Results 81 to 90 of about 920,763 (375)
The Zoo of neutron stars [PDF]
In these lecture notes I briefly discuss the present day situation and new discoveries in astrophysics of neutron stars focusing on isolated objects. The latter include soft gamma repeaters, anomalous X-ray pulsars, central compact objects in supernova remnants, the Magnificent seven, and rotating radio transients.
openaire +2 more sources
Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817 [PDF]
We combine electromagnetic (EM) and gravitational-wave (GW) information on the binary neutron star (NS) merger GW170817 in order to constrain the radii and maximum mass of NSs.
B. Margalit, B. Metzger
semanticscholar +1 more source
Cyclotron lines in highly magnetized neutron stars [PDF]
Cyclotron lines, also called cyclotron resonant scattering features are spectral features, generally appearing in absorption, in the X-ray spectra of objects containing highly magnetized neutron stars, allowing the direct measurement of the magnetic ...
R. Staubert+12 more
semanticscholar +1 more source
Nucleosynthesis in low-mass stars: Shedding light on the cosmic origin of heavy elements [PDF]
Low-mass, low-metallicity stars while evolving through the asymptotic giant branch (AGB) phase undergo significant nucleosynthesis producing the majority of slow (s-) and intermedite (i-) neutron capture elements.
Goswami Aruna
doaj +1 more source
A Method for Distinguishing Between Transiently Accreting Neutron Stars and Black Holes, in Quiescence [PDF]
We fit hydrogen atmosphere models to the X-ray data for four neutron stars (three from a previous paper, plus 4U 2129+47) and six black hole candidates (A0620-00, GS 2000+25, GS 1124-68, GS 2023+33, GRO J1655-40, and GRO J0422+32).
Bildsten, Lars+4 more
core +2 more sources
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral [PDF]
On August 17, 2017 at 12:41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral.
The Ligo Scientific Collaboration+1 more
semanticscholar +1 more source
Quarkyonic Matter and Neutron Stars. [PDF]
We consider quarkyonic matter to naturally explain the observed properties of neutron stars. We argue that such matter might exist at densities close to that of nuclear matter, and at the onset, the pressure and the sound velocity in quarkyonic matter ...
L. McLerran, S. Reddy
semanticscholar +1 more source
Constraining Dark Boson Decay Using Neutron Stars
Inspired by the well-known anomaly in the lifetime of the neutron, we investigated its consequences inside neutron stars. We first assessed the viability of the neutron decay hypothesis suggested by Fornal and Grinstein within neutron stars, in terms of ...
Wasif Husain+2 more
doaj +1 more source
Neutron skins and neutron stars
Background: The neutron skin of a heavy nucleus as well as many neutron-star properties are highly sensitive to the poorly constrained density dependence of the symmetry energy. Purpose: To provide for the first time meaningful theoretical errors and to assess the degree of correlation between the neutron-skin thickness of ${}^{208}$Pb and several ...
Farrukh J. Fattoyev+2 more
openaire +4 more sources
15 pages, LaTeX2e, 3 eps figures, to appear in Physica ...
Ilona Bednarek, Ryszard Manka
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