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 accessAbstract
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.
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“The CND(inclination ≈ 70 ◦ ) and ionized streams (inclination ≈ 50 ◦ ) are significantly misaligned with the large scale Galactic plane (inclination = 90 ◦ ) (Jackson et al. 1993; Paumard et al. 2004; Zhao et al. 2009; Genzel et al. 2010), an important issue I will come back to below.”
From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as Paumard et al. 2004
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Ghez, A. M., Duchêne, G., Matthews, K., Hornstein, S. D., Tanner, A., Larkin, J., Morris, M., Becklin, E. E., Salim, S., Kremenek, T., et al. (2003) · The Astrophysical Journal · doi:10.1086/374804 · Cited by 717
Self-citationThe Distance to the Center of the Galaxy
Reid, M. J., Schneps, M. H., Moran, J. S., Gwinn, C. R., Genzel, R., Downes, D., & Rönnäng, B. (1987) · Springer eBooks · doi:10.1007/978-94-009-4782-5_169 · Cited by 712
The Stellar Cusp around the Supermassive Black Hole in the Galactic Center
Genzel, R., Schödel, R., Ott, T., Eisenhauer, F., Hofmann, R., Lehnert, M., Eckart, A., Alexander, T., Sternberg, A., Lenzen, R., et al. (2003) · The Astrophysical Journal · doi:10.1086/377127 · Cited by 485
A Geometric Determination of the Distance to the Galactic Center
Eisenhauer, F., Schdel, R., Genzel, R., Ott, T., Tecza, M., Abuter, R., Eckart, A., & Alexander, T. (2003) · The Astrophysical Journal · doi:10.1086/380188 · Cited by 354
Aperture synthesis observations of the circumnuclear ring in the Galactic center
Guesten, R., Genzel, R., Wright, M. C. H., Jaffe, D. T., Stutzki, J., & Harris, A. I. (1987) · The Astrophysical Journal · doi:10.1086/165355 · Cited by 259
Neutral gas in the central 2 parsecs of the Galaxy
Jackson, J. M., Geis, N., Genzel, R., Harris, A. I., Madden, S., Poglitsch, A., Stacey, G. J., & Townes, C. H. (1993) · The Astrophysical Journal · doi:10.1086/172120 · Cited by 225 · cited 1×
“This analysis cannot provide stringent constraints on the central mass. Figure 8a is quite compatible with the Northern Arm indeed being the ionized surface of a neutral cloud (as suggested by Jackson et al. 1993; Telesco et al. 1996).”
BackgroundLo, K. Y., & Claussen, M. J. (1983) · Nature · doi:10.1038/306647a0 · Cited by 192
Menten, K. M., Reid, M. J., Eckart, A., & Genzel, R. (1997) · The Astrophysical Journal · doi:10.1086/310472 · Cited by 159
Variable and Embedded Stars in the Galactic Center
Ott, T., Eckart, A., & Genzel, R. (1999) · The Astrophysical Journal · doi:10.1086/307712 · Cited by 157
X-ray flares reveal mass and angular momentum of the Galactic Center black hole
Aschenbach, B., Grosso, N., Porquet, D., & Predehl, P. (2004) · Astronomy and Astrophysics · doi:10.1051/0004-6361:20035883 · Cited by 146
Research works printed but not linked: 6
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- 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
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Cited by
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The Galactic Center massive black hole and nuclear star cluster
Genzel, R., Eisenhauer, F., & Gillessen, S. (2010) · Reviews of Modern Physics · doi:10.1103/revmodphys.82.3121 · Cited by 1,236
The Two Young Star Disks in the Central Parsec of the Galaxy: Properties, Dynamics, and Formation
Paumard, T., Genzel, R., Martins, F., Nayakshin, S., Beloborodov, A. M., Levin, Y., Trippe, S., Eisenhauer, F., Ott, T., Gillessen, S., et al. (2006) · The Astrophysical Journal · doi:10.1086/503273 · Cited by 690
Self-citationRelativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole
Do, T., Hees, A., Ghez, A. M., Martinez, G. D., Chu, D. S., Jia, S., Sakai, S., Lu, J. R., Gautam, A. K., O’Neil, K. K., et al. (2019) · Science · doi:10.1126/science.aav8137 · Cited by 486
Self-citationThe Two Young Star Disks in the Central Parsec of the Galaxy: Properties, Dynamics and Formation
Paumard, T., Abuter, R., Tal Alexander, A., Beloborodov, A. M., Cuadra, J., Eisenhauer, F., Genzel, R., Gillessen, S., Levin, Y., Martins, F., et al. (2006) · CERN Document Server (European Organization for Nuclear Research) · Cited by 401
Self-citationStellar processes near the massive black hole in the Galactic center
Alexander, T. (2005) · Physics Reports · doi:10.1016/j.physrep.2005.08.002 · Cited by 302
Metadata
- Authors
- Paumard, T., Maillard, J.-P., & Morris, M.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- University of California, Los Angeles (US)
- Venue
- Astronomy & Astrophysics
- Publisher
- EDP Sciences
- Published
- 2004-10
- Volume
- 426
- Issue
- 1
- Pages
- 81-96
- ISSN
- 0004-6361 (ISSN-L)
- 1432-0746
- 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
- bronze
- doi.org
- 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
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