Results 61 to 70 of about 3,529,940 (309)

A stellar census in globular clusters with MUSE: The contribution of rotation to cluster dynamics studied with 200 000 stars [PDF]

open access: yes, 2017
This is the first of a series of papers presenting the results from our survey of 25 Galactic globular clusters with the MUSE integral-field spectrograph.
S. Kamann   +12 more
semanticscholar   +1 more source

The Stellar Dynamics of Omega Centauri

open access: yes, 1996
The stellar dynamics of Omega Centauri are inferred from the radial velocities of 469 stars measured with CORAVEL (Mayor et al. 1997). Rather than fit the data to a family of models, we generate estimates of all dynamical functions nonparametrically, by ...
Mayor, M., Merritt, David, Meylan, G.
core   +1 more source

A Physicist’s View of Stellar Dynamics: Dynamical Instability of Stellar Systems [PDF]

open access: yesHighlights of Astronomy, 2005
AbstractI argue that the widely adopted framework of stellar dynamics survived since 1940s, is not fitting the current knowledge on non-linear systems. Borrowed from plasma physics when several fundamental features of perturbed non-linear systems were unknown, that framework ignores the difference in the role of perturbations in two different classes ...
openaire   +2 more sources

Relativistic Stellar Dynamics [PDF]

open access: yesSymposium - International Astronomical Union, 1983
Three main areas of relativistic stellar dynamics are reviewed: (a) Relativistic clusters, (b) Systems containing a massive black hole, and (c) Perturbed expanding Universes. The emphasis is on the use of orbit perturbations.
openaire   +1 more source

IMF shape constraints from stellar populations and dynamics from CALIFA [PDF]

open access: yes, 2016
In this Paper, we describe how we use stellar dynamics information to constrain the shape of the stellar initial mass function (IMF) in a sample of 27 early-type galaxies from the CALIFA survey.
M. Lyubenova   +29 more
semanticscholar   +1 more source

Intermediate-mass black hole binary evolution in nuclear star clusters: The effect of the stellar-mass black hole population

open access: yesAstronomy & Astrophysics
Aims. In this study, we investigate the dynamics of intermediate-mass black hole (IMBH) binaries within nuclear star clusters (NSCs) that contain a population of stellar-mass black holes (BHs).
Khan Fazeel Mahmood   +6 more
doaj   +1 more source

A Dynamically Distinct Stellar Population in the Leading Arm of the Sagittarius Stream

open access: yesThe Astrophysical Journal Letters, 2023
We present a chemical and dynamical analysis of the leading arm (LA) and trailing arm (TA) of the Sagittarius (Sgr) stream, as well as for the Sgr dwarf galaxy core (SC), using red giant branch, main-sequence, and RR Lyrae stars from large spectroscopic ...
Gwibong Kang   +3 more
doaj   +1 more source

Binary populations and stellar dynamics in young clusters

open access: yes, 2008
We first summarize work that has been done on the effects of binaries on theoretical population synthesis of stars and stellar phenomena. Next, we highlight the influence of stellar dynamics in young clusters by discussing a few candidate UFOs ...
Belkus   +19 more
core   +1 more source

The dynamics of stellar discs in live dark-matter haloes [PDF]

open access: yes, 2017
Recent developments in computer hardware and software enable researchers to simulate the self-gravitating evolution of galaxies at a resolution comparable to the actual number of stars. Here we present the results of a series of such simulations.
M. Fujii   +3 more
semanticscholar   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

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