Results 11 to 20 of about 116,070 (271)

Constraints on physics of neutron stars from X-ray observations [PDF]

, 2013
I summarize some constraints on the physics of neutron stars arising from X-ray observations of the surfaces of neutron stars, focusing on using models of low-magnetic-field neutron star atmospheres to interpret their X-ray spectra.
Heinke, Craig O.
core   +1 more source

How to identify a Strange Star [PDF]

, 1998
Contrary to young neutron stars, young strange stars are not subject to the r-mode instability which slows rapidly rotating, hot neutron stars to rotation periods near 10 ms via gravitational wave emission.
A. Goyal, C. Alcock, C. Cutler, C. J. Pethick, C. Schaab, E. Witten, H. Heiselberg, H. Heiselberg, H. Heiselberg, J. L. Friedman, J. L. Zdunik, J. M. Lattimer, J. Madsen, J. Madsen, Jes Madsen, L. Lindblom, M. Colpi, N. Andersson, N. K. Glendenning, P. Haensel, Q. D. Wang, R. F. Sawyer, Z. Dai   +22 more
core   +2 more sources

Detectability of Continuous Gravitational Waves from Magnetically Deformed Neutron Stars

Galaxies, 2021
Neutron stars are known to contain extremely powerful magnetic fields. Their effect is to deform the shape of the star, leading to the potential emission of continuous gravitational waves.
Jacopo Soldateschi, Niccolò Bucciantini
doaj   +1 more source

QCD equations of state and speed of sound in neutron stars

AAPPS Bulletin, 2021
Neutron stars are cosmic laboratories to study dense matter in quantum chromodynamics (QCD). The observable mass-radius relations of neutron stars are determined by QCD equations of state and can reflect the properties of QCD phase transitions.
Toru Kojo
doaj   +1 more source

The needle in the haystack - Where to look for more isolated cooling neutron stars [PDF]

, 2008
Context: Isolated cooling neutron stars with thermal X-ray emission remain rarely detected objects despite many searches investigating the ROSAT data.
Aguilera, Agüeros, Arzoumanian, B. Posselt, Becker, Blaauw, Blaes, Blaha, Blaschke, Brown, Brown, Chieregato, Crawford, de Zeeuw, Dickey, Efremov, F. Haberl, Faucher-Giguère, Fux, Gonthier, Grenier, Haberl, Haberl, Hakkila, Harding, Heger, Hessels, Hobbs, J. Trümper, Kent, Kharchenko, Kharchenko, Lallement, Malofeev, Miyamoto, Motch, Page, Page, Philp, Pichardo, Piskunov, Popov, Popov, Popov, Popov, Popov, Posselt, Pöppel, R. Neuhäuser, R. Turolla, Rastorguev, Rutledge, Rutledge, S. B. Popov, Sayer, Schlegel, Schwope, Takatsuka, Tammann, Timmes, Torra, Trümper, Voges, Walter, Wilms, Woosley, Yakovlev, Zane, Zane   +68 more
core   +3 more sources

Quark Deconfinement in Rotating Neutron Stars

Universe, 2017
In this paper, we use a three flavor non-local Nambu–Jona-Lasinio (NJL) model, an improved effective model of Quantum Chromodynamics (QCD) at low energies, to investigate the existence of deconfined quarks in the cores of neutron stars.
Richard D. Mellinger, Fridolin Weber, William Spinella, Gustavo A. Contrera, Milva G. Orsaria   +4 more
doaj   +1 more source

Neutron Stars in the Symmetron Model

Universe, 2021
Screening mechanisms are often deployed by dark energy models to conceal the effects of their new degrees of freedom from the scrutiny of terrestrial and solar system experiments.
Bernardo F. de Aguiar, Raissa F. P. Mendes, Felipe T. Falciano   +2 more
doaj   +1 more source

Transition density and pressure in hot neutron stars [PDF]

, 2010
Using the momentum-dependent MDI effective interaction for nucleons, we have studied the transition density and pressure at the boundary between the inner crust and liquid core of hot neutron stars.
Chen, Lie-Wen, Ko, Che Ming, Li, Bao-An, Xu, Jun   +3 more
core   +2 more sources

Isolated Neutron Stars

EPJ Web of Conferences, 2010
Several aspects related to astrophysics of isolated neutron stars are discussed. We start with an introduction into the “new zoo” of young isolated neutron stars.
Popov S.
doaj   +1 more source

Nucleonic Direct Urca Processes and Cooling of the Massive Neutron Star by Antikaon Condensations

Advances in Astronomy, 2020
Nucleonic direct Urca processes and cooling of the massive neutron stars are studied by considering antikaon condensations. Calculations are performed in the relativistic mean field and isothermal interior approximations.
Yan Xu, Wen Bo Ding, Cheng Zhi Liu, J. L. Han   +3 more
doaj   +1 more source