Results 31 to 40 of about 1,454,993 (340)
Binary star formation and the outflows from their discs [PDF]
, 2017 We carry out magnetohydrodynamical simulations with FLASH of the formation of a single, a tight binary ($a\sim$2.5 AU) and a wide binary star ($a\sim$45 AU).
R. Kuruwita, C. Federrath, M. Ireland
semanticscholar +1 more source
A Search for Exoplanets in Short-Period Binary Star Systems [PDF]
Journal of Astronomy and Space Sciences, 2012 This paper reports the progress of a search for exoplanets with S-type orbits in short-period binary star systems. The selected targets have stellar orbital periods of just a few days. These systems are eclipsing binaries so that exoplanet transits, if
Ronald Kaitchuck +2 more
doaj +1 more source
K2-136: A Hyades Binary Star with a Neptune-sized Planet [PDF]
, 2017 We report the discovery of a Neptune-size planet (Rp = 3.0 Re) in the Hyades Cluster. The host star is in a binary system, comprising a K5V star and M7/8V star with a projected separation of 40 AU.
D. Ciardi +16 more
semanticscholar +1 more source
Binary Gravitational Perturbations and Their Influence on the Habitability of Circumstellar Planets
Frontiers in Astronomy and Space Sciences, 2021 In order to assess the habitability of planets in binary star systems, not only astrophysical considerations regarding stellar and atmospheric conditions are needed, but orbital dynamics and the architecture of the system also play an important role. Due
Elke Pilat-Lohinger, Ákos Bazsó
doaj +1 more source
Evidence for a planetary mass third body orbiting the binary star KIC 5095269 [PDF]
, 2017 In this paper, we report the evidence for a planetary mass body orbiting the close binary star KIC 5095269. This detection arose from a search for eclipse timing variations among the more than 2,000 eclipsing binaries observed by Kepler.
A. K. Getley +3 more
semanticscholar +1 more source
The cosmic merger rate density of compact objects: impact of star formation, metallicity, initial mass function, and binary evolution [PDF]
, 2020 We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity evolution, common ...
F. Santoliquido +4 more
semanticscholar +1 more source
Neutron Star Mergers and the Quark Matter Equation of State [PDF]
EPJ Web of Conferences, 2022 As neutron stars merge they can approach very high nuclear density. Here, we summarized recent results for the evolution and gravitational wave emission from binary-neutron star mergers using a a variety of nuclear equations of state with and without a ...
Mathews Grant J. +3 more
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The Birth of a Massive First-star Binary [PDF]
Astrophysical Journal, 2020 We study the formation of massive Population III binary stars using a newly developed radiation hydrodynamics code with the adaptive mesh refinement and adaptive ray-tracing methods.
K. Sugimura +4 more
semanticscholar +1 more source
Discovery of a bright eclipsing cataclysmic variable [PDF]
, 2007 We report on the discovery of J0644+3344, a bright deeply eclipsing cataclysmic variable (CV) binary. Spectral signatures of both binary components and an accretion disk can be seen at optical wavelengths.
Augusteijn +21 more
core +2 more sources
Iraqi Journal of Physics, 2019 In this research the change in the distance of the two stars in two binary star systems (13.6+8)M8and (13+10)M8 was studied, through the calculations the value (rate of mass transfer) of the two phases of dynamical stages of mass which are mass loss ...
Mohammed R. Abdulameer
doaj +1 more source