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Milosavljevic
Course: BH 2006, Fall 2009School: Harvard
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Hole Black Binaries Milos Milosavljevic California Institute of Technology & Hubble Fellowship 05/16/06 1 log cosmic density per log ma stell ar binar ies unknown Milky Way quasars 101 102 103 104 105 106 107 108 109 solar masse 2 05/16/06 QuickTimeTM and a YUV420 codec decompressor are needed to see this picture. 05/16/06 Stefan Gottloeber (AIP, Potsdam) & collaborators 3 Rodriguez,...
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Hole Black Binaries
Milos Milosavljevic
California Institute of Technology & Hubble Fellowship
05/16/06
1
log cosmic density per log ma
stell ar binar ies unknown Milky Way quasars
101 102 103 104 105 106 107 108 109 solar masse
2
05/16/06
QuickTimeTM and a YUV420 codec decompressor are needed to see this picture.
05/16/06
Stefan Gottloeber (AIP, Potsdam) & collaborators
3
Rodriguez, Taylor, Zavala, Peck et al. 2006 - see poster!!! Owen, O'Dea, Inoue, Eilek, NRAO/AUI, Twin radio jets in Abell 400: two black holes in the same galaxy!
QuickTimeTM and a TIFF (Uncompressed) decompressor are needed to see this picture.
05/16/06
NASA/CXC/MPE/S. Komossa et al. Ultraluminous infrared galaxy NGC6240 contains two accreting black holes separated by 2 kpc.
4
Mergers Proceed on a Dynamical Time
N-body simulation: Milosavljevic & Merritt 2001
10-100 pc
"Hard" binary forms when black hole separation becomes smaller than the radius of dynamical 05/16/06 influence, a < rbh
5
rms velocity (km/s)
05/16/06
Joseph et al. 2001, HST/STIS RMS stellar velocity at center of dwarf galaxy position along a slit (arcsec) Central rise 6 M32. ~(GMbh/r)1/2 is a
QuickTimeTM and a TIFF (LZW) decompressor are needed to see this picture.
Gravitational Wave Emission
QuickTimeTM and a YUV420 codec decompressor are needed to see this picture.
Simulation: Frans Pretorius (U
05/16/06 7
binary's semi-major axis (parsec)
The Final Parsec "Problem"
GALAXY MERGER
galaxy merger
log(decay timescale)
the bottleneck
diffu sion
Milk y Way
COALESCENCE
binary forms coalescence
black hole mass (solar mass)
log(decay radius)
Begelman, Blandford, Rees 1980
05/16/06 8 cor
Gravitational Slingshot Interaction
star
binary V sin 2U + V cos U V sin V cos
05/16/06
9
The Loss Cone
circular orbit
diffusion
Makino & Funato 2004 radial orbit
05/16/06
10
Loss cone refilling by merger tides?
Zhao, Haehnelt, Rees 2002
satellite's orbital satellite's angular velocity
satellite
T
star
05/16/06
star's angular velocity rate at which 1-e changes by order unity 11
Loss cone refilling in non-spherical potentials
Magorrian & Tremaine 1999, Yu 2002, Merritt & Poon 2004
05/16/06
12
HST/ACS VCS, Ferrarese et al
100 pc
05/16/06 13
Gas around Binary Black Holes: Alignment
(variant Bardeen-Petterson effect)
Less Precession More Precession
Gas Orbits Gas Orbits
05/16/06
14
GG Tau
Duchene, McCabe, Ghez & Macintosh 2004, w/Keck at 3.8 m
GG Tau: Potter/Hawaii/Gemini/AURA/NSF
05/16/06
15
QuickTimeTM and a TIFF (Uncompressed) decompressor are needed to see this picture.
Torque Balance and Disk Truncation
QuickTimeTM and a TIFF (Uncompressed) decompressor are needed to see this picture.
ASC FLASH simulation, & MacFadyen MM 2006
05/16/06
rbh
16
QuickTimeTM and a YUV420 codec decompressor are needed to see this picture.
05/16/06
17
QuickTimeTM and a YUV420 codec decompressor are needed to see this picture.
05/16/06
18
The Final Year
MM & Phinney 2005
05/16/06
19
The Final Year
MM & Phinney 2005
05/16/06
20
The Final Year
MM & Phinney 2005
05/16/06
21
Spectral Evolution
MM & Phinney 200 after
before
Thermal accretion disk spectra before and after decoupling and coalescence. Thermal Xray emission is absent before coalescence.
05/16/06 22
Cosmology with Black Hole Mergers
Gravitational wave train
luminosity distance but not redshift (redshift degenerate with mass). localization: arcminutes to degrees thousand host galaxy candidates!
Hughes 2002, Holz & Hughes 2005 Kocsis et al. 2006
Monitoring in X-rays at high spatial resolution
afterglow host galaxy identification, redshift "standard candle" (independent distance and redshift) confusion due to lensing
Distance-redshift relation, cosmology
05/16/06 23
Future: MBH Assembly in the Time Domain
Guenther, Schaefer, Kley 2004
MacFadyen & MM, in prep.
LSST 24
05/16/06
Confusion: Tidal Disruptions!
QuickTimeTM and a TIFF (Uncompressed) decompressor are needed to see this picture.
NASA/CXC/SAO
S. Komossa
05/16/06
25
Stellar mass density as a function of distance from the center of the galaxy: cusps and cores (Gebhardt et al. 1996)
05/16/06 MM 2002, data: Rest et al./WFPC2 26
Core Depletion
Faber et al. 1997, MM et al. 2002
The Mass Deficit
Definition: The mass that had to be removed to produce the observed, cent...
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