Testing viable f(R) models with the angular-diameter distance to compact quasar cores [0.03%]
利用类星体核心的角直径距离检验可行的f（R）模型
Joseph Sultana,Fulvio Melia,Demosthenes Kazanas
Joseph Sultana
We consider here some popular f(R) models generally viewed as possible alternatives to the existence of dark energy in General Relativity. For each of these, we compute the redshift z max at which the angular diameter distance d A (z) is ex...
Pedro Cañate,Joseph Sultana,Demosthenes Kazanas
Pedro Cañate
In this paper, we present an exact solution for (3 + 1)-dimensional Einstein-scalar-Gauss-Bonnet theory (EsGB) in electrovacuum. The solution is characterized by only one parameter, Q, which in general can be associated with the electromagn...
T G Downes,J R van Meter,E Knill et al.
T G Downes et al.
We describe a quantum limit to measurement of classical spacetimes. Specifically, we formulate a quantum Cramér-Rao lower bound for estimating the single parameter in any one-parameter family of spacetime metrics. We employ the locally cov...
Bernard J Kelly,John G Baker,Zachariah B Etienne et al.
Bernard J Kelly et al.
Binary black hole (BBH) mergers provide a prime source for current and future interferometric GW observatories. Massive BBH mergers may often take place in plasma-rich environments, leading to the exciting possibility of a concurrent electr...
GW150914: First results from the search for binary black hole coalescence with Advanced LIGO [0.03%]
GW150914：首次公布高级LIGO对双黑洞并合的搜索结果
B P Abbott,R Abbott,T D Abbott et al.
B P Abbott et al.
On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) simultaneously observed the binary black hole merger GW150914. We report the results of a matched-filter search using ...
Measurement of the high-energy gamma-ray emission from the Moon with the Fermi Large Area Telescope [0.03%]
费米大型电幕望远镜测量的月球高能伽马射线辐射
M Ackermann,M Ajello,A Albert et al.
M Ackermann et al.
We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first seven years of operation, in the energy range from 30 MeV up to a few GeV. We hav...
Cosmic tau neutrino detection via Cherenkov signals from air showers from Earth-emerging taus [0.03%]
利用地球出现的tau粒子空气 Showercherenkov信号探测宇宙tau中微子
Mary Hall Reno,John F Krizmanic,Tonia M Venters
Mary Hall Reno
We perform a new, detailed calculation of the flux and energy spectrum of Earth-emerging τ-leptons generated from the interactions of tau neutrinos and antineutrinos in the Earth. A layered model of the Earth is used to describe the variab...
James Ira Thorpe,Kirk McKenzie
James Ira Thorpe
Arm-locking is a technique for stabilizing the frequency of a laser in an inter-spacecraft interferometer by using the spacecraft separation as the frequency reference. A candidate technique for future space-based gravitational wave detecto...
Search for Gamma-ray Emission from p-wave Dark Matter Annihilation in the Galactic Center [0.03%]
搜寻银河系中心p波模式暗物质湮灭伽马射线信号
C Johnson,R Caputo,C Karwin et al.
C Johnson et al.
Indirect searches for dark matter through Standard Model products of its annihilation generally assume a cross-section which is dominated by a term independent of velocity (s-wave annihilation). However, in many DM models an s-wave annihila...
Magnetorotational collapse of supermassive stars: Black hole formation, gravitational waves, and jets [0.03%]
超强质量恒星的磁旋转坍缩：黑洞形成、引力波和喷流
Lunan Sun,Vasileios Paschalidis,Milton Ruiz et al.
Lunan Sun et al.
We perform magnetohydrodynamic simulations in full general relativity of uniformly rotating stars that are marginally unstable to collapse. These simulations model the direct collapse of supermassive stars (SMSs) to seed black holes that ca...