scholarly journals Accretion of clumpy cold gas onto massive black hole binaries: a possible fast route to binary coalescence

2018 ◽  
Vol 479 (3) ◽  
pp. 3438-3455 ◽  
Author(s):  
Felipe G Goicovic ◽  
Cristián Maureira-Fredes ◽  
Alberto Sesana ◽  
Pau Amaro-Seoane ◽  
Jorge Cuadra
Keyword(s):  
Black Hole ◽  
Massive Black Hole ◽  
Black Hole Binaries ◽  
Fast Route ◽  
Cold Gas

scholarly journals Accretion of clumpy cold gas on to massive black hole binaries: the challenging formation of extended circumbinary structures

2018 ◽  
Vol 478 (2) ◽  
pp. 1726-1748 ◽  
Author(s):  
Cristián Maureira-Fredes ◽  
Felipe G Goicovic ◽  
Pau Amaro-Seoane ◽  
Alberto Sesana
Keyword(s):  
Black Hole ◽  
Massive Black Hole ◽  
Black Hole Binaries ◽  
Cold Gas

scholarly journals The TianQin project: Current progress on science and technology

2020 ◽  
Author(s):  
Jianwei Mei ◽  
Yan-Zheng Bai ◽  
Jiahui Bao ◽  
Enrico Barausse ◽  
Lin Cai ◽  
...  
Keyword(s):  
Black Hole ◽  
Ecliptic Plane ◽  
Mass Ratio ◽  
Massive Black Hole ◽  
Black Hole Binaries ◽  
Compact Binaries ◽  
Single Body ◽  
Science Operations ◽  
New Generation ◽  
Research Facilities

Abstract TianQin is a planned space-based gravitational wave (GW) observatory consisting of three Earth-orbiting satellites with an orbital radius of about $10^5 \, {\rm km}$. The satellites will form an equilateral triangle constellation the plane of which is nearly perpendicular to the ecliptic plane. TianQin aims to detect GWs between $10^{-4} \, {\rm Hz}$ and $1 \, {\rm Hz}$ that can be generated by a wide variety of important astrophysical and cosmological sources, including the inspiral of Galactic ultra-compact binaries, the inspiral of stellar-mass black hole binaries, extreme mass ratio inspirals, the merger of massive black hole binaries, and possibly the energetic processes in the very early universe and exotic sources such as cosmic strings. In order to start science operations around 2035, a roadmap called the 0123 plan is being used to bring the key technologies of TianQin to maturity, supported by the construction of a series of research facilities on the ground. Two major projects of the 0123 plan are being carried out. In this process, the team has created a new-generation $17 \, {\rm cm}$ single-body hollow corner-cube retro-reflector which was launched with the QueQiao satellite on 21 May 2018; a new laser-ranging station equipped with a $1.2 \, {\rm m}$ telescope has been constructed and the station has successfully ranged to all five retro-reflectors on the Moon; and the TianQin-1 experimental satellite was launched on 20 December 2019—the first-round result shows that the satellite has exceeded all of its mission requirements.

scholarly journals On the search of electromagnetic cosmological counterparts to coalescences of massive black hole binaries

2006 ◽  
Vol 372 (2) ◽  
pp. 869-875 ◽  
Author(s):  
M. Dotti ◽  
R. Salvaterra ◽  
A. Sesana ◽  
M. Colpi ◽  
F. Haardt
Keyword(s):  
Black Hole ◽  
Massive Black Hole ◽  
Black Hole Binaries

scholarly journals Massive Black Hole Binaries: Dynamical Evolution and Observational Signatures

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
M. Dotti ◽  
A. Sesana ◽  
R. Decarli
Keyword(s):  
Black Hole ◽  
Galaxy Formation ◽  
Dynamical Evolution ◽  
Wave Spectra ◽  
Galaxy Mergers ◽  
Massive Black Hole ◽  
Theoretical Understanding ◽  
Black Hole Binaries ◽  
Recent Developments ◽  
Open Issues

The study of the dynamical evolution of massive black hole pairs in mergers is crucial in the context of a hierarchical galaxy formation scenario. The timescales for the formation and the coalescence of black hole binaries are still poorly constrained, resulting in large uncertainties in the expected rate of massive black hole binaries detectable in the electromagnetic and gravitational wave spectra. Here, we review the current theoretical understanding of the black hole pairing in galaxy mergers, with a particular attention to recent developments and open issues. We conclude with a review of the expected observational signatures of massive binaries and of the candidates discussed in literature to date.

scholarly journals BOOSTED TIDAL DISRUPTION BY MASSIVE BLACK HOLE BINARIES DURING GALAXY MERGERS FROM THE VIEW OFN-BODY SIMULATION

2017 ◽  
Vol 834 (2) ◽  
pp. 195 ◽  
Author(s):  
Shuo Li ◽  
F. K. Liu ◽  
Peter Berczik ◽  
Rainer Spurzem
Keyword(s):  
Black Hole ◽  
Galaxy Mergers ◽  
Tidal Disruption ◽  
Massive Black Hole ◽  
Black Hole Binaries
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