Results 41 to 50 of about 1,454,993 (340)

Properties of the Binary Neutron Star Merger GW170817 [PDF]

open access: yes, 2018
On August 17, 2017, the Advanced LIGO and Advanced Virgo gravitational-wave detectors observed a low-mass compact binary inspiral. The initial sky localization of the source of the gravitational-wave signal, GW170817, allowed electromagnetic ...
The Ligo Scientific Collaboration   +499 more
semanticscholar   +1 more source

Intermediate-mass Black Holes from High Massive-star Binary Fractions in Young Star Clusters [PDF]

open access: yesAstrophysical Journal, 2020
Black holes formed in dense star clusters, where dynamical interactions are frequent, may have fundamentally different properties than those formed through isolated stellar evolution.
E. Gonz'alez   +7 more
semanticscholar   +1 more source

Binary black holes in young star clusters: the impact of metallicity [PDF]

open access: yes, 2020
Young star clusters are the most common birth-place of massive stars and are dynamically active environments. Here, we study the formation of black holes (BHs) and binary black holes (BBHs) in young star clusters, by means of 6000 N-body simulations ...
Ugo N Di Carlo   +11 more
semanticscholar   +1 more source

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. II. UV, Optical, and Near-infrared Light Curves and Comparison to Kilonova Models [PDF]

open access: yes, 2017
We present UV, optical, and near-infrared (NIR) photometry of the first electromagnetic counterpart to a gravitational wave source from Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo, the binary neutron star merger GW170817 ...
P. Cowperthwaite   +144 more
semanticscholar   +1 more source

Period Change of the Contact Binary AH Tauri [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
New BVRI photometric observations of the contact binary AH Tau were performed with the 61 cm reflector and a 2K CCD camera at the Sobaeksan Optical Astronomy Observatory during seven nights from September to December, 2001. A total of 144 times of minima
Dongjoo Lee   +5 more
doaj   +1 more source

Binary Neutron Star Mergers After GW170817

open access: yesFrontiers in Astronomy and Space Sciences, 2020
The first combined detection of gravitational waves and electromagnetic signals from a binary neutron star (BNS) merger in August 2017 (an event named GW170817) represents a major landmark in the ongoing investigation of these extraordinary systems.
Riccardo Ciolfi, Riccardo Ciolfi
doaj   +1 more source

Potential Importance of Binary Evolution in UV-Optical Spectral Fitting of Early-Type Galaxies

open access: yes, 2013
Binaries are very common in galaxies, and more than half of Galactic hot subdwarf stars, which are thought as a possible origin of UV-upturn of old stellar populations, are found in binaries.
Chen, Li   +4 more
core   +1 more source

How THC works: Explaining ligand affinity for, and partial agonism of, cannabinoid receptor 1

open access: yesiScience
Summary: Interaction with cannabinoid receptor 1 (CB1) partially determines the bioactivity of the phytocannabinoids. Consequently, there has also been significant effort directed toward preparing synthetic cannabinoids with either enhanced agonistic or ...
Farsheed Shahbazi-Raz   +3 more
doaj   +1 more source

Dynamical population synthesis: Constructing the stellar single and binary contents of galactic field populations

open access: yes, 2011
[abridged] The galactic field's late-type stellar single and binary population is calculated on the supposition that all stars form as binaries in embedded star clusters.
Bate   +74 more
core   +1 more source

PRELIMINARY RESULTS OF MODELING OF LIGHT CURVES OF WW AND

open access: yesOdessa Astronomical Publications, 2017
In this work we present the preliminary results of modeling of Olson’s lybv light curves of an Algol-type binary WW And. A model of a binary star containing an accretion disk around the primary star is deployed.
S. Zola
doaj   +1 more source

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