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Some of the next articles are maybe not open access.

The Galactic Center

1989
Over the last two decades, the refinement of radio and infrared techniques, as well as work in space, have provided a remarkable amount of information about the center of our galaxy. Much of it fits into a more or less understandable and increasingly well-defined pattern.
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Triaxiality and the Galactic center

AIP Conference Proceedings, 1982
We investigate the properties of triaxial galaxies (those without axial symmetry) relevant to observations and inferred physical processes at the Galactic center. The features we find are: (1) velocity fields which mimic that of a supermassive object at the center and appear to decline more steeply with radius than Keplerian at larger radii, (2) the ...
George Lake, Colin Norman
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The galactic center dynamics

1996
The innermost central part of the Galaxy has very complicated morphology and kinematics. We make an emphasis on the dynamical nature of the ‘mini-spiral’. Two cases are considered: (i) the putative black hole lies at the center of the dense stellar cluster and (ii) it is off the center.
Leo Blitz   +4 more
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Our Galactic Center [PDF]

open access: possible, 1987
The last few years have produced large and rapid advances in our understanding of the galactic center. New information has come via a variety of methods, including high spatial resolution radio and infrared continuum mapping, and line observations in the micron through centimeter wavelength range.
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Massive stars in the galactic center

New Astronomy Reviews, 2000
We review quantitative spectroscopic studies of massive stars in the Galactic Center clusters. Thanks to the impressive evolution of IR detectors an the new generation of line blanketed models for the extended atmospheres of hot stars we are able to accurately derive the physical properties of the massive stars in these clusters.
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The Galactic Center Region

2019
The supermassive black-hole in the center of the Milky Way, located in the radio source Sgr A*, is one of the most interesting astronomical objects (see [126] for an extensive review). It is now in a state of relative inactivity [201] but it might well be a non-stationary source. For instance, there are interesting hints of a much stronger emission few
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