Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract We analyze data from 142 of the 218 gravitational-wave (GW) sources in the fourth LIGO–Virgo–KAGRA Collaboration (LVK) Gravitational-Wave Transient Catalog (GWTC-4.0) to estimate the Hubble constant H 0 jointly with the population properties of merging compact binaries. We measure the luminosity …
de, it, gb, au, us, in, fr, be, br, jp, nl, es, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract Rotating nonaxisymmetric neutron stars (NSs) are promising sources for continuous gravitational waves (CWs). CWs may, if detected, inform us about the internal structure and equation of state of NSs. Here, we present a narrowband search for CWs from known pulsars, for …
de, it, gb, au, us, in, fr, be, br, jp, nl, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract We detail the population properties of binary neutron star, neutron star–black hole binary, and binary black hole mergers using 158 events from the cumulative Gravitational-Wave Transient Catalog 4.0. The black hole primary mass distribution consists of a power-law-like continuum that steepens …
de, it, gb, au, us, in, be, kr, br, fr, nl, jp, es, mx, hu
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract Among known neutron stars, the Vela pulsar is one of the best targets for gravitational-wave searches. It is also one of the most prolific in terms of glitches, which are sudden frequency changes in a pulsar’s rotation. Such glitches could cause …
de, it, gb, au, us, in, fr, be, br, jp, nl, es, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract GW230814, detected by the LIGO Livingston observatory with a signal-to-noise ratio of 42.4, represents the loudest gravitational-wave signal in the GWTC-4.0 catalog. Its source is consistent with a binary black hole coalescence with component masses m 1 = 33 . 7 …
de, it, gb, au, us, in, fr, be, br, nl, jp, es, mx, sk, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract The Gravitational-Wave Transient Catalog (GWTC) is a collection of candidate gravitational-wave transient signals identified and characterized by the LIGO–Virgo–KAGRA Collaboration. Producing the contents of the GWTC from detector data requires complex analysis methods. These comprise techniques to model the signal; identify …
de, it, gb, us, in, be, fr, kr, br, ie, jp, au, nl, es, mx, hu
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract LIGO, Virgo, and KAGRA form a network of gravitational-wave observatories. Data and analysis results from this network are made publicly available through the Gravitational Wave Open Science Center. This paper describes open data from this network, including the addition of data …
de, it, gb, au, us, in, fr, be, br, jp, nl, es, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract Version 4.0 of the Gravitational-Wave Transient Catalog (GWTC-4.0) adds new candidates detected by the LIGO, Virgo, and KAGRA observatories through the first part of the fourth observing run (O4a: 2023 May 24 15:00:00 to 2024 January 16 16:00:00 UTC) and a …
de, it, gb, au, us, in, fr, be, br, ie, jp, nl, es, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
Abstract We present results from directed searches for continuous gravitational waves from a sample of 15 nearby supernova remnants, likely hosting young neutron star candidates, using data from the first eight months of the fourth observing run (O4) of the LIGO–Virgo–KAGRA Collaboration. …
de, it, gb, au, us, in, fr, be, br, jp, nl, es, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
We present the first directed searches for long-transient and continuous gravitational waves from ultralight vector boson clouds around known black holes (BHs). We use LIGO data from the first part of the fourth LIGO-Virgo-KAGRA observing run. The searches target two distinct types …
de, it, gb, au, us, in, fr, be, br, jp, nl, es, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
We present a search for gravitational waves from inspiraling, planetary-mass ultracompact binaries using data from the first part of the fourth observing run of LIGO, Virgo, and KAGRA. Finding no evidence of such systems, we determine the maximum distance reach for such …
de, it, gb, au, us, in, fr, be, br, jp, nl, es, mx, kr
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres
GW240925 and GW250207 are two loud gravitational-wave signals from binary black hole coalescences observed with network signal-to-noise ratios ∼32 and ∼69, respectively, by the LIGO Hanford-LIGO Livingston-Virgo network. Gravitational-wave signals from coalescing binaries have characteristic phase and amplitude evolution predicted by general …
de, it, gb, au, us, in, fr, be, br, jp, nl, mx, kr
(code pays fourni par la source)