Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
As of 9 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 22 inbound Pith citation observations for arXiv:astro-ph/9904193.
A citation records a reference. It does not transfer a finding from one paper to another.
Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-08T06:32:00.761636+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-07T10:46:52.617199Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-07-01T17:35:51.449115Z
0 of 0 outbound references displayed
External citation measurements
No source-named external measurement is stored.
No outbound reference observations are available for this paper version.
Observation 8edf7ff4-3527-4636-ab7d-23f67297dc50 · inbound
Generalized Misner-Sharp energy in $f(R,\mathcal{G})$ gravity Schwarzschild black hole lensing
Reference 32
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 121e7216-3630-4ce9-8472-0836a660fc1b · inbound
Bright ring features and polarization structures in Kerr-Sen black hole images illuminated by radiatively inefficient accretion flows Schwarzschild black hole lensing
Reference 18
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation d5b69bcb-27ae-492f-ac3e-1b41a4f231f1 · inbound
Gravitational Lensing by Black Holes in Einstein-nonlinear Electrodynamic Theories with Multiple Photon Spheres Schwarzschild black hole lensing
Reference 39
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 3b1d6ad6-0939-4429-8a1b-239105905f50 · inbound
Strong gravitational lensing by black hole in F(R) Euler Heisenberg Gravity's Rainbow Schwarzschild black hole lensing
Reference 58
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 918ad63d-44ad-4cc7-8e8c-c74086a30ccc · inbound
Semi-Analytic Trajectory Analysis of Light in Generic Static Spacetimes Schwarzschild black hole lensing
Reference 5
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 3536fffe-d5c5-4f29-9811-218a0f8e2e05 · inbound
The existence and upper bound for stable photon spheres in static spherically symmetric black holes Schwarzschild black hole lensing
Reference 1
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 7bc28e6e-72d9-479c-8969-5e67fda52d64 · inbound
Image of a quantum-corrected black hole without Cauchy horizons illuminated by a static thin accretion disk Schwarzschild black hole lensing
Reference 7
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation ed3af968-ee13-4304-a15b-218486b1dbc6 · inbound
Boundary-only weak deflection angles from isothermal optical geometry Schwarzschild black hole lensing
Reference 11
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 29aa1e67-d6fb-4d87-a134-39c1082f6c81 · inbound
Strong field gravitational lensing of particles by a black-bounce-Schwarzschild black hole Schwarzschild black hole lensing
Reference 3
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 2658d96b-9e20-47e7-a185-5bce039bb8a0 · inbound
Rotating Black Holes with Primary Scalar Hair: Shadow Signatures in Beyond Horndeski Gravity Schwarzschild black hole lensing
Reference 94
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation a3a45dee-3ba1-4b1c-8c35-56e5c5c8ff6f · inbound
Strong-deflection expansion of the deflection angle near a degenerate photon sphere Schwarzschild black hole lensing
Reference 15
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 4ed7218c-a0ee-4a74-b201-af1549e193e7 · inbound
Optical and orbital characterization of spherically symmetric static black holes of self-gravitating new nonlinear electrodynamics model Schwarzschild black hole lensing
Reference 20
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation e20bd467-06b6-403a-8f0d-d68fc5653f03 · inbound
Observational constraints on nonlocal black holes via gravitational lensing Schwarzschild black hole lensing
Reference 50
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation f52df2d5-1c36-4b6a-af5f-5aa79fb02651 · inbound
Photon Sphere and Shadow of a Perturbative Black Hole in $f(R,\mathcal{G})$ Gravity Schwarzschild black hole lensing
Reference 17
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation ce93498a-2f92-4486-a022-3005f92b540a · inbound
Photon Sphere and Shadow of a Perturbative Black Hole in $f(R,\mathcal{G})$ Gravity Schwarzschild black hole lensing
Reference 24
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 8f125f5b-41d3-40ba-8cd8-20629f0a8923 · inbound
Photon Sphere and Shadow of a Perturbative Black Hole in $f(R,\mathcal{G})$ Gravity Schwarzschild black hole lensing
Reference 31
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 002d6bf9-04f4-47bb-a0b6-0d71e9b0880a · inbound
Regular black hole solutions and the quark chemical potential at the QCD phase transition Schwarzschild black hole lensing
Reference 36
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 3ae87906-ed48-4bfc-8ba7-656d564ca408 · inbound
Bounds on the radius of outermost photon sphere and black hole shadow in $n$-dimensional Einstein gravity Schwarzschild black hole lensing
Reference 6
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 7c0b9103-0730-4f53-b20d-57c5fb88bd03 · inbound
Bounds on the radius of outermost photon sphere and black hole shadow in $n$-dimensional Einstein gravity Schwarzschild black hole lensing
Reference 6
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 6cb013ac-366f-492b-a910-c5851848ad13 · inbound
Revisit Static Aether: Exact Vacuum Solution in Einstein-Aether Theory and Its Analytic Extension Schwarzschild black hole lensing
Reference 40
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation b4157d0d-f60b-4100-9f9b-d808056e60da · inbound
Gravitational Lensing in a Kasner Background: Distinguishing Wormholes and Black Holes Schwarzschild black hole lensing
Reference 41
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 57b952a1-d518-4bc0-9037-6c1101b0dd7c · inbound
Spin precession in the strong deflection limit Schwarzschild black hole lensing
Reference 26
Source-reported events for the cited work
Unavailable: canonical work link unavailable.