scholarly journals Repeated Imaging of Massive Black Hole Binary Orbits with Millimeter Interferometry: Measuring Black Hole Masses and the Hubble Constant

2018 ◽  
Vol 863 (2) ◽  
pp. 185 ◽  
Author(s):  
Daniel J. D’Orazio ◽  
Abraham Loeb
Keyword(s):  
Black Hole ◽  
Hubble Constant ◽  
Massive Black Hole ◽  
Black Hole Binary ◽  
Black Hole Masses

scholarly journals Astrophysical constraints on massive black hole binary evolution from pulsar timing arrays

2015 ◽  
Vol 455 (1) ◽  
pp. L72-L76 ◽  
Author(s):  
Hannah Middleton ◽  
Walter Del Pozzo ◽  
Will M. Farr ◽  
Alberto Sesana ◽  
Alberto Vecchio
Keyword(s):  
Black Hole ◽  
Massive Black Hole ◽  
Pulsar Timing ◽  
Black Hole Binary ◽  
Binary Evolution

scholarly journals Accretion Disks and Line Emission in AGN

1997 ◽  
Vol 159 ◽  
pp. 56-63
Author(s):  
E. Rokak
Keyword(s):  
Black Hole ◽  
Accretion Disks ◽  
Line Emission ◽  
Hubble Constant ◽  
Lorentz Factor ◽  
Disk Model ◽  
Massive Black Holes ◽  
Relativistic Jet ◽  
Black Hole Masses ◽  
Luminosity Evolution

AbstractIrradiated accretion disks around massive black holes are expected to produce part of the line spectrum of AGN, but most of the disk emission must be thermal, observed at UV wavelengths. The two emission components, lines and continuum, are fitted by a unique accretion-disk model that gives the mass of the black hole and the inclination of the disk. The distribution of the disk inclination in a complete sample of Seyfert 1 galaxies suggests that their nuclei are orientation-selected, affected by strong absorption at low disk latitudes. The black-hole masses in the same sample confirm the long-standing non-linearity between M and L for AGN and the non-causal relationship between nearby Seyfert 1 galaxies and distant quasars (i.e., pure luminosity evolution is ruled out).Irradiated accretion disks are also combined with the relativistic jet model in order to constrain the orientation and the Lorentz factor of 14 superluminal radio sources. At least for a few objects, the line and the radio data are inconsistent with both models, unless a new parameter (jet bending, a second emission-line component, etc.), is also involved. Despite this inconsistency and the ambiguous evidence for combined disk and jet fits in the remaining superluminal sources, a successful merger of these two models might address questions about the nature of AGN and also constrain the Hubble constant.

scholarly journals Tidal disruption events by a massive black hole binary

2016 ◽  
Vol 458 (2) ◽  
pp. 1712-1727 ◽  
Author(s):  
Angelo Ricarte ◽  
Priyamvada Natarajan ◽  
Lixin Dai ◽  
Paolo Coppi
Keyword(s):  
Black Hole ◽  
Tidal Disruption ◽  
Massive Black Hole ◽  
Black Hole Binary

scholarly journals Pulsar timing constraints on the Fermi massive black hole binary blazar population

2018 ◽  
Vol 481 (1) ◽  
pp. L74-L78 ◽  
Author(s):  
A Miguel Holgado ◽  
Alberto Sesana ◽  
Angela Sandrinelli ◽  
Stefano Covino ◽  
Aldo Treves ◽  
...  
Keyword(s):  
Black Hole ◽  
Timing Constraints ◽  
Massive Black Hole ◽  
Pulsar Timing ◽  
Black Hole Binary
Sign in / Sign up

Export Citation Format

Share Document