scholarly journals Optimized PyCBC search for gravitational waves from intermediate-mass black hole mergers

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
Koustav Chandra ◽  
V. Villa-Ortega ◽  
T. Dent ◽  
C. McIsaac ◽  
Archana Pai ◽  
...  
Keyword(s):  
Black Hole ◽  
Gravitational Waves ◽  
Intermediate Mass

scholarly journals Gravitational Waves and Intermediate-mass Black Hole Retention in Globular Clusters

2018 ◽  
Vol 856 (2) ◽  
pp. 92 ◽  
Author(s):  
Giacomo Fragione ◽  
Idan Ginsburg ◽  
Bence Kocsis
Keyword(s):  
Black Hole ◽  
Gravitational Waves ◽  
Globular Clusters ◽  
Intermediate Mass

scholarly journals The Taiji program: A concise overview

2020 ◽  
Author(s):  
Ziren Luo ◽  
Yan Wang ◽  
Yueliang Wu ◽  
Wenrui Hu ◽  
Gang Jin
Keyword(s):  
Black Hole ◽  
Gravitational Waves ◽  
Frequency Band ◽  
Space Mission ◽  
Mass Ratio ◽  
Intermediate Mass ◽  
Concise Overview

Abstract Taiji is a Chinese space mission to detect gravitational waves in the frequency band 0.1 mHz to 1.0 Hz, which aims at detecting super (intermediate) mass black hole mergers and extreme (intermediate) mass ratio in-spirals. A brief introduction of its mission overview, scientific objectives, and payload design is presented. A roadmap is also given in which the launching time is set to the 2030s.

scholarly journals mocca-survey Database I: Binary black hole mergers from globular clusters with intermediate mass black holes

2020 ◽  
Vol 498 (3) ◽  
pp. 4287-4294
Author(s):  
Jongsuk Hong ◽  
Abbas Askar ◽  
Mirek Giersz ◽  
Arkadiusz Hypki ◽  
Suk-Jin Yoon
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Gravitational Waves ◽  
Globular Clusters ◽  
Stellar Mass ◽  
Intermediate Mass ◽  
Binary Black Holes ◽  
Black Hole Binaries ◽  
Binary Black Hole ◽  
Intermediate Mass Black Holes

ABSTRACT The dynamical formation of black hole binaries in globular clusters that merge due to gravitational waves occurs more frequently in higher stellar density. Meanwhile, the probability to form intermediate mass black holes (IMBHs) also increases with the density. To explore the impact of the formation and growth of IMBHs on the population of stellar mass black hole binaries from globular clusters, we analyse the existing large survey of Monte Carlo globular cluster simulation data (mocca-survey Database I). We show that the number of binary black hole mergers agrees with the prediction based on clusters’ initial properties when the IMBH mass is not massive enough or the IMBH seed forms at a later time. However, binary black hole formation and subsequent merger events are significantly reduced compared to the prediction when the present-day IMBH mass is more massive than ${\sim}10^4\, \rm M_{\odot }$ or the present-day IMBH mass exceeds about 1 per cent of cluster’s initial total mass. By examining the maximum black hole mass in the system at the moment of black hole binary escaping, we find that ∼90 per cent of the merging binary black holes escape before the formation and growth of the IMBH. Furthermore, large fraction of stellar mass black holes are merged into the IMBH or escape as single black holes from globular clusters in cases of massive IMBHs, which can lead to the significant underpopulation of binary black holes merging with gravitational waves by a factor of 2 depending on the clusters’ initial distributions.

scholarly journals Gravitational waves from eccentric intermediate mass binary black hole mergers

2009 ◽  
Vol 26 (20) ◽  
pp. 204008 ◽  
Author(s):  
Birjoo Vaishnav ◽  
Ian Hinder ◽  
Deirdre Shoemaker ◽  
Frank Herrmann
Keyword(s):  
Black Hole ◽  
Gravitational Waves ◽  
Intermediate Mass ◽  
Binary Black Hole

scholarly journals GRAVITATIONAL WAVES FROM ECCENTRIC INTERMEDIATE-MASS BLACK HOLE BINARIES

2009 ◽  
Vol 692 (1) ◽  
pp. L50-L53 ◽  
Author(s):  
Pau Amaro-Seoane ◽  
M. Coleman Miller ◽  
Marc Freitag
Keyword(s):  
Black Hole ◽  
Gravitational Waves ◽  
Intermediate Mass ◽  
Black Hole Binaries

Gravitational Waves

2018 ◽  
Author(s):  
Michele Maggiore
Keyword(s):  
Black Hole ◽  
Perturbation Theory ◽  
Gravitational Waves ◽  
Transfer Functions ◽  
Normal Modes ◽  
Cosmological Perturbation ◽  
Tests Of General Relativity ◽  
Pulsar Timing ◽  
Tensor Perturbations ◽  
Stochastic Backgrounds

A comprehensive and detailed account of the physics of gravitational waves and their role in astrophysics and cosmology. The part on astrophysical sources of gravitational waves includes chapters on GWs from supernovae, neutron stars (neutron star normal modes, CFS instability, r-modes), black-hole perturbation theory (Regge-Wheeler and Zerilli equations, Teukoslky equation for rotating BHs, quasi-normal modes) coalescing compact binaries (effective one-body formalism, numerical relativity), discovery of gravitational waves at the advanced LIGO interferometers (discoveries of GW150914, GW151226, tests of general relativity, astrophysical implications), supermassive black holes (supermassive black-hole binaries, EMRI, relevance for LISA and pulsar timing arrays). The part on gravitational waves and cosmology include discussions of FRW cosmology, cosmological perturbation theory (helicity decomposition, scalar and tensor perturbations, Bardeen variables, power spectra, transfer functions for scalar and tensor modes), the effects of GWs on the Cosmic Microwave Background (ISW effect, CMB polarization, E and B modes), inflation (amplification of vacuum fluctuations, quantum fields in curved space, generation of scalar and tensor perturbations, Mukhanov-Sasaki equation,reheating, preheating), stochastic backgrounds of cosmological origin (phase transitions, cosmic strings, alternatives to inflation, bounds on primordial GWs) and search of stochastic backgrounds with Pulsar Timing Arrays (PTA).

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