An Axisymmetric Distribution Function for the Galactic Bulge [PDF]
, 1994 We describe a method for parameterizing two-integral distribution functions, based on triangular tesselations of the integral plane. We apply the method to the axisymmetric isotropic rotator model for the Galactic bulge of Kent~(1992), and compare the ...
Kuijken, Konrad
core +3 more sources
Spatially Resolved Stellar Kinematics from LEGA-C: Increased Rotational Support in z ∼ 0.8 Quiescent Galaxies [PDF]
, 2018 We present stellar rotation curves and velocity dispersion profiles for 104 quiescent galaxies at z = 0.6–1 from the Large Early Galaxy Astrophysics Census (LEGA-C) spectroscopic survey.
R. Bezanson +20 more
semanticscholar +1 more source
Discovery of the Magellanic Stellar Stream Out to 100 kpc
The Astrophysical Journal, 2023 The Magellanic Stream (MS)—an enormous ribbon of gas spanning 140° of the southern sky trailing the Magellanic Clouds—has been exquisitely mapped in the five decades since its discovery.
Vedant Chandra +9 more
doaj +1 more source
Stellar kinematics across the Hubble sequence in the CALIFA survey: general properties and aperture corrections [PDF]
, 2016 We present the stellar kinematic maps of a large sample of galaxies from the integral-field spectroscopic survey CALIFA. The sample comprises 300 galaxies displaying a wide range of morphologies across the Hubble sequence, from ellipticals to late-type ...
J. Falcón-Barroso +39 more
semanticscholar +1 more source
Wrinkles in Time. I. Rapid Rotators Found in High-eccentricity Orbits
The Astrophysical Journal, 2023 Recent space-based missions have ushered in a new era of observational astronomy, where high-cadence photometric light curves for thousands to millions of stars in the solar neighborhood can be used to test and apply stellar age-dating methods, including
Rayna Rampalli +4 more
doaj +1 more source
THE SAMI GALAXY SURVEY: REVISITING GALAXY CLASSIFICATION THROUGH HIGH-ORDER STELLAR KINEMATICS [PDF]
, 2016 Recent cosmological hydrodynamical simulations suggest that integral field spectroscopy can connect the high-order stellar kinematic moments h3 (∼skewness) and h4 (∼kurtosis) in galaxies to their cosmological assembly history.
J. V. D. Sande +39 more
semanticscholar +1 more source
Kinematic and stellar population properties of the counter-rotating components in the S0 galaxy NGC 1366 [PDF]
, 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
IN-SYNC. V. Stellar Kinematics and Dynamics in the Orion A Molecular Cloud [PDF]
, 2017 The kinematics and dynamics of young stellar populations enable us to test theories of star formation. With this aim, we continue our analysis of the SDSS-III/APOGEE IN-SYNC survey, a high-resolution near-infrared spectroscopic survey of young clusters ...
N. da Rio +16 more
semanticscholar +1 more source
The MUSE Hubble Ultra Deep Field Survey: V. Spatially resolved stellar kinematics of galaxies at redshift $0.2\lesssim z \lesssim 0.8$ [PDF]
, 2017 We present spatially resolved stellar kinematic maps, for the first time, for a sample of 17 intermediate redshift galaxies (0 ...
A. Guerou +13 more
semanticscholar +1 more source
When the Jeans Do Not Fit: How Stellar Feedback Drives Stellar Kinematics and Complicates Dynamical Modeling in Low-mass Galaxies [PDF]
, 2016 In low-mass galaxies, stellar feedback can drive gas outflows that generate non-equilibrium fluctuations in the gravitational potential. Using cosmological zoom-in baryonic simulations from the Feedback in Realistic Environments project, we investigate ...
K. El-Badry +10 more
semanticscholar +1 more source