CoChat
Sign Up
Cited by 414Astrophysical Phenomena and ObservationsStellar, planetary, and galactic studiesGalaxies: Formation, Evolution, Phenomena

The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

Stellar Disk in the Galactic Center: A Remnant of a Dense Accretion Disk?

Open access
Levin, Yuri, Beloborodov, Andrei M.·2003·The Astrophysical Journal
DOI 10.1086/376675
Open this paper in CoChat — free accountOpen PDF

Abstract

Observations of the Galactic center revealed a population of young massive stars within 0.4 pc from Sgr A*—the presumed location of a supermassive black hole. The origin of these stars is a puzzle as their formation in situ should be suppressed by the black hole's tidal field. We find that out of 13 stars whose three-dimensional velocities have been measured by Genzel et al., 10 lie in a thin disk. The half-opening angle of the disk is consistent with zero within the measurement errors and does not exceed 10°. We propose that a recent burst of star formation has occurred in a dense gaseous disk around Sgr A*. Such a disk is no longer present because, most likely, it has been accreted by the central black hole. The three-dimensional orbit of S2, the young star closest to Sgr A*, has been recently mapped out with high precision. It is inclined to the stellar disk by 75°. We find that the orbit should undergo Lense-Thirring precession with the period of ~(6/ a ) × 10 6 yr, where a < 1 is the dimensionless spin of the black hole. Therefore, it is possible that originally the S2 orbit lay in the disk plane. The Lense-Thirring precession can turn the S2 orbit by 75° if a > 0.2( t S2 /6 × 10 6 yr) -1 , where t S2 is the age of S2.

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 · 10.1086/376675

Cites

19 of 19 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

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

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

Flagged first, then by citations

Show all 19 references

Research works printed but not linked: 3

  1. Collin S., 1999, A&A, 344, 433
  2. Kolykhalov P. I., 1980, Soviet Astron. Lett., 6, 357
  3. Paczynski B., 1978, Acta Astron., 28, 91

Cited by

Sorted by citations

Items 401–411 of 411

Related

See all

Metadata

Authors
Levin, Y., & Beloborodov, A. M.
Affiliations
  • University of Toronto (CA)
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences (RU)
ORCID
Beloborodov, Andrei M.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2003-05-16
Volume
590
Issue
1
Pages
L33-L36
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.1086/376675
OpenAlex
W1990505184
Cited by
414
References
19
Citations by year
2026: 15 · 2025: 15 · 2024: 16 · 2023: 23 · 2022: 20 · 2021: 14 · 2020: 23 · 2019: 17 · 2018: 15 · 2017: 10 · 2016: 17 · 2015: 11 · 2014: 25 · 2013: 20 · 2012: 21
FWCI
10.61
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysical Phenomena and Observations
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
Keywords
Galactic Center, Sgr A*, young massive stars, stellar disks, S2 star, Lense-Thirring precession, supermassive black holes, black hole accretion disks, three-dimensional velocity, orbital inclination, black hole spin

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