CoChat
Sign Up
Cited by 85Cosmology and Gravitation TheoriesAstrophysical Phenomena and ObservationsGalaxies: Formation, Evolution, Phenomena

The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

OBSERVATIONAL UPPER BOUND ON THE COSMIC ABUNDANCES OF NEGATIVE-MASS COMPACT OBJECTS AND ELLIS WORMHOLES FROM THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH

Open access
Takahashi, Ryuichi, Asada, Hideki·2013·The Astrophysical Journal
DOI 10.1088/2041-8205/768/1/l16
Open this paper in CoChat — free accountOpen PDF

Abstract

The latest result in the Sloan Digital Sky Survey Quasar Lens Search (SQLS) has set the first cosmological constraints on negative-mass compact objects and Ellis wormholes. There are no multiple images lensed by the above two exotic objects for ∼50, 000 distant quasars in the SQLS data. Therefore, an upper bound is put on the cosmic abundances of these lenses. The number density of negative-mass compact objects is n < 10 −8 (10 −4 ) h 3 Mpc −3 at the mass scale | M | > 10 15 (10 12 ) M ☉ , which corresponds to the cosmological density parameter |Ω| < 10 −4 at the galaxy and cluster mass range | M | = 10 12–15 M ☉ . The number density of the Ellis wormhole is n < 10 −4 h 3 Mpc −3 for a range of the throat radius a = 10–10 4 pc, which is much smaller than the Einstein ring radius.

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 · 10.1088/2041-8205/768/1/l16

Cites

24 of 24 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

Research works printed but not linked: 21

  1. Barnacka, 2012, PhRvD, 86, 043001
  2. Bondi, 1957, RvMP, 29, 423
  3. Cramer, 1995, PhRvD, 51, 3117
  4. Hinshaw, 2012, ApJS
  5. Ilić, 2013, A&A
  6. Jammer, 1961, Concepts of Mass in Classical and Modern Physics
  7. Jammer, 1999, Concepts of Mass in Contemporary Physics and Philosophy
  8. Kitamura, 2013, PhRvD, 87, 027501
  9. Krasnikov, 2000, PhRvD, 62, 084028
  10. Miyazaki, 2006, Proc. SPIE, 6269, 9
  11. Morris, 1988, AmJPh, 56, 395
  12. Morris, 1988, PhRvL, 61, 1446
  13. Nakajima, 2012, PhRvD, 85, 107501
  14. Nandi, 2006, PhRvD, 74, 024020
  15. Oguri, 2010, MNRAS, 405, 2579
  16. Perlick, 2004, PhRvD, 69, 064017
  17. Safonova, 2001, PhRvD, 65, 023001
  18. Schneider, 2006, Gravitational Lensing: Strong, Weak and Micro
  19. Torres, 1998, PhRvD, 58, 123001
  20. Tsukamoto, 2013, PhRvD, 87, 024024
  21. Visser, 1995, Lorentzuan Wormholes: From Einstein to Hawking

Cited by

Sorted by citations

See all 85

Metadata

Authors
Takahashi, R., & Asada, H.
Affiliations
Hirosaki University (JP)
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2013-04-17
Volume
768
Issue
1
Pages
L16
ISSN
  • 2041-8205 (ISSN-L)
  • 2041-8213
DOI
10.1088/2041-8205/768/1/l16
OpenAlex
W2120485639
Cited by
85
References
24
Citations by year
2026: 4 · 2025: 4 · 2024: 7 · 2023: 11 · 2022: 7 · 2021: 9 · 2020: 6 · 2019: 2 · 2018: 12 · 2017: 10 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 1
FWCI
2.34
Type
journal article
Language
en
Open access
Licence
Locations
  • The Astrophysical Journal Letters (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
Japan Society for the Promotion of Science (25287062)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysical Phenomena and Observations
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
Keywords
Ellis wormhole, quasar lensing, number density, exotic compact objects

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