Results 21 to 30 of about 1,661,126 (377)

KMOS view of the Galactic Centre I. Young stars are centrally concentrated [PDF]

open access: yes, 2015
The Galactic centre hosts a crowded, dense nuclear star cluster with a half-light radius of 4 pc. Most of the stars in the Galactic centre are cool late-type stars, but there are also >100 hot early-type stars in the central parsec of the Milky Way ...
de Zeeuw, P. T.   +9 more
core   +3 more sources

The first gravitational-wave source from the isolated evolution of two stars in the 40–100 solar mass range [PDF]

open access: yesNature, 2016
The merger of two massive (about 30 solar masses) black holes has been detected in gravitational waves. This discovery validates recent predictions that massive binary black holes would constitute the first detection. Previous calculations, however, have
K. Belczynski   +3 more
semanticscholar   +1 more source

The alignment is in their stars: on the spin-alignment of stars in star clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2018
ABSTRACT We simulate star formation in two molecular clouds extracted from a larger disc-galaxy simulation with a spatial resolution of ∼0.1 pc, one exiting a spiral arm dominated by compression, and another in an inter-arm region more strongly affected by galactic shear.
Rey-Raposo, Ramon, Read, Justin I
openaire   +5 more sources

Bp stars in OrionOB1 association [PDF]

open access: yes, 2013
A total of 85 CP stars of various types are identified among 814 members of the Orion OB1 association. We selected 59 Bp stars, which account for 13.4% of the total number of B type stars in the association.
Romanyuk, Iosif, Yakunin, Ilya
core   +1 more source

Masses, Radii, and the Equation of State of Neutron Stars [PDF]

open access: yes, 2016
We summarize our current knowledge of neutron-star masses and radii. Recent instrumentation and computational advances have resulted in a rapid increase in the discovery rate and precise timing of radio pulsars in binaries in the past few years, leading ...
F. Ozel, P. Freire
semanticscholar   +1 more source

On stars and Steiner stars. II [PDF]

open access: yesProceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms, 2009
A {\em Steiner star} for a set $P$ of $n$ points in $\RR^d$ connects an arbitrary center point to all points of $P$, while a {\em star} connects a point $p\in P$ to the remaining $n-1$ points of $P$. All connections are realized by straight line segments. Fekete and Meijer showed that the minimum star is at most $\sqrt{2}$ times longer than the minimum
Guangwu Xu   +2 more
openaire   +2 more sources

Health literacy as a challenge for health education

open access: yesSHS Web of Conferences, 2018
Scientific literature demonstrates a well-established correlation between education and health literacy; education and health outcomes; health literacy and health outcomes. Health literacy has a mediating role between education and health.
Stars I.
doaj   +1 more source

A grid of MARCS model atmospheres for late-type stars. I. Methods and general properties [PDF]

open access: yes, 2008
Context. In analyses of stellar spectra and colours, and for the analysis of integrated light from galaxies, a homogeneous grid of model atmospheres of late-type stars and corresponding flux spectra is needed. Aims.
B. Gustafsson   +5 more
semanticscholar   +1 more source

From hadrons to quarks in neutron stars: a review [PDF]

open access: yesReports on progress in physics. Physical Society, 2017
In recent years our understanding of neutron stars has advanced remarkably, thanks to research converging from many directions. The importance of understanding neutron star behavior and structure has been underlined by the recent direct detection of ...
G. Baym   +5 more
semanticscholar   +1 more source

On stars and Steiner stars

open access: yesDiscrete Optimization, 2009
AbstractA Steiner star for a set P of n points in Rd connects an arbitrary point in Rd to all points of P, while a star connects one of the points in P to the remaining n−1 points of P. All connections are realized by straight line segments. Let the length of a graph be the total Euclidean length of its edges.
Csaba D. Tóth   +2 more
openaire   +2 more sources

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