Is general relativity correct theory of gravitation
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Is General Relativity correct theory of gravitation?. Numerous tests of GR exist in weak fields Precession of orbit of Mercury Bending of star light at solar eclipse Gravitational lenses Binary Pulsar Frame dragging (LAGEOS, Gravity Probe B) ‏

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Is General Relativity correct theory of gravitation?

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Is general relativity correct theory of gravitation

Is General Relativity correct theory of gravitation?

  • Numerous tests of GR exist in weak fields

  • Precession of orbit of Mercury

  • Bending of star light at solar eclipse

  • Gravitational lenses

  • Binary Pulsar

  • Frame dragging (LAGEOS, Gravity Probe B)‏

  • New Test: Precession of orbit & emission of gravitational waves in OJ287

  • Strong field -> Black holes


Oj 287

OJ 287

A Binary Black Hole System

Sillanpää et al. 1988, Lehto & Valtonen1996,

Sundelius et al. 1997


Is general relativity correct theory of gravitation

.


Unique solution of the timing problem

Unique solution of the timing problem

  • Six well timed outburts

  • Iterative code

  • Astrophysical effects: disk bending, delay of radiation burst


2005 outburst

2005 outburst


Predictions for 2007 sept no gravitational radiation oct 4

Predictions for 2007 Sept no gravitational radiation: Oct 4

  • OJ 287 timing models

  • eccentricity

  • 0.668 0.668 0.6667 0.655

  • precession

  • 37.0 36.9 37.0 39.2

  • delay

  • 0.75 0.70 0.75 1.0

  • 1913.01

  • 1956.27 1956.18 1956.24 1956.97

  • 1963.74 1963.81 1963.69 1964.02

  • 1972.97 1972.97 1972.97 1972.97

  • 1984.15 1984.15 1984.15 1984.14

  • 1994.66 1994.66 1994.65 1994.60

  • 1995.85 1995.85 1995.85 1995.88

  • 2005.78 2005.78 2005.77 2005.76

  • 2007.68 2007.68 2007.69 2007.70

  • Sept 5 Sept 5 Sept 9 Sept 13


Harvard plates basta hudec

Harvard plates: Basta & Hudec


1963 1964 new data

1963-1964: new data


Oj287 in september 2007

OJ287 in September 2007


Future optical light curve

Future optical light curve


Oj 287 optical variations

OJ 287 optical variations

1. Jet wobble, 60 yr cycle + 12 yr steps

2. Tidal variations in jet flow, 12 yr cycle

3. Disk impacts, advance relative to the 12 year cycle due to precession

Complete solution of the problem: timing of 6 outbursts


Jet wobble

Jet wobble


From jet wobble to magnitude variations

From jet wobble to magnitude variations


Tidal variations in jet flow 1972

Tidal variations in jet flow: 1972


Tidal variations in jet flow 1996

Tidal variations in jet flow: 1996


In radio two processes

In radio: two processes


Three processes vs optical light curve

Three processes vs. optical light curve


Is general relativity correct theory of gravitation

.

No outburst in hard X-rays; outburst in soft X-rays


At outburst

At outburst


Pre outburst

Pre-outburst


Predictions rotation of radio jet

Predictions: rotation of radio jet

  • .


Is general relativity correct theory of gravitation

.


Radio jet p a

Radio jet P.A.


Is general relativity correct theory of gravitation

RADIO JET ORIENTATION AND THE PRECESSING BINARY BLACK HOLE

MODEL OF OJ287

M.J. VALTONEN, K.WIIK AND T.SAVOLAINEN

Department of Physics and Tuorla Observatory, University of Turku, Finland


Under preparation

Under preparation

The structure of the November 2005 outburst in OJ287 and the precessing binary black hole model

Mauri Valtonen1, Mark Kidger2,3, Harry Lehto4 & Gary Poyner5


Binary model

Binary model


1983 1994 2005 outbursts

1983, 1994 & 2005 outbursts

  • Time scales:

    0.06 yr, 0.08 yr, 0.12 yr


Predictions historical light curve outburst in 1956

Predictions: historical light curve outburst in 1956


2005 outburst twice as long as 1983 outburst

2005 outburst twice as long as 1983 outburst


1983 1994 2005 outbursts1

1983, 1994 & 2005 outbursts

  • Time scales:

    22 d, 29 d, 45 d

    Relative timing:

    1982.99

    1994.72

    2005.77


After outburst light curve

After outburst light curve

  • 1 time unit = 0.06 yr


Structure the same in 2005 as in 1983 but a factor of two slower

Structure the same in 2005 as in 1983, but a factor of two slower

  • 3 peak structure

The structure of the November 2005 outburst in OJ287 and the precessing binary black hole model[1]

Mauri Valtonen1,2, Mark Kidger3,4, Harry Lehto1,5 & Gary Poyner6

[1] Prepared in part with observations from the Bradford Robotic Telescope at the Instituto de Astrofísica de Canarias’s Teide Observatory.


2005 1983 same total energy

2005 & 1983: same total energy

2005: 4 months; 1983: 2 months, 2x brighter


Overall properties of steady accretion rate disks

Overall properties of steady accretion rate disks

  • Vertical structure

Mach number

 These accretion disks are thin.


Is general relativity correct theory of gravitation

Radio data: no outburst


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