43 citations · 85 across the 14 of their papers we have counts for
15 papers
Low-Frequency Gravitational Bremsstrahlung and Memory in a Medium
Diego Blas, Silvia Gasparotto, Hitoshi Murayama +2
Gravitational radiation from the early Universe offers a powerful window into physics beyond the Standard Model (SM). In this paper, we investigate the low-frequency tail of gravit…
GUEST: Gravitational Universe Exploration with Satellite Tracking. A passive satellite laser-ranging mission for the dark gravitational Universe
Diego Blas, Aurélien Hees, F. Javier Atapuerca +78
GUEST is a space mission concept whose central objective is the detection of gravitational waves (GWs) in the microhertz band -- a physics-rich frequency window that no other prese…
Gravitational Wave Memory in Beyond GR Theories
Silvia Gasparotto
Gravitational-wave memory is a low-frequency, non-oscillatory signal that provides a promising probe of strong-field gravity. We present the first computation of memory from full i…
Scalar memory from compact binary coalescences
Jann Zosso, Silvia Gasparotto, Llibert Aresté Saló +2
Gravitational memory provides a distinctive low-frequency probe of gravity, but explicit merger studies beyond general relativity remain limited. In this letter, we investigate mem…
Gravitational Memory from Hairy Binary Black Hole Mergers
Silvia Gasparotto, Jann Zosso, Llibert Aresté Saló +2
Gravitational-wave memory is a low-frequency, non-oscillatory component of the radiation field that provides a potentially powerful but as yet undetected probe of strong-field grav…
Detectability of Gravitational-Wave Memory with LISA: A Bayesian Approach
Adrien Cogez, Silvia Gasparotto, Jann Zosso +5
Gravitational wave (GW) astronomy opens a new venue to explore the universe. Future observatories such as LISA, the Laser Interferometer Space Antenna, are expected to observe prev…
Toward claiming a detection of gravitational memory
Jann Zosso, Lorena Magaña Zertuche, Silvia Gasparotto +3
Gravitational memory is a zero-frequency effect associated with a permanent change in the asymptotic spacetime metric induced by radiation. Although its universal manifestation is…
Gravitational Wave Memory of Primordial Black Hole Mergers
Silvia Gasparotto, Gabriele Franciolini, Valerie Domcke
The gravitational wave signal of binary compact objects has two main contributions at frequencies below the characteristic merger frequency: the gravitational wave signal associate…
Searching for Ultralight Dark Matter Solitons with Gravitational Waves
Silvia Gasparotto
Ultralight Dark Matter (ULDM) offers an alternative to cold dark matter, characterized by wavelike behavior on galactic scales. This contribution summarizes our work~\cite{Blas:202…
Searching for ultra-light dark matter through frequency modulation of gravitational waves
Diego Blas, Silvia Gasparotto, Rodrigo Vicente
Ultra-light bosons, naturally appearing in well-motivated extensions to the Standard Model, can constitute all the dark matter. Models with particle mass close to the smallest phen…
Measuring gravitational wave memory with LISA
Henri Inchauspé, Silvia Gasparotto, Diego Blas +3
Gravitational wave (GW) astronomy has revolutionized our capacity to explore nature. The next generation of observatories, among which the space-borne detector Laser Interferometer…
Axionic defects in the CMB: birefringence and gravitational waves
Ricardo Z. Ferreira, Silvia Gasparotto, Takashi Hiramatsu +2
The evidence for a non-vanishing isotropic cosmic birefringence in recent analyses of the CMB data provides a tantalizing hint for new physics. Domain wall (DW) networks have recen…
Cosmic Birefringence from the Axiverse
Silvia Gasparotto, Evangelos I. Sfakianakis
We revisit the evidence for CMB birefringence in the context of a rich Axiverse. Using probability density functions (PDFs) for various axion parameters, such as the mass and axion…
Can gravitational-wave memory help constrain binary black-hole parameters? A LISA case study
Silvia Gasparotto, Rodrigo Vicente, Diego Blas +2
Besides the transient effect, the passage of a gravitational wave also causes a persistent displacement in the relative position of an interferometer's test masses through the \emp…
Cosmic Birefringence from Monodromic Axion Dark Energy
Silvia Gasparotto, Ippei Obata
The recently reported non-zero isotropic birefringence angle in Planck 2018 polarization data provides a tantalizing hint for new physics of axions. In this paper, we explain this…