Results 31 to 40 of about 324,804 (215)
The spiral structure of our Milky Way Galaxy [PDF]
, 2009 Context. The spiral structure of our Milky Way Galaxy is not yet known. HII regions and giant molecular clouds are the most prominent spiral tracers. Models with 2−4 arms have been proposed to outline the structure of our Galaxy. Aims. Recently, new data
L. Hou, J. Han, W. Shi
semanticscholar +1 more source
CHEMODYNAMICAL SIMULATIONS OF THE MILKY WAY GALAXY [PDF]
The Astrophysical Journal, 2011 43 pages, 20 figures, accepted to ...
Naohito Nakasato +2 more
openaire +4 more sources
Three-Dimensional Distribution of the ISM in the Milky Way Galaxy: I. The H I Disk [PDF]
, 2003 We derived the three-dimensional distribution of H I gas in the Milky Way Galaxy using the latest H I survey data cubes and rotation curves. The distance of the H I gas was determined by the kinematic distance using a rotation curve.
H. Nakanishi, Y. Sofue
semanticscholar +1 more source
The masses of the Milky Way and Andromeda galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 We present a family of robust tracer mass estimators to compute the enclosed mass of galaxy haloes from samples of discrete positional and kinematical data of tracers, such as halo stars, globular clusters and dwarf satellites. The data may be projected positions, distances, line of sight velocities or proper motions.
Laura L. Watkins +3 more
openaire +4 more sources
Modeling of Spiral Structure in a Multi-Component Milky~Way-Like Galaxy [PDF]
Galaxies, 2021 Using recent observational data, we construct a set of multi-component equilibrium models of the disk of a Milky Way-like galaxy. The disk dynamics are studied using collisionless-gaseous numerical simulations, based on the joined integration of the ...
S. Khrapov, A. Khoperskov, V. Korchagin
semanticscholar +1 more source
Fundamental Parameters of the Milky Way Galaxy Based on VLBI Astrometry [PDF]
, 2012 We present analyses to determine the fundamental parameters of the Galaxy based on VLBI astrometry of 52 Galactic maser sources obtained with VERA, VLBA, and EVN.
M. Honma +33 more
semanticscholar +1 more source
Stellar Bars in Isolated Gas-rich Spiral Galaxies Do Not Slow Down
The Astrophysical Journal, 2023 Elongated bar-like features are ubiquitous in galaxies, occurring at the centers of approximately two-thirds of spiral disks in the nearby Universe. Due to gravitational interactions between the bar and the other components of galaxies, it is expected ...
Angus Beane +8 more
doaj +1 more source
CATALOG OF OBSERVED TANGENTS TO THE SPIRAL ARMS IN THE MILKY WAY GALAXY [PDF]
, 2014 From the Sun's location in the Galactic disk, one can use different arm tracers (CO, H i, thermal or ionized or relativistic electrons, masers, cold and hot dust, etc.) to locate a tangent to each spiral arm in the disk of the Milky Way.
J. Vallée
semanticscholar +1 more source
The Astrophysical Journal, 2023 We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with a focus on the halo−disk interface in the local volume.
Deokkeun An +3 more
doaj +1 more source
Short-lived Radionuclides in the Milky Way Galaxy [PDF]
EPJ Web of Conferences, 2023 The short-lived radionuclides (SLRs) have a half-life ≤ 100 Myr. The γ-ray observations and excess abundance of their daughter nuclides in various meteoritic phases confirm the existence of SLRs in the Galaxy and early solar system (ESS), respectively ...
Kaur Tejpreet
doaj +1 more source