Results 11 to 20 of about 1,499,205 (291)
Binary sdB Stars with Massive Compact Companions [PDF]
, 2008 8 pages, 3 ...
Geier, S. +4 more
core +9 more sources
Be binary stars with hot, compact companions [PDF]
, 2003 In this study the importance of close binary evolution for Be star formation was investigated. The Be star 59 Cygni was confirmed to be an evolved binary with a sdO companion. The companion was confirmed by a weak helium II absorption. Orbital elements and stellar masses were determined.
Maintz, Monika
openaire +3 more sources
Modelling and observations of molecules in discs around young stars [PDF]
, 2013 This thesis contains a study of molecules within circumstellar discs around young stars. Firstly, the chemistry of a disc around a young, Class 0 protostar is modelled.
Ilee, John David
core +6 more sources
Orbital parameters estimation for compact binary stars [PDF]
Most stars in the Galaxy are found in multiple systems of two or more stars orbiting together. Two stars orbiting around their centre of mass are called binary stars. In close binary stars, the evolution of one star affects its companion and evolutionary expansion of one star allows for mass exchange between the components.
Longa-Peña, Penélope Alejandra
openaire +1 more source
LTD064402+245919, Compact Binary or Subgiant with Red Star Eclipsing Binary?
Research Notes of the AAS, 2022 Abstract Recently, a single-line spectroscopic binary, LTD064402+245919, has been discovered by Yang et al. Using data from LAMOST and ZTF, the unseen companion is estimated to have a mass of 1–3 M ⊙, orbiting a subgiant with orbital period of 14.50 days, making it a good compact binary candidate without X-ray emission.
Jincheng Guo, Cheng Liu
openaire +2 more sources
Population Properties of Neutron Stars in the Coalescing Compact Binaries
The Astrophysical Journal, 2021 Abstract We perform a hierarchical Bayesian inference to investigate the population properties of the coalescing compact binaries involving at least one neutron star (NS). With the current gravitational-wave (GW) observation data, we can rule out none of the double Gaussian, single Gaussian, and uniform NS mass distribution models ...
Yin-Jie 银杰 Li 李 +6 more
openaire +2 more sources
Evolution of binary stars in multiple-population globular clusters – II. Compact binaries [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We present the results of a survey of N-body simulations aimed at exploring the evolution of compact binaries in multiple-population globular clusters.We show that as a consequence of the initial differences in the structural properties of the first-generation (FG) and the second-generation (SG) populations and the effects of dynamical processes on ...
Hong, Jongsuk +5 more
openaire +3 more sources
Probing the composition of sub-millisecond rotating compact stars by r-modes instability [PDF]
, 2012 We investigate the implications of the r-modes instability on the composition of a compact star rotating at a sub-millisecond period. In particular, the only viable astrophysical scenario for such an object, wich might present inside the Low Mass X-ray ...
Giuseppe Pagliara +3 more
core +1 more source
Gravitoastronomy with neutron stars [PDF]
, 2004 Recent advances in gravitational wave detectors mean that we can start to make astrophysically important statements about the physics of neutron stars based on observed upper limits to their gravitational luminosity.
Woan, G., Graham Woan
core +1 more source
Wide binary stars in the Galactic field : a statistical approach [PDF]
, 2010 This thesis focuses on the statistical properties of wide binary (WB) star systems in the Galactic field. With projected separations larger than 200 AU and, consequently, having very low binding energies, WB are sensitive probes of the Galactic ...
Longhitano, Marco
core +1 more source