Results 11 to 20 of about 5,123,669 (303)
Stellar Populations in the Galactic Center [PDF]
, 2013 To be published in the Astrophysics and Space Science ...
Bono G. +4 more
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Simulation of the Motion of Stars Escaping from the Galactic Center
Open Astronomy, 2015 Motions of stars escaping from the Galactic center are simulated. It is shown that the Galactic bar reduces the initial velocity needed to escape from the Galaxy.
Shirokova K. S.
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Mid-infrared Extinction toward the Galactic Center
The Astrophysical JournalWe determine the mid-infrared (MIR, ∼5–22 μ m) extinction toward the Galactic center using MIRI/Medium-Resolution Spectrometer (MRS) integral field unit observations of the central 3″ × 3″ region (near 5 μ m) to 7″ × 7″ region (near 22 μ m).
Sebastiano D. von Fellenberg +12 more
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Proceedings of the International Astronomical Union, 2006 AbstractIn the past decade high resolution measurements in the infrared employing adaptive optics imaging on 10m telescopes have allowed determining the three dimensional orbits stars within ten light hours of the compact radio source at the center of the Milky Way.
Genzel, R., Karas, V.
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Symposium - International Astronomical Union, 1981 Recent infrared and radio observations of the Galactic Center are reviewed. For the region between 1 and 100 pc most of the observed phenomena can be explained by a large density of late-type stars, a ring of molecular material, and a number of regions of active star formation. The central parsec (Sgr A) appears to be a unique region of activity in the
Ian Gatley, E. E. Becklin
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THE GALACTIC CENTER: NOT AN ACTIVE GALACTIC NUCLEUS [PDF]
The Astrophysical Journal Supplement Series, 2013 AbstractWe present 10 μm – 35μm Spitzer spectra of the interstellar medium in the central molecular zone (CMZ), the central 210 pc × 60 pc of the Galactic center (GC). We present maps of the CMZ in ionic and H2 emission, covering a more extensive area than earlier spectroscopic surveys in this region.
An, Deokkeun +2 more
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Galactic dynamics feeding the Galactic center [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractWe present the hierarchical structure of the gas and its rapid evolution in the central region of a simulation of the entire Milky Way, run at subparsec resolution. We emphasize the coupling between the kpc-scale dynamics, the molecular ring and the central 5 pc disk feeding the supermassive black hole.
Renaud, Florent +2 more
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The Young Stars in the Galactic Center
The Astrophysical Journal Letters, 2022 Abstract We present a large ∼30″ × 30″ spectroscopic survey of the Galactic Center using the SINFONI IFU at the VLT. Combining observations of the last two decades we compile spectra of over 2800 stars. Using the Bracket-γ absorption lines, we identify 195 young stars, extending the list of known young stars by 79.
Sebastiano D. von Fellenberg +13 more
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THE GALACTIC CENTER ENVIRONMENT [PDF]
Annual Review of Astronomy and Astrophysics, 1996 ▪ Abstract The central half kiloparsec region of our Galaxy harbors a variety of phenomena unique to the central environment. This review discusses the observed structure and activity of the interstellar medium in this region in terms of its inevitable inflow toward the center of the Galactic gravitational potential well.
Morris, Mark, Serabyn, Eugene
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The distance to the Galactic Center [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractOne of the Milky Way's fundamental parameters is the distance of the Sun from the Galactic Center, R0. This article reviews the various ways of estimating R0, placing special emphasis on methods that have become possible recently. In particular, we focus on the geometric distance estimate made possible thanks to observations of individual ...
Gillessen, S. +5 more
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