Results 31 to 40 of about 73,052 (295)
Magnetized galactic haloes and velocity lags [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We present an analytic model of a magnetized galactic halo surrounding a Mestel gravitating disc. The magnetic field is taken to be in energy equipartition with the pressure dominant rotating halo gas ({\it not} with the cosmic rays), and the whole system is in a steady state. A more flexible `anisotropic equipartition' model is also explored.
Henriksen, Richard N., Irwin, Judith A.
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Globular Cluster Abundances and What They Can Tell Us About Galaxy Formation [PDF]
, 2009 We review the properties of globular clusters which make them useful for studying the Galactic halo, Galactic chemical evolution, and the early stages of the formation of the Milky Way. We review the evidence that GCs have a chemical inventory similar to
Carretta +4 more
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Parameters of Six Selected Galactic Potential Models
Open Astronomy, 2017 This paper is devoted to the refinement of the parameters of the six three-component (bulge, disk, halo) axisymmetric Galactic gravitational potential models on the basis of modern data on circular velocities of Galactic objects located at distances up ...
Bajkova Anisa, Bobylev Vadim
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GAS CONDENSATION IN THE GALACTIC HALO [PDF]
The Astrophysical Journal, 2012 13 pages, 8 figures, submitted to ...
Joung, M. Ryan +2 more
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The Galactic Halo in Hydrostatic Equilibrium [PDF]
International Astronomical Union Colloquium, 1997 AbstractThe large scale distribution of gas, magnetic field and cosmic rays in the Galaxy is explored. We analyze recent all-sky surveys of HI gas (Leiden/Dwingeloo survey), soft X-ray radiation (ROSAT) and high energy gamma-rays (EGRET > 100 MeV) in combination with the 408 MHz survey.
P. M. W. Kalberla, J. Pietz, J. Kerp
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On the Intrinsic Bias in detecting Caustic Crossings between Galactic Halo and Self-lensing Events in the Magellanic Clouds [PDF]
, 1999 In this paper, we investigate the intrinsic bias in detecting caustic crossings between Galactic halo and self-lensing events in the Magellanic Clouds. For this, we determine the region for optimal caustic-crossing detection in the parameter space of the
Han, Cheongho
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, 2002 We propose the Galactic flare model for the origin of the X-ray gas in the Galactic halo. For this purpose, we examine the magnetic reconnection triggered by Parker instability (magnetic buoyancy instability), by performing the two-dimensional resistive ...
Appenzeller I. +33 more
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Sub-structures in the inner halo of the Milky Way
EPJ Web of Conferences, 2012 We present a spectroscopic study of a sample of 238 RR Lyrae stars, from the QUEST survey, located in the Galactic halo at distances between 4 and 20 kpc from the Sun.
Duffau S. +3 more
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Massive Black Holes in Galactic Halos? [PDF]
Symposium - International Astronomical Union, 1985 We consider the idea that galaxy halos are composed of massive black holes, as a possible resolution of two problems: the composition of dark halos, and the heating of stellar disks. Scattering of disk stars by halo black holes with mass MH, velocity dispersion σH and number density nH causes the stellar velocity dispersion to increase with time t as σ≈
Lacey, C.G., Ostriker, J.P.
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Microlensing in Galactic Halos
Il Nuovo Cimento B, 2007 10 pages, to appear in the proceedings of the I Italian-Pakistan Workshop on Relativistic Astrophysics, which will be published in the Journal Nuovo ...
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