Results 21 to 30 of about 980,367 (312)
MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): PLANETS, OSCILLATIONS, ROTATION, AND MASSIVE STARS [PDF]
, 2013 We substantially update the capabilities of the open source software package Modules for Experiments in Stellar Astrophysics (MESA), and its one-dimensional stellar evolution module, MESAstar.
B. Paxton +10 more
semanticscholar +1 more source
Evidence for quark-matter cores in massive neutron stars [PDF]
Nature Physics, 2019 The theory governing the strong nuclear force—quantum chromodynamics—predicts that at sufficiently high energy densities, hadronic nuclear matter undergoes a deconfinement transition to a new phase of quarks and gluons1.
Eemeli Annala +4 more
semanticscholar +1 more source
On the Formation of Massive Stars [PDF]
The Astrophysical Journal, 2002 We calculate numerically the collapse of slowly rotating, non-magnetic, massive molecular clumps, which conceivably could lead to the formation of massive stars. Because radiative acceleration on dust grains plays a critical role in the clump's dynamical evolution, we utilize a wavelength-dependent radiation transfer and a three component dust model ...
Yorke, Harold W., Sonnhalter, Cordula
openaire +2 more sources
Eta Carinae: The Dissipating Occulter Is an Extended Structure
The Astrophysical Journal, 2023 Previous Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) longslit observations of Eta Carinae ( η Car) identified numerous absorption features in both the stellar spectrum, and in the adjacent nebular spectra, along our line of ...
Theodore R. Gull +13 more
doaj +1 more source
Multiplicity of Massive Stars [PDF]
Symposium - International Astronomical Union, 2001 We discuss the observed multiplicity of massive stars and implications on theories of massive star formation. After a short summary of the literature on massive star multiplicity, we focus on the O-and B-type stars in the Orion Nebula Cluster, which constitute a homogenous sample of very young massive stars.
Preibisch, Thomas +2 more
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Yellow Supergiants and Post-red Supergiant Evolution in the Large Magellanic Cloud
The Astronomical Journal, 2023 The empirical evidence for an upper-mass limit for the red supergiant (RSG) progenitors of the Type II-P SNe at about 18 MSun, raises questions about the fate of the most luminous, most massive RSGs.
Roberta M. Humphreys +2 more
doaj +1 more source
Presupernova Evolution and Explosive Nucleosynthesis of Rotating Massive Stars in the Metallicity Range −3 ≤ [Fe/H] ≤ 0 [PDF]
Astrophysical 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
On the formation of massive stars [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We present a model for the formation of massive ($M > 10 M_\odot$) stars through accretion-induced collisions in the cores of embedded dense stellar clusters. This model circumvents the problem of accreting onto a star whose luminosity is sufficient to reverse the infall of gas.
Bonnell, Ian A. +2 more
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The Origin of Massive Stars: The Inertial-inflow Model [PDF]
Astrophysical Journal, 2019 We address the problem of the origin of massive stars, namely the origin, path, and timescale of the mass flows that create them. Based on extensive numerical simulations, we propose a scenario where massive stars are assembled by large-scale, converging,
P. Padoan +4 more
semanticscholar +1 more source
Massive Stars and Their Supernovae [PDF]
, 2010 Massive stars and their supernovae are prominent sources of radioactive isotopes, the observations of which thus can help to improve our astrophysical models of those. Our understanding of stellar evolution and the final explosive endpoints such as supernovae or hypernovae or gamma-ray bursts relies on the combination of magneto-hydrodynamics, energy ...
Thielemann, F. +3 more
openaire +3 more sources