General Relativity Spacetime tells matter how to move; matter tells - - PowerPoint PPT Presentation

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General Relativity Spacetime tells matter how to move; matter tells - - PowerPoint PPT Presentation

General Relativity Spacetime tells matter how to move; matter tells spacetime how to curve. John Wheeler 3 Gravitational Waves Strain on spacetime. Generated by time-varying quadrupole moment. Propagate at speed of light. Unimpeded


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“Spacetime tells matter how to move; matter tells spacetime how to curve.” — John Wheeler

General Relativity

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Strain on spacetime. Generated by time-varying quadrupole moment. Propagate at speed of light. Unimpeded by matter.

Gravitational Waves

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credit: wikipedia

0.000000000000000000001

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Hanford, WA Livingston, LA Pisa, Italy

LIGO-Virgo Network

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O1 BBH: Abbott et al. (2016) PRX 6, 041015 GW170104: Abbott et al. (2017) PRL 118, 221101 GW170608: Abbott et al. (2017) ApJL 851 L35 GW170814: Abbot et al. (2017) PRL 119, 141101

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Isolated (“Field”) Formation

Belczynski et al. (2016)

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credit: Carl Rodriguez

Dynamical Formation

Rodriguez et al. (2016)

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prior

Black Hole Spins

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GW150914

BH spin not extremal

Abbott et al. (2016):

PRX 6, 041015

Black Hole Spins

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LVT151012

Abbott et al. (2016):

PRX 6, 041015

Black Hole Spins

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GW151226

At least one spinning BH

Abbott et al. (2016):

PRX 6, 041015

Black Hole Spins

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GW151226

At least one spinning BH

Abbott et al. (2016):

PRX 6, 041015

Black Hole Spins

χeff = m1a1 cos θ1 + m2a2 cos θ2 m1 + m2

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O1 + (some of) O2

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Farr et al (2017): arXiv:1709.07896

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Simple Population Model

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Current Results

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0.0 0.2 0.4 0.6 0.8 1.0 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75

fraction of informative events w/ χeff > 0 (ρ) fraction of informative events (α)

marginal posterior density

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Current Results

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0.0 0.2 0.4 0.6 0.8 1.0 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75

fraction of informative events w/ χeff > 0 (ρ) fraction of informative events (α)

marginal posterior density

Dynamical

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Current Results

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0.0 0.2 0.4 0.6 0.8 1.0 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75

fraction of informative events w/ χeff > 0 (ρ) fraction of informative events (α)

marginal posterior density

Dynamical Field

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Spin Magnitudes

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0.0 0.2 0.4 0.6 0.8 1.0

a

0.0 0.5 1.0 1.5 2.0 2.5 3.0

p(a)

0.0 0.2 0.4 0.6 0.8 1.0

a

0.0 0.5 1.0 1.5 2.0 2.5

p(a)

0.0 0.2 0.4 0.6 0.8 1.0

a

0.0 0.5 1.0 1.5 2.0 2.5 3.0

p(a)

Aligned Isotropic

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GW170817

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Abbott et al. (2017) arXiv:1710.05833

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Abbott et al. (2017) arXiv:1710.05833

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  • 100 -50

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GW γ-ray X-ray UV Optical IR Radio

10-2 t-tc (s) t-tc (days) 10-1 100 101

LIGO, Virgo Fermi, INTEGRAL, Astrosat, IPN, Insight-HXMT, Swift, AGILE, CALET, H.E.S.S., HAWC, Konus-Wind Swift, MAXI/GSC, NuSTAR, Chandra, INTEGRAL Swift, HST Swope, DECam, DLT40, REM-ROS2, HST, Las Cumbres, SkyMapper, VISTA, MASTER, Magellan, Subaru, Pan-STARRS1, HCT, TZAC, LSGT, T17, Gemini-South, NTT, GROND, SOAR, ESO-VLT, KMTNet, ESO-VST, VIRT, SALT, CHILESCOPE, TOROS, BOOTES-5, Zadko, iTelescope.Net, AAT, Pi of the Sky, AST3-2, ATLAS, Danish Tel, DFN, T80S, EABA REM-ROS2, VISTA, Gemini-South, 2MASS,Spitzer, NTT, GROND, SOAR, NOT, ESO-VLT, Kanata Telescope, HST ATCA, VLA, ASKAP, VLBA, GMRT, MWA, LOFAR, LWA, ALMA, OVRO, EVN, e-MERLIN, MeerKAT, Parkes, SRT, Effelsberg SALT ESO-NTT SOAR ESO-VLT 7000o 4000o t-tc (days) 1.2 1.4 2.4

wavelength (nm) normalized Fλ 400 600 1000 2000

INTEGRAL/SPI-ACS Fermi/GBM

t-tc (s)

  • 12 -10 -8 -6 -4 -2 0 2 4 6

counts/s (arb. scale) frequency (Hz) 500 400 300 200 100 50

LIGO - Virgo Chandra 9d J VLA 16.4d Radio Las Cumbres 11.57h w DECam 11.40h iz MASTER 11.31h W VISTA 11.24h YJKs X-ray DLT40 11.08h h 1M2H Swope 10.86h i

Talking Picture

Abbott et al. (2017) arXiv:1710.05833

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Masses

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Abbott et al. (2018) arXiv:1805.11579

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Known NSs

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Opel and Freire (2016)

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  • 100 -50

50

GW γ-ray X-ray UV Optical IR Radio

10-2 t-tc (s) t-tc (days) 10-1 100 101

LIGO, Virgo Fermi, INTEGRAL, Astrosat, IPN, Insight-HXMT, Swift, AGILE, CALET, H.E.S.S., HAWC, Konus-Wind Swift, MAXI/GSC, NuSTAR, Chandra, INTEGRAL Swift, HST Swope, DECam, DLT40, REM-ROS2, HST, Las Cumbres, SkyMapper, VISTA, MASTER, Magellan, Subaru, Pan-STARRS1, HCT, TZAC, LSGT, T17, Gemini-South, NTT, GROND, SOAR, ESO-VLT, KMTNet, ESO-VST, VIRT, SALT, CHILESCOPE, TOROS, BOOTES-5, Zadko, iTelescope.Net, AAT, Pi of the Sky, AST3-2, ATLAS, Danish Tel, DFN, T80S, EABA REM-ROS2, VISTA, Gemini-South, 2MASS,Spitzer, NTT, GROND, SOAR, NOT, ESO-VLT, Kanata Telescope, HST ATCA, VLA, ASKAP, VLBA, GMRT, MWA, LOFAR, LWA, ALMA, OVRO, EVN, e-MERLIN, MeerKAT, Parkes, SRT, Effelsberg SALT ESO-NTT SOAR ESO-VLT 7000o 4000o t-tc (days) 1.2 1.4 2.4

wavelength (nm) normalized Fλ 400 600 1000 2000

INTEGRAL/SPI-ACS Fermi/GBM

t-tc (s)

  • 12 -10 -8 -6 -4 -2 0 2 4 6

counts/s (arb. scale) frequency (Hz) 500 400 300 200 100 50

LIGO - Virgo Chandra 9d J VLA 16.4d Radio Las Cumbres 11.57h w DECam 11.40h iz MASTER 11.31h W VISTA 11.24h YJKs X-ray DLT40 11.08h h 1M2H Swope 10.86h i

Talking Picture

Abbott et al. (2017) arXiv:1710.05833

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EM Counterparts to BNS

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credit: Berger (2014)

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GRB and afterglow

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credit: NASA's Goddard Space Flight Center

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GRB and afterglow

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credit: NASA's Goddard Space Flight Center

credit: Lijnis Nelemans

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Kilonova

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credit:Open Kilonova Catalog Cowperthwaite et al. (2017)

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Standard Siren

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Abbott et al. (2017) arXiv:1710.05835

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Speed of Gravity

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temporal offset: 1.74 ± 0.05 s

−3 × 10−15 ≤ ∆v νEM ≥ +7 × 10−16

Abbott et al. (2017) arXiv:1710.05834

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Conclusions

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GW170817 was most likely a BNS merger Successful observations of kilonova and afterglow emission Novel measurement of Hubble constant Best measurements of the speed of gravity More to come: O3: 1 event per week Design: 1 event per day