Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE1.5k papers
- Leibniz University HannoverDE902 papers
- California Institute of TechnologyUS583 papers
- Centre National de la Recherche ScientifiqueFR534 papers
- University of BirminghamGB417 papers
- Pennsylvania State UniversityUS402 papers
- University of Maryland, College ParkUS398 papers
- Louisiana State UniversityUS394 papers
- University of Wisconsin–MilwaukeeUS390 papers
- Cardiff UniversityGB371 papers
- University of GlasgowGB367 papers
- Goddard Space Flight CenterUS340 papers
86 papers · 1 filter
Motion of test bodies in theories with nonminimal coupling
Dirk Puetzfeld, Yuri N. Obukhov
We derive the equations of motion of test bodies for a theory with nonminimal coupling by means of a multipole method. The propagation equations for pole-dipole particles are worke…
Beyond ideal MHD: towards a more realistic modeling of relativistic astrophysical plasmas
Carlos Palenzuela, Luis Lehner, Oscar Reula +1
Many astrophysical processes involving magnetic fields and quasi-stationary processes are well described when assuming the fluid as a perfect conductor. For these systems, the idea…
The stellar content of the Hamburg/ESO survey. V. The metallicity distribution function of the Galactic halo
T. Schoerck, N. Christlieb, J. G. Cohen +22
We determine the metallicity distribution function (MDF) of the Galactic halo by means of a sample of 1638 metal-poor stars selected from the Hamburg/ESO objective-prism survey (HE…
Faranoff-Riley type I jet deceleration at density discontinuities "Relativistic hydrodynamics with realistic equation of state"
Z. Meliani, R. Keppens, B. Giacomazzo
The deceleration mechanisms for relativistic jets in active galactic nuclei remain an open question, and in this paper we propose a model which could explain sudden jet deceleratio…
Search for Gravitational Wave Bursts from Soft Gamma Repeaters
LIGO Scientific Collaboration, S. Barthelmy, N. Gehrels +2
We present the results of a LIGO search for short-duration gravitational waves (GWs) associated with Soft Gamma Repeater (SGR) bursts. This is the first search sensitive to neutron…
Apparent and average acceleration of the Universe
Krzysztof Bolejko, Lars Andersson
In this paper we consider the relation between the volume deceleration parameter obtained within the Buchert averaging scheme and the deceleration parameter derived from the supern…
Relativistic simulations of the phase-transition-induced collapse of neutron stars
E. B. Abdikamalov, H. Dimmelmeier, L. Rezzolla +1
An increase in the central density of a neutron star may trigger a phase transition from hadronic matter to deconfined quark matter in the core, causing it to collapse to a more co…
Beating the spin-down limit on gravitational wave emission from the Crab pulsar
The LIGO Scientific Collaboration, B. Abbott, R. Abbott +440
We present direct upper limits on gravitational wave emission from the Crab pulsar using data from the first nine months of the fifth science run of the Laser Interferometer Gravit…
Detecting gravitational wave emission from the known accreting neutron stars
Anna Watts, Badri Krishnan, Lars Bildsten +1
Detection of gravitational waves from accreting neutron stars (NSs) in our galaxy, due to ellipticity or internal oscillation, would be a breakthrough in our understanding of compa…
Astrodynamical Space Test of Relativity using Optical Devices I (ASTROD I) - A class-M fundamental physics mission proposal for Cosmic Vision 2015-2025
Thierry Appourchaux, Raymond Burston, Yanbei Chen +33
ASTROD I is a planned interplanetary space mission with multiple goals. The primary aims are: to test General Relativity with an improvement in sensitivity of over 3 orders of magn…
Implications for the Origin of GRB 070201 from LIGO Observations
LIGO Scientific Collaboration, K. Hurley
We analyzed the available LIGO data coincident with GRB 070201, a short duration hard spectrum gamma-ray burst whose electromagnetically determined sky position is coincident with…
Magnetic field amplification in proto-neutron stars -- The role of the neutron-finger instability for dynamo excitation
L. Naso, L. Rezzolla, A. Bonanno +1
During the first 40 s after their birth, proto-neutron stars are expected to be subject to at least two types of instability: the convective instability and the neutron-finger one.…
Avalanche dynamics of radio pulsar glitches
A. Melatos, C. Peralta, J. S. B. Wyithe
We test statistically the hypothesis that radio pulsar glitches result from an avalanche process, in which angular momentum is transferred erratically from the flywheel-like superf…
Gravitational-Wave Astronomy with Inspiral Signals of Spinning Compact-Object Binaries
M. V. van der Sluys, C. Roever, A. Stroeer +6
Inspiral signals from binary compact objects (black holes and neutron stars) are primary targets of the ongoing searches by ground-based gravitational-wave interferometers (LIGO, V…
Dynamical non-axisymmetric instabilities in rotating relativistic stars
G. M. Manca, L. Baiotti, R. De Pietri +1
We present new results on dynamical instabilities in rapidly rotating neutron-stars. In particular, using numerical simulations in full General Relativity, we analyse the effects t…
Search for gravitational wave radiation associated with the pulsating tail of the SGR 1806-20 hyperflare of 27 December 2004 using LIGO
The LIGO Scientific Collaboration
We have searched for Gravitational Waves (GWs) associated with the SGR 1806-20 hyperflare of 27 December 2004. This event, originating from a Galactic neutron star, displayed excep…
Upper limit map of a background of gravitational waves
The LIGO Scientific Collaboration, B. Abbott
We searched for an anisotropic background of gravitational waves using data from the LIGO S4 science run and a method that is optimized for point sources. This is appropriate if, f…
Intermediate and Extreme Mass-Ratio Inspirals -- Astrophysics, Science Applications and Detection using LISA
Pau Amaro-Seoane, Jonathan R. Gair, Marc Freitag +4
Black hole binaries with extreme () or intermediate () mass ratios are among the most interesting gravitational wave sources that are expected to…
Dependence of the orbital modulation of X-rays from 4U 1820-303 on the accretion rate
A. A. Zdziarski, M. Gierlinski, L. Wen +1
We report the discovery, using RXTE data, of a dependence of the X-ray orbital modulation depth on the X-ray spectral state in the ultracompact atoll binary \source. This state (me…
The superorbital variability and triple nature of the X-ray source 4U 1820-303
A. A. Zdziarski, L. Wen, M. Gierlinski
We perform a comprehensive analysis of the superorbital modulation in the ultracompact X-ray source 4U 1820-303, consisting of a white dwarf accreting onto a neutron star. Based on…
Dynamics of magnetized relativistic tori oscillating around black holes
Pedro J. Montero, Olindo Zanotti, Jose A. Font +1
We present a numerical study of the dynamics of magnetized, relativistic, non-self-gravitating, axisymmetric tori orbiting in the background spacetimes of Schwarzschild and Kerr bl…
Multi-Dimensional Explorations in Supernova Theory
Adam Burrows, Luc Dessart, Christian D. Ott +1
In this paper, we bring together various of our published and unpublished findings from our recent 2D multi-group, flux-limited radiation hydrodynamic simulations of the collapse a…
Rotating Collapse of Stellar Iron Cores in General Relativity
Christian D. Ott, Harald Dimmelmeier, Andreas Marek +4
We present results from the first 2+1 and 3+1 simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and…
Accelerated expansion by non-minimally coupled scalar fields
Roger Bieli
In a class of spatially homogeneous cosmologies including those of Bianchi type I--VIII mathematical results are presented which show that a scalar field non-minimally coupled to t…