Results 31 to 40 of about 2,697 (212)
M54 + SAGITTARIUS = ω CENTAURI [PDF]
The Astrophysical Journal, 2010 We derive homogeneous abundances of Fe, O, Na and alpha-elements from high resolution FLAMES spectra for 76 red giant stars in NGC 6715 (M 54) and for 25 red giants in the surrounding nucleus of the Sagittarius (Sgr) dwarf galaxy. Our main findings are that: (i) we confirm that M 54 shows intrinsic metallicity dispersion, ~0.19 dex r.m.s.; (ii) when ...
Elisa Carretta +11 more
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The Parallax and 3D Kinematics of Water Masers in the Massive Star-forming Region G034.43+0.24
The Astrophysical Journal, 2023 We report a measurement of the trigonometric parallax of 22 GHz water masers in the massive star-forming region G034.43+0.24 as part of the Bar and Spiral Structure Legacy Survey using the Very Long Baseline Array.
Xiaofeng Mai +14 more
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Sagittarius A* in the Infrared [PDF]
Journal of Physics: Conference Series, 2012 The central black hole of the Milky Way, Sagittarius A* (SgrA*) is, in terms of Eddington luminosity, the weakest accreting object of its class accessible to detailed observations. It is therefore key to the refinement of theoretical models of radiatively inefficient accretion.
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, 2018 Published as part of Muhammad, Amira Aqilah, Tan, Ming Kai, Abdullah, Nurul Ashikin, Azirun, Mohammad Sofian, Bhaskar, Dhaneesh & Skejo, Josip, 2018, An annotated catalogue of the pygmy grasshoppers of the tribe Scelimenini Bolívar, 1887 (Orthoptera: Tetrigidae) with two new Scelimena species from the Malay Peninsula and Sumatra, pp.
Muhammad, Amira Aqilah +5 more
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The α-element knee of the Sagittarius stream [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 6 pages, 3 ...
T. J. L. de Boer +3 more
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Radio images of Sagittarius. I - Overview, Sagittarius D and Sagittarius E
The Astrophysical Journal Supplement Series, 1992 The Sagittarius source complex (sources Sgr A-E) was mapped in the radio continuum at 1616 MHz with various combinations of the VLA B, C, and D configurations, showing the detailed structure of many sources for the first time. An overview of that survey and of the kinematics of neutral gas in the complex is given.
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, 2019 Published as part of Duan, Yani, Zhang, Yating & Dietrich, Christopher H., 2019, Six new species of Stenometopiini (Hemiptera: Cicadellidae: Deltocephalinae) with redescription of additional species and new distributional records, pp.
Duan, Yani +2 more
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Distribution and Kinematics of Classical Cepheids in the Galactic Outer Ring
Open Astronomy, 2015 The existence of an outer ring in the Galaxy can explain the kinematics of OB associations in the Perseus and Sagittarius stellar-gas complexes. Moreover, it can also explain the orientation of the Carina arm with respect to the major axis of the bar. We
Mel’nik A. M. +4 more
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Observing—and Imaging—Active Galactic Nuclei with the Event Horizon Telescope
Galaxies, 2016 Originally developed to image the shadow region of the central black hole in Sagittarius A* and in the nearby galaxy M87, the Event Horizon Telescope (EHT) provides deep, very high angular resolution data on other active galactic nucleus (AGN) sources ...
Vincent L. Fish +9 more
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The last breath of the Sagittarius dSph [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACTWe use the astrometric and photometric data from Gaia Data Release 2 and line-of-sight velocities from various other surveys to study the 3D structure and kinematics of the Sagittarius dwarf galaxy. The combination of photometric and astrometric data makes it possible to obtain a very clean separation of Sgr member stars from the Milky Way ...
Eugene Vasiliev +2 more
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