Keresés
1 találatból megjelenítve: 11-36
Cím: Astrophysical gravitational-wave echoes from galactic nuclei
Szerző: ;
Dátum: 2022
Feltöltve: 2023-07-03
(2022)
Cím: High eccentricities and high masses characterize gravitational-wave captures in galactic nuclei as seen by Earth-based detectors
Szerző: ;
Dátum: 2021
Feltöltve: 2022-12-14
(2021)
Cím: Measurement Accuracy of Inspiraling Eccentric Neutron Star and Black Hole Binaries Using Gravitational Waves
Szerző: ;
Dátum: 2019
Feltöltve: 2020-04-08
(2019)
Cím: Accuracy of Estimating Highly Eccentric Binary Black Hole Parameters with Gravitational-wave Detections
Szerző: ; ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
Mergers of stellar-mass black holes on highly eccentric orbits are among the targets for ground-based gravitational-wave detectors, including LIGO, VIRGO, and KAGRA. These sources may commonly form through gravitational-wave ...
Cím: Gamma-ray and X-ray emission from the Galactic centre: Hints on the nuclear star cluster formation history
Szerző: ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
The Milky Way centre exhibits an intense flux in the gamma and X-ray bands, whose origin is partly ascribed to the possible presence of a large population of millisecond pulsars (MSPs) and cataclysmic variables (CVs), ...
Cím: Diffusion and Mixing in Globular Clusters
Szerző: ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
Collisional relaxation describes the stochastic process with which a self-gravitating system near equilibrium evolves in phase-space due to the fluctuating gravitational field of the system. The characteristic timescale ...
Cím: Hidden Universality in the Merger Rate Distribution in the Primordial Black Hole Scenario
Szerző: ; ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
It has been proposed that primordial black holes (PBHs) form binaries in the radiation dominated era. Once formed, some fraction of them may merge within the age of the universe by gravitational radiation reaction. We ...
Cím: Eccentric Black Hole Gravitational-wave Capture Sources in Galactic Nuclei: Distribution of Binary Parameters
Szerző: ; ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
Mergers of binary black holes on eccentric orbits are among the targets for second-generation ground-based gravitational-wave detectors. These sources may commonly form in galactic nuclei due to gravitational-wave emission ...
Cím: Compact Object Mergers Driven by Gas Fallback
Szerző: ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
Recently, several gravitational wave detections have shown evidence for compact object mergers. However, the astrophysical origin of merging binaries is not well understood. Stellar binaries are typically at much larger ...
Cím: Merging binaries in the Galactic Center: the eccentric Kozai-Lidov mechanism with stellar evolution
Szerző: ; ; ; ; ; ;
Dátum: 2016
Feltöltve: 2020-04-08
(2016)
Most, if not all, stars in the field are born in binary configurations or higher multiplicity systems. In dense stellar environment such as the Galactic Center (GC), many stars are expected to be in binary configurations ...
Cím: Gravitational Waves and Intermediate-mass Black Hole Retention in Globular Clusters
Szerző: ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
The recent discovery of gravitational waves (GWs) has opened new horizons for physics. Current and upcoming missions, such as LIGO, VIRGO, KAGRA, and LISA, promise to shed light on black holes of every size from stellar ...
Cím: Rapid and Bright Stellar-mass Binary Black Hole Mergers in Active Galactic Nuclei
Szerző: ; ; ;
Dátum: 2017
Feltöltve: 2020-04-08
(2017)
The Laser Interferometer Gravitational-wave Observatory (LIGO) found direct evidence for double black hole binaries emitting gravitational waves. Galactic nuclei are expected to harbor the densest population of stellar-mass ...
Cím: Black Hole Mergers in Galactic Nuclei Induced by the Eccentric Kozai-Lidov Effect
Szerző: ; ; ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
Nuclear star clusters around a central massive black hole (MBH) are expected to be abundant in stellar black hole (BH) remnants and BH-BH binaries. These binaries form a hierarchical triple system with the central MBH, and ...
Cím: Detecting Triple Systems with Gravitational Wave Observations
Szerző: ; ;
Dátum: 2017
Feltöltve: 2020-04-08
(2017)
The Laser Interferometer Gravitational Wave Observatory (LIGO) has recently discovered gravitational waves (GWs) emitted by merging black hole binaries. We examine whether future GW detections may identify triple companions ...
Cím: DISRUPTED GLOBULAR CLUSTERS CAN EXPLAIN the GALACTIC CENTER GAMMA-RAY EXCESS
Szerző: ;
Dátum: 2015
Feltöltve: 2020-04-08
(2015)
The Fermi satellite has recently detected gamma-ray emission from the central regions of our Galaxy. This may be evidence for dark matter particles, a major component of the standard cosmological model, annihilating to ...
Cím: Testing the Binary Hypothesis: Pulsar Timing Constraints on Supermassive Black Hole Binary Candidates
Szerző: ; ; ;
Dátum: 2018
Feltöltve: 2020-04-08
(2018)
The advent of time domain astronomy is revolutionizing our understanding of the universe. Programs such as the Catalina Real-time Transient Survey (CRTS) or the Palomar Transient Factory (PTF) surveyed millions of objects ...
Cím: DYNAMICAL FORMATION SIGNATURES OF BLACK HOLE BINARIES IN THE FIRST DETECTED MERGERS BY LIGO
Szerző: ; ;
Dátum: 2016
Feltöltve: 2020-04-08
(2016)
The dynamical formation of stellar-mass black hole-black hole binaries has long been a promising source of gravitational waves for the Laser Interferometer Gravitational-Wave Observatory (LIGO). Mass segregation, gravitational ...
Cím: Premerger localization of gravitational wave standard sirens with LISA: Triggered search for an electromagnetic counterpart
Szerző: ; ;
Dátum: 2008
Feltöltve: 2020-08-11
(2008)
Electromagnetic ( EM) counterparts to SMBH binary mergers observed by LISA can be localized to within the field of view of astronomical instruments (similar to 10 deg(2)) hours to weeks prior to coalescence. The temporal ...
Cím: Periastron precession measurements in transiting extrasolar planetary systems at the level of general relativity
Szerző: ;
Dátum: 2008
Feltöltve: 2020-08-11
(2008)
Transiting exoplanetary systems are surpassingly important among the planetary systems since they provide the widest spectrum of information for both the planet and the host star. If a transiting planet is on an eccentric ...
Cím: THE POPULATION OF VISCOSITY- AND GRAVITATIONAL WAVE-DRIVEN SUPERMASSIVE BLACK HOLE BINARIES AMONG LUMINOUS ACTIVE GALACTIC NUCLEI
Szerző: ; ;
Dátum: 2009
Feltöltve: 2020-08-11
(2009)
Supermassive black hole binaries (SMBHBs) in galactic nuclei are thought to be a common by-product of major galaxy mergers. We use simple disk models for the circumbinary gas and for the binary-disk interaction to follow ...
Cím: AGN Disks Harden the Mass Distribution of Stellar-mass Binary Black Hole Mergers
Szerző: ; ; ; ; ; ;
Dátum: 2019
Feltöltve: 2020-08-08
(2019)
Cím: Gas-driven massive black hole binaries: signatures in the nHz gravitational wave background
Szerző: ;
Dátum: 2011
Feltöltve: 2020-08-11
(2011)
Pulsar timing arrays (PTAs) measure nHz frequency gravitational waves (GWs) generated by orbiting massive black hole binaries (MBHBs) with periods between 0.1 and 10 yr. Previous studies on the nHz GW background assumed ...
Cím: Premerger localization of gravitational-wave standard sirens with LISA: Harmonic mode decomposition
Szerző: ; ; ;
Dátum: 2007
Feltöltve: 2020-08-08
(2007)
The continuous improvement in localization errors (sky position and distance) in real time as LISA observes the gradual inspiral of a supermassive black hole binary can be of great help in identifying any prompt electromagnetic ...
Cím: Can virialization shocks be detected around galaxy clusters through the Sunyaev-Zel'dovich effect?
Szerző: ; ;
Dátum: 2005
Feltöltve: 2020-08-08
(2005)
In cosmological structure formation models, massive nonlinear objects
in the process of formation, such as galaxy clusters, are surrounded by
large-scale shocks at or around the expected virial radius. Direct
observational ...
Cím: Finding the electromagnetic counterparts of cosmological standard sirens
Szerző: ; ; ;
Dátum: 2006
Feltöltve: 2020-08-08
(2006)
The gravitational waves (GWs) emitted during the coalescence of
supermassive black holes (SMBHs) in the mass range similar to 10(4) -
10(7) M-circle dot/(1 + z) will be detectable out to high redshifts
with the future Laser ...