporating cosmologically coupled black holes cites this paper.
Evaporating cosmologically coupled black holes EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
Reference 8
- Resolution
- unresolved
- no resolver link, observed 2026-08-02T03:35:47.635811Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.