scholarly journals Detecting long-duration narrow-band gravitational wave transients associated with soft gamma repeater quasiperiodic oscillations

2013 ◽  
Vol 87 (10) ◽  
Author(s):  
David Murphy ◽  
Maggie Tse ◽  
Peter Raffai ◽  
Imre Bartos ◽  
Rubab Khan ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Narrow Band ◽  
Long Duration ◽  
Soft Gamma Repeater ◽  
Quasiperiodic Oscillations

How to find long narrow-band gravitational wave transients with unknown frequency evolution

2007 ◽  
Vol 24 (19) ◽  
pp. S457-S468 ◽  
Author(s):  
Péter Raffai ◽  
Zsolt Frei ◽  
Zsuzsa Márka ◽  
Szabolcs Márka
Keyword(s):  
Gravitational Wave ◽  
Narrow Band

scholarly journals The binary progenitors of short and long GRBs and their gravitational-wave emission

2018 ◽  
Vol 168 ◽  
pp. 01006
Author(s):  
J. A. Rueda ◽  
R. Ruffini ◽  
J. F. Rodriguez ◽  
M. Muccino ◽  
Y. Aimuratov ◽  
...  
Keyword(s):  
Neutron Star ◽  
Gravitational Wave ◽  
Gamma Ray ◽  
Critical Mass ◽  
Compact Object ◽  
Annual Number ◽  
Black Hole Binaries ◽  
Nuclear Equation Of State ◽  
Long Duration ◽  
Wave Emission

We have sub-classified short and long-duration gamma-ray bursts (GRBs) into seven families according to the binary nature of their progenitors. Short GRBs are produced in mergers of neutron-star binaries (NS-NS) or neutron star-black hole binaries (NS-BH). Long GRBs are produced via the induced gravitational collapse (IGC) scenario occurring in a tight binary system composed of a carbon-oxygen core (COcore) and a NS companion. The COcore explodes as type Ic supernova (SN) leading to a hypercritical accretion process onto the NS: if the accretion is sufficiently high the NS reaches the critical mass and collapses forming a BH, otherwise a massive NS is formed. Therefore long GRBs can lead either to NS-BH or to NS-NS binaries depending on the entity of the accretion. We discuss for the above compact-object binaries: 1) the role of the NS structure and the nuclear equation of state; 2) the occurrence rates obtained from X and gamma-rays observations; 3) the predicted annual number of detections by the Advanced LIGO interferometer of their gravitational-wave emission.

On the Use of Vector-Valued Intensity Measure to Predict Peak and Cumulative Demands of Steel Frames under Narrow-Band Motions

2014 ◽  
Vol 595 ◽  
pp. 137-142 ◽  
Author(s):  
Edén Bojórquez ◽  
Alfredo Reyes-Salazar ◽  
Sonia E. Ruiz
Keyword(s):  
Narrow Band ◽  
Ground Motions ◽  
Steel Frames ◽  
Spectral Shape ◽  
Intensity Measure ◽  
Intensity Measures ◽  
Energy Demands ◽  
Long Duration ◽  
Story Drift ◽  
Vector Valued

In this study, various alternative vector-valued ground motion intensity measures (IMs) are used to estimate maximum inter-story drifts and hysteretic energy demands of steel framed buildings under long duration narrow-band ground motions. The vectors are based on the spectral acceleration at first mode of the structure as first parameterSa (T1). As the second parameter of the vector,IMsrelated to peak, integral and spectral shape parameters are selected. It is concluded that spectral-shape-based vector-valuedIMshave the best relation with maximum inter-story drift and energy demands in steel frames subjected to narrow-band earthquake ground motions.

scholarly journals Search for Long-duration Gravitational-wave Signals Associated with Magnetar Giant Flares

2021 ◽  
Vol 918 (2) ◽  
pp. 80
Author(s):  
A. Macquet ◽  
M. A. Bizouard ◽  
E. Burns ◽  
N. Christensen ◽  
M. Coughlin ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Long Duration

scholarly journals Adaptive transient Hough method for long-duration gravitational wave transients

2019 ◽  
Vol 99 (10) ◽  
Author(s):  
Miquel Oliver ◽  
David Keitel ◽  
Alicia M. Sintes
Keyword(s):  
Gravitational Wave ◽  
Long Duration

scholarly journals Identification of noise artifacts in searches for long-duration gravitational-wave transients

2012 ◽  
Vol 29 (9) ◽  
pp. 095018 ◽  
Author(s):  
Tanner Prestegard ◽  
Eric Thrane ◽  
Nelson L Christensen ◽  
Michael W Coughlin ◽  
Ben Hubbert ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Long Duration

scholarly journals Gravitational-wave searches in the era of Advanced LIGO and Virgo

2021 ◽  
pp. 2130022
Author(s):  
Sarah Caudill ◽  
Shivaraj Kandhasamy ◽  
Claudia Lazzaro ◽  
Andrew Matas ◽  
Magdalena Sieniawska ◽  
...  
Keyword(s):  
Data Analysis ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
The United States ◽  
Compact Binary ◽  
Current State ◽  
Analysis Methods ◽  
Long Duration ◽  
Transient Sources ◽  
Interferometric Detectors

The field of gravitational-wave astronomy has been opened up by gravitational-wave observations made with interferometric detectors. This review surveys the current state-of-the-art in gravitational-wave detectors and data analysis methods currently used by the Laser Interferometer Gravitational-Wave Observatory in the United States and the Virgo Observatory in Italy. These analysis methods will also be used in the recently completed KAGRA Observatory in Japan. Data analysis algorithms are developed to target one of four classes of gravitational waves. Short duration, transient sources include compact binary coalescences, and burst sources originating from poorly modeled or unanticipated sources. Long duration sources include sources which emit continuous signals of consistent frequency, and many unresolved sources forming a stochastic background. A description of potential sources and the search for gravitational waves from each of these classes are detailed.

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