Results 51 to 60 of about 18,093 (220)

Gravitoastronomy with neutron stars [PDF]

open access: yes, 2004
Recent advances in gravitational wave detectors mean that we can start to make astrophysically important statements about the physics of neutron stars based on observed upper limits to their gravitational luminosity.
Woan, G., Graham Woan
core   +1 more source

LIGO detector characterization in the second and third observing runs

open access: yes, 2022
The characterization of the Advanced LIGO detectors in the second and third observing runs has increased the sensitivity of the instruments, allowing for a higher number of detectable gravitational-wave signals, and provided confirmation of all observed ...
Mavalvala, Nergis
core   +1 more source

Gravitational Radiation From Binary Systems With Time Varying Masses

open access: yesAnnalen der Physik, Volume 538, Issue 8, August 2026.
We extend the standard approach pioneered in the works by Peters and Mathews to include the mass loss processes of the binary components, by obtaining the variations due to gravitational radiation of the main physical parameters. As an application of our results we consider gravitational radiation emission in binary magnetar systems.
Teodora M. Matei   +2 more
wiley   +1 more source

The ligo gravitational wave observatories: recent results and future plans [PDF]

open access: yes, 2005
The LIGO interferometers are operating as gravitational wave observatories, with a noise level near an order of magnitude of the goal and the first scientific data recently taken. This data has been analyzed for four different categories of gravitational
Salzman, I.   +827 more
core   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

open access: yesAstronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth   +20 more
wiley   +1 more source

Perturbative Analytical Construction of Bowen–York Initial Data for Binary Black Holes up to Third Order in Spin and Linear Momentum

open access: yesFortschritte der Physik, Volume 74, Issue 8, August 2026.
ABSTRACT We analytically construct initial data for binary black hole systems by solving the Einstein constraint equations within the Bowen–York framework. Allowing for arbitrarily oriented linear momenta and spins, we obtain a perturbative solution of the vacuum Hamiltonian constraint up to third order in the source parameters. Our solution explicitly
Leyla Ogurol, Tore Boybeyi, Bayram Tekin
wiley   +1 more source

Ligo: An Open Source Application for the Management and Execution of Administrative Data Linkage

open access: yesInternational Journal of Population Data Science, 2018
Introduction Ligo is an open source application that provides a framework for managing and executing administrative data linking projects. Ligo provides an easy-to-use web interface that lets analysts select among data linking methods including ...
Greg Lawrance   +6 more
doaj   +1 more source

Status of LIGO

open access: yesJournal of Physics: Conference Series, 2008
LIGO successfully acquired more than one year of three-way coincident observation data using all three detectors during its fifth science run from November 2005 to the end of September 2007. All detectors reached sensitivity better than the design. For the two 4km detectors, the all-sky averaged detection range exceeded 15 Mpc with a signal-to-noise ...
K Kawabe, the LIGO Collaboration
openaire   +1 more source

GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run — Data behind the figures

open access: yes, 2021
This material is part of several data products associated with GWTC-3, the third Gravitational-Wave Transient Catalog from the LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration.
LIGO Scientific Collaboration and Virgo Collaboration and KAGRA Collaboration
core   +1 more source

Climate Predicts Tree Dispersal Strategies Across Brazil's Ecosystems

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 7, July 2026.
ABSTRACT Aim We investigate the distribution of dispersal modes—endozoochory (via animal ingestion), synzoochory (via animal seed accumulation) and anemochory (via wind)—and seed mass of woody plants across Brazilian ecosystems, testing whether their relative abundance in local plant communities could be predicted by climate, edaphic factors and ...
Fernanda C. Souza   +126 more
wiley   +1 more source

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