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Annals of the New York Academy of Sciences, 1995
ABSTRACTThe Galactic center is a superb laboratory of modern astrophysics where astronomers can study at unprecedented spatial resolution and across the entire electromagnetic spectrum physical processes that may also happen at the cores of other galaxies. Following a brief review of the phenomena observed in the central few hundred parsecs, we discuss
R. Genzel, A. Eckart, A. Krabbe
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ABSTRACTThe Galactic center is a superb laboratory of modern astrophysics where astronomers can study at unprecedented spatial resolution and across the entire electromagnetic spectrum physical processes that may also happen at the cores of other galaxies. Following a brief review of the phenomena observed in the central few hundred parsecs, we discuss
R. Genzel, A. Eckart, A. Krabbe
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The Galactic Center large program
AIP Conference Proceedings, 2008We report a multi‐epoch and multi‐wavelength observation campaign of the Galactic Center. Some results are first presented before stressing more specifically the 8.6 micron observations obtained with VLT/VISIR used in burst mode during three nights in July 2007.
X. Haubois +9 more
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AIP Conference Proceedings, 1990
A brief review of galactic center observations, from the radio to gamma rays, is presented. There is evidence for black holes in the central region of the Galaxy at all wavelengths, but the observations are not unambiguous and a single massive object at the dynamic center may not explain the data at all wavelengths. Requirements for future observations
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A brief review of galactic center observations, from the radio to gamma rays, is presented. There is evidence for black holes in the central region of the Galaxy at all wavelengths, but the observations are not unambiguous and a single massive object at the dynamic center may not explain the data at all wavelengths. Requirements for future observations
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2017
This chapter examines Nigel Walmsley's space odyssey in In the Ocean of Night and Across the Sea of Suns, which span the dates from 1999 to 2061. By the end of the first novel, Nigel has discovered a cosmic struggle between machine intelligence and organic life that will soon engulf Earth. Through several contacts with alien artifacts and entities that
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This chapter examines Nigel Walmsley's space odyssey in In the Ocean of Night and Across the Sea of Suns, which span the dates from 1999 to 2061. By the end of the first novel, Nigel has discovered a cosmic struggle between machine intelligence and organic life that will soon engulf Earth. Through several contacts with alien artifacts and entities that
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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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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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2017
This chapter examines the epic scope of Gregory Benford's series of novels commonly called the Galactic Center saga. The works that make up the Galactic Center series span nineteen years of Benford's career. They encompass as well a changing landscape of science fiction (SF), in which space adventure, once central to the genre, becomes a near relic ...
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This chapter examines the epic scope of Gregory Benford's series of novels commonly called the Galactic Center saga. The works that make up the Galactic Center series span nineteen years of Benford's career. They encompass as well a changing landscape of science fiction (SF), in which space adventure, once central to the genre, becomes a near relic ...
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1988
Deciphering the morphology and kinematics of the galactic center constitutes one of the enduring programs of the study of galactic structure. This is especially true for radio astronomy, which was the first of the astronomical sciences to penetrate the mysteries of the galactic center, but radio-frequency observations alone cannot provide more than a ...
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Deciphering the morphology and kinematics of the galactic center constitutes one of the enduring programs of the study of galactic structure. This is especially true for radio astronomy, which was the first of the astronomical sciences to penetrate the mysteries of the galactic center, but radio-frequency observations alone cannot provide more than a ...
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Publications of the Astronomical Society of Japan, 1985
Abstract Radio continuum observations of the central region of our Galaxy have revealed an off-plane, Ω-shaped lobe (the galactic center lobe: GCL) with a diameter 200 pc emerging from the nuclear disk toward the positive galactic latitude. The radio spectrum is flat, indicating either a thermal gas origin or synchrotron radiation due to
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Abstract Radio continuum observations of the central region of our Galaxy have revealed an off-plane, Ω-shaped lobe (the galactic center lobe: GCL) with a diameter 200 pc emerging from the nuclear disk toward the positive galactic latitude. The radio spectrum is flat, indicating either a thermal gas origin or synchrotron radiation due to
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