Results 1 to 10 of about 2,858,112 (243)

The Evolution of Massive Binary Stars [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2023
Massive stars play a major role in the evolution of their host galaxies and serve as important probes of the distant Universe. It has been established that the majority of massive stars reside in close binaries and interact with their companion stars ...
P. Marchant, J. Bodensteiner
semanticscholar   +1 more source

EVOLUTION OF THE STARS AND GAS IN GALAXIES. [PDF]

open access: yes, 2022
Essentially everything of astronomical interest is either part of a galaxy, or from a galaxy, or otherwise relevant to the origin or evolution of galaxies. Diverse examples are that the isotropic composition of meteorites provides clues to the history of
B. Tinsley
semanticscholar   +1 more source

The active lives of stars: A complete description of the rotation and XUV evolution of F, G, K, and M dwarfs [PDF]

open access: yesAstronomy & Astrophysics, 2020
Aims. We study the evolution of the rotation and the high energy X-ray, extreme ultraviolet (EUV), and Ly-α emission for F, G, K, and M dwarfs, with masses between 0.1 and 1.2 M⊙, and provide a freely available set of evolutionary tracks for use in ...
C. Johnstone, M. Bartel, M. Gudel
semanticscholar   +1 more source

The Evolution of Massive Helium Stars, Including Mass Loss [PDF]

open access: yesAstrophysical Journal, 2019
The evolution of helium stars with initial masses in the range 1.6–120 is studied, including the effects of mass loss by winds. These stars are assumed to form in binary systems when their expanding hydrogenic envelopes are promptly lost just after ...
S. Woosley
semanticscholar   +1 more source

Presupernova Evolution and Explosive Nucleosynthesis of Rotating Massive Stars in the Metallicity Range −3 ≤ [Fe/H] ≤ 0 [PDF]

open access: yesAstrophysical Journal Supplement Series, 2018
We present a new grid of presupernova models of massive stars extending in mass between 13 and 120 , covering four metallicities (i.e., [Fe/H] = 0, −1, −2, and −3) and three initial rotation velocities (i.e., 0, 150, and 300 km s−1).
M. Limongi, A. Chieffi
semanticscholar   +1 more source

Code dependencies of pre-supernova evolution and nucleosynthesis in massive stars: Evolution to the end of core helium burning [PDF]

open access: yes, 2014
Massive stars are key sources of radiative, kinetic, and chemical feedback in the universe. Grids of massive star models computed by different groups each using their own codes, input physics choices and numerical approximations, however, lead to ...
Samuel Jones   +7 more
semanticscholar   +1 more source

Magnetic, thermal and rotational evolution of isolated neutron stars [PDF]

open access: yesLiving Reviews in Computational Astrophysics, 2019
The strong magnetic field of neutron stars is intimately coupled to the observed temperature and spectral properties, as well as to the observed timing properties (distribution of spin periods and period derivatives).
J. Pons, D. Viganò
semanticscholar   +1 more source

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

Binary Interaction Dominates the Evolution of Massive Stars [PDF]

open access: yesScience, 2012
Star Partners Stars more massive than eight times the mass of the Sun are rare and short-lived, yet they are fundamentally important because they produce all the heavy elements in the universe, such as iron, silicon, and calcium. Sana et al. (p.
H. Sana   +9 more
semanticscholar   +1 more source

HAZMAT. III. The UV Evolution of Mid- to Late-M Stars with GALEX [PDF]

open access: yes, 2018
Low-mass stars are currently the most promising targets for detecting and characterizing habitable planets in the solar neighborhood. However, the ultraviolet (UV) radiation emitted by such stars can erode and modify planetary atmospheres over time ...
A. Schneider, E. Shkolnik
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy