CoChat
Sign Up
Cited by 106Astrophysical Phenomena and ObservationsGalaxies: Formation, Evolution, PhenomenaStellar, planetary, and galactic studies

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Kinematic and structural analysis of the Minispiral in the Galactic Center from BEAR spectro-imagery

Open access
Paumard, T., Maillard, J.-P., Morris, M.·2004·Astronomy & Astrophysics
DOI 10.1051/0004-6361:20034209
Open this paper in CoChat — free accountOpen PDF

Abstract

Integral field spectroscopy of the inner region of the Galactic Center, over a field of roughly was obtained at 2.06 μm () and 2.16 μm (Brγ) using BEAR, an imaging Fourier Transform Spectrometer, at spectral resolutions respectively of 52.9 km s-1 and 21.3 km s-1, and a spatial resolution of . The analysis of the data was focused on the kinematics of the gas flows, traditionally called the “Minispiral”, concentrated in the neighborhood of the central black hole, Sgr A*. From the decomposition into several velocity components (up to four) of the line profile extracted at each point of the field, velocity features were identified. Nine distinguishable structures are described: the standard Northern Arm, Eastern Arm, Bar, Western Arc, and five additional, coherently-moving patches of gas. From this analysis, the Northern Arm appears not limited, as usually thought, to the bright, narrow North-South lane seen on intensity images, but it consists instead of a weak, continuous, triangular-shaped surface, drawn out into a narrow stream in the vicinity of Sgr A* where it shows a strong velocity gradient, and a bright western rim. The Eastern Arm is split into three components (a Ribbon and a Tip, separated by a cavity, and an elongated feature parallel to the Ribbon: the Eastern Bridge). We also report extinction of some interstellar structures by other components, providing information on their relative position along the line of sight. A system of Keplerian orbits can be fitted to most of the Northern Arm, and the bright rim of this feature can be interpreted in terms of line-of-sight orbit crowding caused by the warping of the flowing surface at the western edge facing Sgr A*. These results lead to a new picture of the gas structures in Sgr A West, in which large-scale gas flows and isolated gas patches coexist in the gravitational field of the central Black Hole. The question of the origin of the ionized gas is addressed and a discussion of the lifetime of these features is presented.

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 · 10.1051/0004-6361:20034209

Cites

38 of 38 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: 6

  1. Christopher, M. H., & Scoville, N. Z. 2003, in Active Galactic Nuclei: from Central Engine to Host Galaxy, ed. S. Collin, F. Combes, & I. Shlosman., ASP Conf. Ser., 290, 389
  2. Morris, M., & Maillard, J. P. 2000, in Imaging the Universe in Three Dimensions, ed. W. van Breugel, & J. Bland-Hawthorn, ASP Conf. Ser., 195, 196
  3. Mouawad, N., Eckart, A., Pfalzner, S., et al. 2004, A&A, submitted [arXiv:astro-ph/0402338] · arXiv
  4. Najarro, 1994, A&A, 285, 573
  5. Paumard, T. 2003, Ph.D. Thesis, Université Pierre et Marie Curie - Paris VI, http://thibaut.paumard.free.fr/These/
  6. Reid, 1993, ARA&A, 31, 345, 10.1146/annurev.aa.31.090193.002021 · DOI

Cited by

Sorted by citations

See all 106

Related

See all

Metadata

Authors
Paumard, T., Maillard, J.-P., & Morris, M.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of California, Los Angeles (US)
ORCID
Venue
Astronomy & Astrophysics
Publisher
EDP Sciences
Published
2004-10
Volume
426
Issue
1
Pages
81-96
ISSN
  • 0004-6361 (ISSN-L)
  • 1432-0746
DOI
10.1051/0004-6361:20034209
OpenAlex
W2106373137
Cited by
106
References
38
Citations by year
2026: 2 · 2025: 1 · 2024: 2 · 2023: 2 · 2021: 2 · 2020: 4 · 2019: 7 · 2018: 7 · 2017: 4 · 2016: 4 · 2015: 4 · 2014: 3 · 2013: 10 · 2012: 6
FWCI
4.52
Type
journal article
Language
en
Open access
Locations
  • Astronomy and Astrophysics (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • HAL (submittedVersion, other-oa)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Science Foundation (9988397)
  • Centre National de la Recherche Scientifique
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysical Phenomena and Observations
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
Keywords
Galactic Center, Sgr A*, ionized gas kinematics, integral field spectroscopy, gas flow, Keplerian orbits, interstellar extinction, Sgr A West, central black holes

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