Search Results - "Ford, K."
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1
Black hole, neutron star, and white dwarf merger rates in AGN discs
Published in Monthly notices of the Royal Astronomical Society (01-11-2020)“…ABSTRACT Advanced LIGO and Advanced Virgo are detecting a large number of binary stellar origin black hole (BH) mergers. A promising channel for accelerated BH…”
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2
Binary black hole merger rates in AGN discs versus nuclear star clusters: loud beats quiet
Published in Monthly notices of the Royal Astronomical Society (01-12-2022)“…ABSTRACT Galactic nuclei are promising sites for stellar origin black hole (BH) mergers, as part of merger hierarchies in deep potential wells. We show that…”
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3
Hierarchical Black Hole Mergers in Active Galactic Nuclei
Published in Physical review letters (01-11-2019)“…The origins of the stellar-mass black hole mergers discovered by LIGO/Virgo are still unknown. Here we show that if migration traps develop in the accretion…”
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Monte Carlo simulations of black hole mergers in AGN discs: Low χeff mergers and predictions for LIGO
Published in Monthly notices of the Royal Astronomical Society (01-05-2020)“…ABSTRACT Accretion discs around supermassive black holes are promising sites for stellar mass black hole mergers detectable with LIGO. Here we present the…”
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5
Aligning nuclear cluster orbits with an active galactic nucleus accretion disc
Published in Monthly notices of the Royal Astronomical Society (01-12-2020)“…ABSTRACT Active galactic nuclei (AGN) are powered by the accretion of discs of gas on to supermassive black holes (SMBHs). Stars and stellar remnants orbiting…”
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6
A new physical interpretation of optical and infrared variability in quasars
Published in Monthly notices of the Royal Astronomical Society (11-11-2018)“…Changing-look quasars are a recently identified class of active galaxies in which the strong UV continuum and/or broad optical hydrogen emission lines…”
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Orbital Migration of Interacting Stellar Mass Black Holes in Disks around Supermassive Black Holes. II. Spins and Incoming Objects
Published in The Astrophysical journal (01-11-2020)“…The masses, rates, and spins of merging stellar mass binary black holes (BBHs) detected by aLIGO and Virgo provide challenges to traditional BBH formation and…”
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On the rate of black hole binary mergers in galactic nuclei due to dynamical hardening
Published in Monthly notices of the Royal Astronomical Society (01-03-2018)Get full text
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9
Orbital Migration of Interacting Stellar Mass Black Holes in Disks around Supermassive Black Holes
Published in The Astrophysical journal (20-06-2019)“…The merger rate of stellar-mass black hole binaries (sBHBs) inferred by the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) suggests the…”
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10
Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO
Published in The Astrophysical journal (10-10-2018)“…Black hole (BH) mergers detectable with the Laser Interferometer Gravitational-wave Observatory (LIGO) can occur in active galactic nucleus (AGN) disks. Here…”
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11
Understanding extreme quasar optical variability with CRTS – II. Changing-state quasars
Published in Monthly notices of the Royal Astronomical Society (01-02-2020)“…ABSTRACT We present the results of a systematic search for quasars in the Catalina Real-time Transient Survey exhibiting both strong photometric variability…”
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12
In-plane tidal disruption of stars in discs of active galactic nuclei
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT Stars embedded in active galactic nucleus (AGN) discs or captured by them may scatter onto the supermassive black hole (SMBH), leading to a tidal…”
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13
Tidal disruption events from three-body scatterings and eccentricity pumping in the discs of active galactic nuclei
Published in Monthly notices of the Royal Astronomical Society (13-05-2024)“…ABSTRACT Tidal disruption events (TDEs) are routinely observed in quiescent galaxies, as stars from the nuclear star cluster are scattered into the loss cone…”
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14
Measuring the Properties of Active Galactic Nuclei Disks with Gravitational Waves
Published in The Astrophysical journal (01-06-2022)“…Abstract Active galactic nuclei (AGNs) are promising environments for the assembly of merging binary black hole (BBH) systems. Interest in AGNs as nurseries…”
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15
A Light in the Dark: Searching for Electromagnetic Counterparts to Black Hole–Black Hole Mergers in LIGO/Virgo O3 with the Zwicky Transient Facility
Published in The Astrophysical journal (01-01-2023)“…Abstract The accretion disks of active galactic nuclei (AGNs) are promising locations for the merger of compact objects detected by gravitational wave (GW)…”
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LIGO–Virgo correlations between mass ratio and effective inspiral spin: testing the active galactic nuclei channel
Published in Monthly notices of the Royal Astronomical Society (28-06-2022)“…ABSTRACT Observations by LIGO–Virgo of binary black hole mergers suggest a possible anticorrelation between black hole mass ratio (q = m2/m1) and the effective…”
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17
Latent Stochastic Differential Equations for Modeling Quasar Variability and Inferring Black Hole Properties
Published in The Astrophysical journal (01-04-2024)“…Abstract Quasars are bright and unobscured active galactic nuclei (AGN) thought to be powered by the accretion of matter around supermassive black holes at the…”
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The first high-redshift changing-look quasars
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT We report on three redshift z > 2 quasars with dramatic changes in their C iv emission lines, the first sample of changing-look quasars (CLQs) at high…”
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LIGO tells us LINERs are not optically thick RIAFs
Published in Monthly notices of the Royal Astronomical Society. Letters (01-11-2019)“…ABSTRACT Low ionization nuclear emission-line regions (LINERs) are a heterogeneous collection of up to one-third of galactic nuclei in the local Universe. It…”
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Liquid-Liquid Phase Separation in Physiology and Pathophysiology of the Nervous System
Published in The Journal of neuroscience (03-02-2021)“…Molecules within cells are segregated into functional domains to form various organelles. While some of those organelles are delimited by lipid membranes…”
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