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View article: Full band all-sky search for periodic gravitational waves in the O1 LIGO data
Full band all-sky search for periodic gravitational waves in the O1 LIGO data Open
We report on a new all-sky search for periodic gravitational waves in the frequency band 475-2000 Hz and with a frequency time derivative in the range of [-1.0,+0.1]×10-8 Hz/s. Potential signals could be produced by a nearby spinning and s…
View article: GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences
GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences Open
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 stars estimated from this event suggests that distant, unre…
Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background Open
The detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitational waves. While general relativity allows for only two tenso…
View article: Full band all-sky search for periodic gravitational waves in the O1 LIGO data
Full band all-sky search for periodic gravitational waves in the O1 LIGO data Open
We report on a new all-sky search for periodic gravitational waves in the\nfrequency band 475-2000 Hz and with a frequency time derivative in the range of\n[-1.0e-8, +1e-9] Hz/s. Potential signals could be produced by a nearby spinning\nan…
Constraints on cosmic strings using data from the first Advanced LIGO observing run Open
Cosmic strings are topological defects which can be formed in grand unified theory scale phase transitions in the early universe. They are also predicted to form in the context of string theory. The main mechanism for a network of Nambu-Go…
GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences Open
The LIGO Scientific and Virgo Collaborations have announced the event GW170817, the first detection of gravitational waves from the coalescence of two neutron stars. The merger rate of binary neutron stars estimated from this event suggest…
First Search for Nontensorial Gravitational Waves from Known Pulsars Open
We present results from the first directed search for nontensorial gravitational waves. While general relativity allows for tensorial (plus and cross) modes only, a generic metric theory may, in principle, predict waves with up to six diff…
First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data Open
Spinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the case of known pulsars a fully coherent search, based on matche…
GW170608: Observation of a 19 Solar-mass Binary Black Hole Coalescence Open
On 2017 June 8 at 02:01:16.49 UTC, a gravitational-wave (GW) signal from the merger of two stellar-mass black holes was observed by the two Advanced Laser Interferometer Gravitational-Wave Observatory detectors with a network signal-to-noi…
View article: First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data
First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data Open
We report results of a deep all-sky search for periodic gravitational waves from isolated neutron stars in data from the first Advanced LIGO observing run. This search investigates the low frequency range of Advanced LIGO data, between 20 …
Search for Post-merger Gravitational Waves from the Remnant of the Binary Neutron Star Merger GW170817 Open
The first observation of a binary neutron star (NS) coalescence by the Advanced LIGO and Advanced Virgo gravitational-wave (GW) detectors offers an unprecedented opportunity to study matter under the most extreme conditions. After such a m…
Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817 Open
The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type. The two-week-long electromagnetic (E…
On the Progenitor of Binary Neutron Star Merger GW170817 Open
On 2017 August 17 the merger of two compact objects with masses consistent with two neutron stars was discovered through gravitational-wave (GW170817), gamma-ray (GRB 170817A), and optical (SSS17a/AT 2017gfo) observations. The optical sour…
Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A Open
On 2017 August 17, the gravitational-wave event GW170817 was observed by the Advanced LIGO and Virgo detectors, and the gamma-ray burst (GRB) GRB 170817A was observed independently by the Fermi Gamma-ray Burst Monitor, and the Anti-Coincid…
View article: GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral Open
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, GW170817, was detected with a combined signal-to-noise ratio o…
View article: GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence Open
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 coalescence of two stellar mass black holes, with a false-alarm r…
View article: Upper Limits on Gravitational Waves from Scorpius X-1 from a Model-based Cross-correlation Search in Advanced LIGO Data
Upper Limits on Gravitational Waves from Scorpius X-1 from a Model-based Cross-correlation Search in Advanced LIGO Data Open
We present the results of a semicoherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using data from the first Advanced LIGO observing run. The search method uses details of the modeled, parametri…
All-sky search for periodic gravitational waves in the O1 LIGO data Open
We report on an all-sky search for periodic gravitational waves in the frequency band 20-475 Hz and with a frequency time derivative in the range of [-1.0,+0.1]×10-8 Hz/s. Such a signal could be produced by a nearby spinning and slightly n…
View article: Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO
Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO Open
During their first observational run, the two Advanced LIGO detectors attained an unprecedented sensitivity, resulting in the first direct detections of gravitational-wave signals produced by stellar-mass binary black hole systems. This pa…
Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model Open
Results are presented from a semicoherent search for continuous gravitational waves from the brightest low-mass X-ray binary, Scorpius X-1, using data collected during the first Advanced LIGO observing run. The search combines a frequency …
View article: GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2
GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2 Open
We describe the observation of GW170104, a gravitational-wave signal produced by the coalescence of a pair of stellar-mass black holes. The signal was measured on January 4, 2017 at 10∶11:58.6 UTC by the twin advanced detectors of the Lase…
Search for intermediate mass black hole binaries in the first observing run of Advanced LIGO Open
During their first observational run, the two Advanced LIGO detectors attained an unprecedented sensitivity, resulting in the first direct detections of gravitational-wave signals produced by stellar-mass binary black hole systems. This pa…
Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model Open
Results are presented from a semicoherent search for continuous gravitational waves from the brightest low-mass X-ray binary, Scorpius X-1, using data collected during the first Advanced LIGO observing run. The search combines a frequency …