Discovery of X-ray Pulsation from the Geminga-like Pulsar PSR J 2021+4026

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Discovery Of An Ultracompact Gamma-ray Millisecond Pulsar Binary Candidate

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Mode Change of a Gamma-Ray Pulsar, PSR J2021+4026

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Acoustic black holes for relativistic fluids

We derive a new acoustic black hole metric from the Abelian Higgs model. In the non-relativistic limit, while the Abelian Higgs model becomes the Ginzburg-Landau model, the metric reduces to an ordinary Unruh type. We investigate the possibility of using (type I and II) superconductors as the acoustic black holes. We propose to realize experimental acoustic black holes by using spiral vortices solutions from the Navier-stokes equation in the non-relativistic classical fluids.Comment: 16 pages. typos corrected, contents expande

A Detailed X-Ray Investigation of PSR J2021+4026 and the γ-Cygni Supernova Remnant

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Exploring the Intrabinary Shock from the Redback Millisecond Pulsar PSR J2129-0429

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Discovery of an X-ray Emitting Contact Binary System 2MASS J11201034-2201340

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Whole-Genome Array CGH Evaluation for Replacing Prenatal Karyotyping in Hong Kong

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Hidden conformal symmetry of extreme and non-extreme Einstein-Maxwell-Dilaton-Axion black holes

The hidden conformal symmetry of extreme and non-extreme Einstein-Maxwell-Dilaton-Axion (EMDA) black holes is addressed in this paper. For the non-extreme one, employing the wave equation of massless scalars, the conformal symmetry with left temperature $T_{L}=\frac{M}{2\pi a}$ and right temperature $T_{R}=\frac{\sqrt{M^{2}-a^{2}}}{2\pi a}$ in the near region is found. The conformal symmetry is spontaneously broken due to the periodicity of the azimuthal angle. The microscopic entropy is derived by the Cardy formula and is fully in consistence with the Bekenstein-Hawking area-entropy law. The absorption cross section in the near region is calculated and exactly equals that in a 2D CFT. For the extreme case, by redefining the conformal coordinates, the duality between the solution space and CFT is studied. The microscopic entropy is found to exactly agree with the area-entropy law.Comment: V3, typos corrected, version to appear in JHE

Searches for Millisecond Pulsar Candidates among the Unidentified <i>Fermi</i> Objects

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