Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 268

The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

Testing the General Relativistic "No-Hair" Theorems Using the Galactic Center Black Hole Sagittarius A*

Open access
Will, Clifford M.·2008·The Astrophysical Journal

Abstract

If a class of stars orbits the central black hole in our galaxy in short-period (~0.1 yr), high-eccentricity (~0.9) orbits, they will experience precessions of their orbital planes induced by both relativistic frame dragging and the quadrupolar gravity of the hole, at levels that could be as large as 10 μas per year, if the black hole is rotating faster than half of its maximum rotation rate. Astrometric observations of the orbits of at least two such stars can in principle lead to a determination of the angular momentum vector of the black hole and its quadrupole moment Q 2 . This could lead to a test of the general relativistic no-hair theorems, which demand that Q 2 = − J 2 / M . Future high-precision adaptive infrared optics instruments may make such a fundamental test of the black hole paradigm possible.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1086/528847

Cites

13 of 13 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 13 references

Cited by

See all 268

Metadata

Authors
Will, C. M.
Venue
The Astrophysical Journal
Published
2008-01-11
Volume
674
Issue
1
Pages
L25-L28
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W1987346517
Cited by
268
References
13
FWCI
8.65
Type
journal article
Language
en
Open access
bronze

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Testing the General Relativistic "No-Hair" Theorems Using the Galactic Center Black Hole Sagittarius A*. https://app.cochat.ai/papers/10.1086/528847
The paper
Will, C. M. (2008). Testing the General Relativistic "No-Hair" Theorems Using the Galactic Center Black Hole Sagittarius A*. The Astrophysical Journal. https://doi.org/10.1086/528847

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.