Results 71 to 80 of about 185,159 (346)

SAURON: An Innovative Look at Early-Type Galaxies [PDF]

open access: yes, 2001
A summary of the SAURON project and its current status is presented. SAURON is a panoramic integral-field spectrograph designed to study the stellar kinematics, gaseous kinematics, and stellar populations of spheroids.
Bacon, R.   +11 more
core   +3 more sources

Jormungandr: A Large Substructure Circling the Milky Way Identified from Gaia DR3 Data

open access: yesThe Astrophysical Journal
We report the discovery of a large substructure in the Milky Way passing through the solar neighborhood, detected in actions $\left({J}_{\phi },{J}_{{\rm{R}}}\right)$ calculated from Gaia DR3 data.
Xianhao Ye   +5 more
doaj   +1 more source

The Kinematics of the Young Stellar Population in the W5 Region of the Cassiopeia OB6 Association: Implication for the Formation Process of Stellar Associations

open access: yesThe Astronomical Journal, 2023
The star-forming region W5 is a major part of the Cassiopeia OB6 association. Its internal structure and kinematics may provide hints of the star formation process in this region.
Beomdu Lim   +5 more
doaj   +1 more source

Kinematics and Dynamics of the Galactic Stellar Halo [PDF]

open access: yesAstrophys.Space Sci. 265 (1999) 123-131, 1998
The structure, kinematics and dynamics of the Galactic stellar halo are reviewed including evidence of substructure in the spatial distribution and kinematics of halo stars. Implications for galaxy formation theory are subsequently discussed; in particular it is argued that the observed kinematics of stars in the outer Galactic halo can be used as an ...
arxiv   +1 more source

Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern   +3 more
wiley   +1 more source

Spectroscopic evidence of distinct stellar populations in the counter-rotating stellar disks of NGC 3593 and NGC 4550

open access: yes, 2012
We present the results of integral-field spectroscopic observations of the two disk galaxies NGC 3593 and NGC 4550 obtained with VIMOS/VLT. Both galaxies are known to host 2 counter-rotating stellar disks, with the ionized gas co-rotating with one of ...
A. Pizzella   +71 more
core   +1 more source

Kinematic and stellar population properties of the counter-rotating components in the S0 galaxy NGC 1366 [PDF]

open access: yes, 2017
Context. Many disk galaxies host two extended stellar components that rotate in opposite directions. The analysis of the stellar populations of the counter-rotating components provides constraints on the environmental and internal processes that drive ...
Buson, L. M.   +9 more
core   +2 more sources

Stellar kinematics in the Galactic center

open access: yesThe Astrophysical Journal, 1989
The observations of the stellar kinematics in the central 8 pc of the Galaxy are presented. It is shown that the spectroscopy of the 2.3 microns CO absorption feature, in late type stars, yields the stellar velocity dispersion and the average stellar radial velocity as a function of galactocentric distance.
K. Sellgren   +3 more
openaire   +2 more sources

Mg II/CIV Kinematics vs. Stellar Kinematics in Galaxies [PDF]

open access: yes, 2003
6 pages; 3 figures; to appear in the proceedings for "The IGM/Galaxy Connection" conference held in Boulder, Colorado, August 8-10 ...
Churchill, Chris, Steidel, Chuck
openaire   +6 more sources

Structure and kinematics of edge-on galaxy discs - IV. The kinematics of the stellar discs [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2005
Accepted for publication by the Monthly Notices of the R.A ...
M Kregel, P. C. van der Kruit
openaire   +4 more sources

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