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We model the temperature distribution at the surface of a magnetized neutron star and study the effects on the observable X-ray spectra and light curves, taking fully into account gravitational lensing. Only dipolar fields are considered…

Astrophysics · Physics 2009-10-22 Dany Page

Gravity is the most familiar force at our natural length scale. However, it is still exotic from the view point of particle physics. The first experimental study of quantum effects under gravity was performed using a cold neutron beam in…

High Energy Physics - Experiment · Physics 2015-04-10 Y. Kamiya , G. Ichikawa , S. Komamiya

In experimental proposals published in the last two decades, a so called frozen spin storage ring concept was proposed for setting upper experimental bounds to electric dipole moment (EDM) of elementary particles. In a recent paper of ours,…

General Relativity and Quantum Cosmology · Physics 2019-09-18 Andras Laszlo

Cooling of neutron stars with dipole magnetic fields is simulated using a realistic model of the anisotropic surface temperature distribution produced by magnetic fields. Suppression of the electron thermal conductivity of outer stellar…

Astrophysics · Physics 2011-05-23 Yu. A. Shibanov , D. G. Yakovlev

The search for particle electric dipole moments (edm) is one of the best places to look for physics beyond the standard model because the size of time reversal violation predicted by the standard model is incompatible with present ideas…

Nuclear Experiment · Physics 2009-11-10 S. K. Lamoreaux , R. Golub

The presence of a large applied magnetic field removes the degeneracy of the vacuum energy states for spin-up and spin-down neutrons. For polarized neutron reflectometry, this must be included in the reference potential energy of the…

Extremely strong magnetic fields change the vacuum index of refraction. This induces a lensing effect that is not unlike the lensing phenomenon in strong gravitational fields. The main difference between the two is the polarization…

Astrophysics · Physics 2009-10-31 Nir J. Shaviv , Jeremy S. Heyl , Yoram Lithwick

If the technology for muon storage rings one day permits sensitivity to precession at the order of $10^{-8}$ Hz, the local gravitational field of Earth can be a dominant contribution to the precession of the muon, which, if ignored, can…

High Energy Physics - Phenomenology · Physics 2016-09-21 Andrew Kobach

Gradient spin echo enhanced proton precession magnetometer is a novel system which can measure the first order gradient of the background field in addition to the magnetic field. The system includes a conventional proton precession…

Instrumentation and Detectors · Physics 2020-07-21 Farrokh Sarreshtedari , Faeze Mahboubian , Mohammad Hadi Sardari

The consideration is presented of possible neutron experiments to search for new short-range spin-dependent forces. The spin-dependent nucleon-nucleon interaction between neutron and nuclei may cause different effects: phase shift of a…

Nuclear Experiment · Physics 2015-05-28 Yu. N. Pokotilovski

The short gravitational wave signal from the merger of compact binaries encodes a surprising amount of information about the strong-field dynamics of merger into frequencies accessible to ground-based interferometers. In this paper we…

General Relativity and Quantum Cosmology · Physics 2013-03-14 R. O'Shaughnessy , L. London , J. Healy , D. Shoemaker

We briefly review recent theoretical studies of the effects of accreted envelopes, magnetic fields and crustal superfluidity on the cooling of neutron stars. These effects are especially important for slowly cooling low-mass neutron stars,…

Astrophysics · Physics 2007-05-23 G. Chabrier , A. Y. Potekhin , D. G. Yakovlev

Gravitationally bound neutrons have become an important tool in the experimental searches for new physics, such as modifications to Newton's force or candidates for dark matter particles. Here we include the relativistic effects of…

Quantum Physics · Physics 2022-11-23 Germain Tobar , Simon Haine , Fabio Costa , Magdalena Zych

We point out that the presence of bulk neutrinos in models with large extra spatial dimensions can lead to observable flavour specific deformations in the spectra of extreme high energy cosmic neutrinos. These deformations are due to the…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. R. S. Balaji , A. Dighe , R. N. Mohapatra

It was pointed out recently that oscillation of the neutron $n$ into mirror neutron $n'$, a sterile twin of the neutron with exactly the same mass, could be a very fast process with the the baryon number violation, even faster than the…

High Energy Physics - Phenomenology · Physics 2009-11-12 Zurab Berezhiani

Extremely strong magnetic fields change the vacuum index of refraction. Although this polarization dependent effect is small for typical neutron stars, it is large enough to decouple the polarization states of photons traveling within the…

Astrophysics · Physics 2009-10-31 Jeremy S. Heyl , Nir J. Shaviv

The intense magnetic fields present in neutron stars are closely linked to their observed temperature and spectral characteristics, timing properties, including spin period and its derivatives. Therefore, a comprehensive theoretical…

High Energy Astrophysical Phenomena · Physics 2025-02-03 Debasis Atta , Vinay Singh , D. N. Basu

Mergers of compact stellar remnant are prime targets for the LIGO/Virgo gravitational wave detectors. One hopes that the gravitational wave signals from these merger events can be used to study the mass and spin distribution of stellar…

General Relativity and Quantum Cosmology · Physics 2014-12-19 Katerina Chatziioannou , Neil Cornish , Antoine Klein , Nicolas Yunes

Neutron stars such as pulsars and magnetars lose angular momentum primarily through electromagnetic dipole radiation, gravitational waves, $r$-mode oscillation, and also affected by fallback accretion processes. However, anomalous spin…

High Energy Astrophysical Phenomena · Physics 2025-12-29 Indra Kumar Banerjee , Sandeep Chatterjee , Biswarup Das , Ujjal Kumar Dey

The effects of strong magnetic fields on the inner crust of neutron stars are investigated after taking into account the anomalous magnetic moments of nucleons. Energy spectra and wave functions for protons and neutrons in a uniform…

Astrophysics · Physics 2009-11-10 H. Wen , L. S. Kisslinger , Walter Greiner , G. Mao