Degeneracy in Studying the Supranuclear Equation of State and Modified Gravity with Neutron Stars
, 2019 It is generally acknowledged that an extrapolation in physics from a well-known scale to an unknown scale is perilous. This prevents us from using laboratory experience to gain precise information for the supranuclear matter inside neutron stars (NSs ...
Shao, Lijing
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I-Love-Q anisotropically: Universal relations for compact stars with scalar pressure anisotropy
, 2015 Certain physical quantities that characterize neutron stars and quark stars (e.g. their mass, spin angular momentum and quadrupole moment) are interrelated in a way that is approximately insensitive to their internal structure.
Yagi, Kent, Yunes, Nicolas
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Applications of Stellar Population Synthesis in the Distant Universe
, 2020 Comparison with artificial galaxy models is essential for translating the incomplete and low signal-to-noise data we can obtain on astrophysical stellar populations to physical interpretations which describe their composition, physical properties ...
Stanway, Elizabeth R.
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Asteroseismology of the open clusters NGC 6791, NGC 6811, and NGC 6819 from nineteen months of Kepler photometry [PDF]
, 2012 We studied solar-like oscillations in 115 red giants in the three open clusters NGC 6791, NGC 6811, and NGC 6819, based on photometric data covering more than 19 months with NASA's Kepler space telescope.
Alfio Bonanno +49 more
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Compact stars with sequential QCD phase transitions
, 2017 Compact stars may contain quark matter in their interiors at densities exceeding several times the nuclear saturation density. We explore models of such compact stars where there are two first-order phase transitions: the first from nuclear matter to a ...
Alford, Mark G., Sedrakian, Armen
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The Effect of Magnetic Variability on Stellar Angular Momentum Loss II: The Sun, 61 Cygni A, $\epsilon$ Eridani, $\xi$ Bootis A and $\tau$ Bootis A [PDF]
, 2019 The magnetic fields of low-mass stars are observed to be variable on decadal timescales, ranging in behaviour from cyclic to stochastic. The changing strength and geometry of the magnetic field should modify the efficiency of angular momentum loss by ...
Finley, Adam J. +2 more
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Evidence against anomalous compositions for giants in the Galactic Nuclear Star Cluster [PDF]
, 2018 Very strong Sc I lines have been found recently in cool M giants in the Nuclear Star Cluster in the Galactic Center. Interpreting these as anomalously high scandium abundances in the Galactic Center would imply a unique enhancement signature and chemical
Hartman, H. +7 more
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Neutrino Nucleosynthesis of radioactive nuclei in supernovae [PDF]
, 2015 We study the neutrino-induced production of nuclides in explosive supernova nucleosynthesis for progenitor stars with solar metallicity and initial main sequence masses between 15 M$_\odot$ and 40 M$_\odot$. We improve previous investigations i) by using
Heger, A. +4 more
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Maximal neutron star mass and the resolution of hyperon puzzle in modified gravity
, 2014 The so-called hyperon puzzle in the theory of neutron stars is considered in the framework of modified $f(R)$ gravity. We show that for simple hyperon equations of state, it is possible to obtain the maximal neutron star mass which satisfies the recent ...
Astashenok, Artyom V. +2 more
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EMMI Rapid Reaction Task Force Meeting on 'Quark Matter in Compact Star'
, 2014 The recent measurement of two solar mass pulsars has initiated an intense discussion on its impact on our understanding of the high-density matter in the cores of neutron stars.
Buballa, Michael +10 more
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