Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars...
Transcript of Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars...
![Page 1: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/1.jpg)
Quasars and Gravitational Lenses in STAR
Selected highlights
STAR Workshop and Mont Rigi - Sept. 15th
D. SLUSE
![Page 2: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/2.jpg)
C. Hauret Cosmology, GL
B. Pradhan GL, quasars
L. Delchambre GL, Gaia
P. Magain Cosmology, GL
B. Agíz Gonzalès Quasars
D. Hutsemékers Quasars, GL, LSS
J-R. Cudell LSS, Dark matter
L. Braibant Quasars, GL
J. Biernaux GL, Dark Matter
D. Sluse GL, quasars
J. Surdej GL, LSS
V. Pelgrims GL, LSS
![Page 3: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/3.jpg)
Changing look quasars
J1011+5442 z = 0.254
13/01/2003
Flux dropped by a factor ~10 in < 10 years Type 1 -> Type 1.9
19/02/2015
Runnoe et al. 2016
Smith et al. 2004
Type 1
Type 2
Dust obscuration (and problem w. Unification model)
OR
True dimming
![Page 4: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/4.jpg)
J1011+5442:
P = 0.15 +/- 0.22 %
Changing look quasars
“Switch-off” of the central engine (Abrupt decrease of Accretion rate)
DH, BAG, DS et al. 2017
![Page 5: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/5.jpg)
Polarization of quasars in LQGs
![Page 6: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/6.jpg)
Polarization of quasars in LQGs
![Page 7: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/7.jpg)
Polarization of quasars in LQGs Quasars are found to be parallel or perpendicular to the main structure axis: this is explained by orientation (and can be accounted for) Statistical test indicate P ~ 1%
that the underlying orientation of intrinsic axis is random
Spin axis // axis of LSS
q // axis
q axis
DH, LB, VP, DS 2014
![Page 8: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/8.jpg)
Gravitational lenses
New technique to measure lens galaxy luminosity profile
Comparison of light and total mass => Dark Matter content
JB+ 2016, 2017
![Page 9: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/9.jpg)
Time delay measurements with COSMOGRAIL
![Page 10: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/10.jpg)
![Page 11: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/11.jpg)
H0 =
71.9+2.4-3.0
km/s/Mpc
![Page 12: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/12.jpg)
Quasar Microlensing
![Page 13: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/13.jpg)
Simulation of microlensing of BELR
![Page 14: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/14.jpg)
Observed signal
Spectral decomposition using 2 spectra: one ML, the other not
LB+ 2014, 2016, 2017
![Page 15: Quasars and Gravitational Lenses in STAR · 2017. 9. 19. · GL, Dark Matter D. Sluse GL, quasars J. Surdej GL, LSS V. Pelgrims GL, LSS . Changing look quasars J1011+5442 z = 0.254](https://reader034.fdocuments.net/reader034/viewer/2022052104/603f928b168160284422861e/html5/thumbnails/15.jpg)
C. Hauret Cosmology, GL
B. Pradhan GL, quasars
L. Delchambre GL, Gaia
P. Magain Cosmology, GL
B. Agíz Gonzalès Quasars
D. Hutsemékers Quasars, GL, LSS
J-R. Cudell LSS, Dark matter
L. Braibant Quasars, GL
J. Biernaux GL, Dark Matter
D. Sluse GL, quasars
J. Surdej GL, LSS
V. Pelgrims GL, LSS