10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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19 papers · 2 filters
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
The LIGO Scientific Collaboration, The Virgo Collaboration
On August 17, 2017 at 12:41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW1…
GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1107
On August 14, 2017 at 10:30:43 UTC, the Advanced Virgo detector and the two Advanced LIGO detectors coherently observed a transient gravitational-wave signal produced by the coales…
Accelerated observers and the notion of singular spacetime
Gonzalo J. Olmo, Diego Rubiera-Garcia, Antonio Sanchez-Puente
Geodesic completeness is typically regarded as a basic criterion to determine whether a given spacetime is regular or singular. However, the principle of general covariance does no…
GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1099
The LIGO Scientific and Virgo Collaborations have announced the first detection of gravitational waves from the coalescence of two neutron stars. The merger rate of binary neutron…
First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1096
Spinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the cas…
Nonsingular black holes, wormholes, and de Sitter cores from anisotropic fluids
C. Menchon, Gonzalo J. Olmo, D. Rubiera-Garcia
We study Born-Infeld gravity coupled to an anisotropic fluid in a static, spherically symmetric background. The free function characterizing the fluid is selected on the following…
Lensing and dynamics of ultra-compact bosonic stars
Pedro V. P. Cunha, José A. Font, Carlos Herdeiro +3
Spherically symmetric bosonic stars are one of the few examples of gravitating solitons that are known to form dynamically, via a classical process of (incomplete) gravitational co…
Magnetised Polish doughnuts revisited
Sergio Gimeno-Soler, José A. Font
We discuss a procedure to build new sequences of magnetised, equilibrium tori around Kerr black holes which combines two approaches previously considered in the literature. For sim…
Gravity and handedness of photons
Ivan Agullo, Adrian del Rio, Jose Navarro-Salas
Vacuum fluctuations of quantum fields are altered in presence of a strong gravitational background, with important physical consequences. We argue that a non-trivial spacetime geom…
Born-Infeld inspired modifications of gravity
Jose Beltran Jimenez, Lavinia Heisenberg, Gonzalo J. Olmo +1
General Relativity has shown an outstanding observational success in the scales where it has been directly tested. However, modifications have been intensively explored in the regi…
Scalar geons in Born-Infeld gravity
V. I. Afonso, Gonzalo J. Olmo, D. Rubiera-Garcia
The existence of static, spherically symmetric, self-gravitating scalar field solutions in the context of Born-Infeld gravity is explored. Upon a combination of analytical approxim…
Quasistationary solutions of scalar fields around collapsing self-interacting boson stars
Alejandro Escorihuela-Tomàs, Nicolas Sanchis-Gual, Juan Carlos Degollado +1
There is increasing numerical evidence that scalar fields can form long-lived quasi-bound states around black holes. Recent perturbative and numerical relativity calculations have…
Cosmic censorship conjecture in some matching spherical collapsing metrics
Ramon Lapiedra, Juan Antonio Morales-Lladosa
A physically plausible Lema{\^ı}tre-Tolman-Bondi collapse in the marginally bound case is considered. By "physically plausible" we mean that the corresponding metric is ${\cal C}^1…
Adiabatic regularization with a Yukawa interaction
A. del Rio, A. Ferreiro, J. Navarro-Salas +1
We extend the adiabatic regularization method for an expanding universe to include the Yukawa interaction between quantized Dirac fermions and a homogeneous background scalar field…
Numerical evolutions of spherical Proca stars
Nicolas Sanchis-Gual, Carlos Herdeiro, Eugen Radu +2
Vector boson stars, or , have been recently obtained as fully non-linear numerical solutions of the Einstein-(complex)-Proca system. These are self-gravitatin…
Completion of the universal I-Love-Q relations in compact stars including the mass
Borja Reina, Nicolas Sanchis-Gual, Raül Vera +1
In a recent paper we applied a rigorous perturbed matching framework to show the amendment of the mass of rotating stars in Hartle's model. Here, we apply this framework to the tid…
General invertible transformation and physical degrees of freedom
Kazufumi Takahashi, Hayato Motohashi, Teruaki Suyama +1
An invertible field transformation is such that the old field variables correspond one-to-one to the new variables. As such, one may think that two systems that are related by an i…
Labeling spherically symmetric spacetimes with the Ricci tensor
Joan Josep Ferrando, Juan Antonio Sáez
We complete the intrinsic characterization of spherically symmetric solutions partially accomplished in a previous paper [Class.Quant.Grav. (2010) 27 205024]. In this approach we c…
Observational effects of varying speed of light in quadratic gravity cosmological models
Azam Izadi, Shadi Sajedi Shacker, Gonzalo J. Olmo +1
We study different manifestations of the speed of light in theories of gravity where metric and connection are regarded as independent fields. We find that for a generic gravity th…