Results 111 to 120 of about 1,111,199 (224)

Stellar Populations of the Galactic Disk: Metallicity Distribution and Kinematics

Open Astronomy, 2003
Metallicities and distances have been determined from Vilnius photometry for an in situ sample of nearly 650 stars in eight proper-motion fields at high Galactic latitudes.
Bartašiūtė S., Aslan Z., Boyle R. P., Kharchenko N. V., Ossipkov L. P., Sperauskas J.   +5 more
doaj   +1 more source

Kinematics of Metal-poor Stars in the Galaxy. III. Formation of the Stellar Halo and Thick Disk as Revealed from a Large Sample of Nonkinematically Selected Stars [PDF]

, 2000
Masashi Chiba, Timothy C. Beers
openalex   +1 more source

Mapping the Asymmetric Thick Disk: II Distance, Size and Mass of the Hercules Thick Disk Cloud

, 2011
The Hercules Thick Disk Cloud (Larsen et al. 2008) was initially discovered as an excess in the number of faint blue stars between quadrants 1 and 4 of the Galaxy.
Abazajian, Belokurov, Benjamin, Bensby, Carollo, Debattista, Dehnen, Dehnen, Gilmore, Humphreys, Ibata, Ibata, Jeffrey A. Larsen, Juan E. Cabanela, Jurić, Larsen, Larsen, Larsen, Larsen, Larsen, Law, Lopez-Corredoira, Martínez-Delgado, Newberg, Newberg, Parker, Parker, Raboud, Roberta M. Humphreys, Rodgers, Schlegel, Vivas, Williams, Wyse, Yanny   +34 more
core   +1 more source

Comparison of magnetized thick disks around black holes and boson stars

European Physical Journal C: Particles and Fields
Boson stars are considered as promising candidates for black hole mimickers. Similar to other compact objects they can form accretion disks around them.
Kristian Gjorgjieski, Jutta Kunz, Petya Nedkova   +2 more
doaj   +1 more source

Chaos around the superposition of a monopole and a thick disk [PDF]

, 2000
Alberto Saa
openalex   +1 more source

The Age–Velocity Dispersion Relations of the Galactic Disk as Revealed by the LAMOST-Gaia Red Clump Stars

The Astrophysical Journal
Using nearly 230,000 red clump stars selected from LAMOST and Gaia, we conduct a comprehensive analysis of the stellar age–velocity dispersion relations (AVRs) for various disk populations, within 5.0 ≤ R ≤ 15.0 kpc and ∣ Z ∣ ≤ 3.0 kpc.
Weixiang Sun, Han Shen, Biwei Jiang, Xiaowei Liu   +3 more
doaj   +1 more source

Winds and Disk Turbulence Exert Equal Torques on Thick Magnetically Arrested Disks

The Astrophysical Journal
The conventional accretion disk lore is that magnetized turbulence is the principal angular momentum transport process that drives accretion. However, when dynamically important large-scale magnetic fields thread an accretion disk, they can produce mass ...
Vikram Manikantan, Nicholas Kaaz, Jonatan Jacquemin-Ide, Gibwa Musoke, Koushik Chatterjee, Matthew Liska, Alexander Tchekhovskoy   +6 more
doaj   +1 more source

Some Photometric Characteristics of Population II Orbital Visual Binary Stars

Open Astronomy, 2003
A MV ,B−V diagram for metal-deficient, kinematically selected thick disk and halo visual binary stars with known orbits is presented. The magnitude differences Δm between the components are analyzed.
Bartkevičius A., Gudas A.
doaj   +1 more source

CHEMICAL EVOLUTION OF THE GALAXY: THE G-DWARF PROBLEM AND RADIOACTIVE CHRONOLOGY REVISITED TAKING ACCOUNT OF THE THICK DISK [PDF]

, 2001
B. E. J. Pagel
openalex   +1 more source

Chemical composition of red horizontal branch stars in the thick disk of the Galaxy [PDF]

, 2001
G. Tautvaišienė, B. Edvardsson, I. Tuominen, I. Ilyin   +3 more
openalex   +1 more source