How does the host galaxy affect the BH virial mass estimates? · 2018. 10. 13. · Z ~ 0.1 Ludovica...
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How does the host galaxy affect the BH virial mass estimates? Ludovica Varisco 10 ottobre 2018
Transcript of How does the host galaxy affect the BH virial mass estimates? · 2018. 10. 13. · Z ~ 0.1 Ludovica...
How does the host galaxy affect the BH virial mass estimates?
Ludovica Varisco 10 ottobre 2018
Proxy of BLR velocities
MBH = αFWHM2 Lβ
cont
G
Proxy of BLR size
10 ottobre 2018
VIRIAL MASS ESTIMATES
Ludovica Varisco
Ludovica Varisco 10 ottobre 2018
Proxy of BLR velocities
MBH = αFWHM2 Lβ
cont
G
Proxy of BLR size
VIRIAL MASS ESTIMATES
QSFit (Calderone
M = 0 . 813 × 108 (FWHMHβ
1000 km/s )2
( L5100
1046 erg/s )0.5
M⊙
Vestergaard & Peterson (2006).
10 ottobre 2018
Proxy of BLR velocities
MBH = αFWHM2 Lβ
cont
G
Proxy of BLR size
VIRIAL MASS ESTIMATES
Ludovica Varisco
QSFit (Calderone
10 ottobre 2018
M = 0 . 813 × 108 (FWHMHβ
1000 km/s )2
( L5100
1046 erg/s )0.5
M⊙
Vestergaard & Peterson (2006).
Proxy of BLR velocities
MBH = αFWHM2 Lβ
cont
G
Proxy of BLR size
VIRIAL MASS ESTIMATES
Ludovica Varisco
S A M P L E S E L E C T I O N
z ≲ 0 . 7
Shen et al. 2011Shen’s catalog
10 ottobre 2018Ludovica Varisco
10 578 sources
10 ottobre 2018
z ≲ 0 . 7
Shen et al. 2011Shen’s catalog
S A M P L E S E L E C T I O N
Ludovica Varisco
Ludovica Varisco 10 ottobre 2018
10 578 sources
z ≲ 0 . 7
Shen et al. 2011
S A M P L E S E L E C T I O NShen’s catalog
Calderone et al. 2017
Reliable fit9107 sources
10 ottobre 2018
10 578 sources
z ≲ 0 . 7
Shen et al. 2011Shen’s catalog
S A M P L E S E L E C T I O N
Calderone et al. 2017
Ludovica Varisco
Final sample
10 ottobre 2018
Reliable fit9107 sources
10 578 sources
z ≲ 0 . 7
Shen et al. 2011Shen’s catalog
S A M P L E S E L E C T I O N
Calderone et al. 2017
Ludovica Varisco
Q S F I T S P E C T R A A N A LY S I S
balmer continuum componenthost galaxy component
10 ottobre 2018Ludovica Varisco
B A L M E R C O M P O N E N T
10 ottobre 2018Ludovica Varisco
B A L M E R C O M P O N E N T
10 ottobre 2018Ludovica Varisco
H O S T G A L A X Y C O M P O N E N T
10 ottobre 2018
Z ~ 0.7
-0.1
0
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0.9
2500 3000 3500 4000 4500 5000
Lum
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sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-0414-51901-0168.fits, z=0.7086, E(B-V)=0.10693
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
Ludovica Varisco
10 ottobre 2018
-0.1
0
0.1
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Lum
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sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-0414-51901-0168.fits, z=0.7086, E(B-V)=0.10693
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
H O S T G A L A X Y C O M P O N E N T
Z ~ 0.7
Ludovica Varisco
10 ottobre 2018
-0.01
0
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4000 4500 5000 5500 6000 6500 7000 7500 8000
Lum
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sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-1822-53172-0308.fits, z=0.1098, E(B-V)=0.069075
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
H O S T G A L A X Y C O M P O N E N T
Z ~ 0.1
Ludovica Varisco
10 ottobre 2018
-0.01
0
0.01
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0.03
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0.1
4000 4500 5000 5500 6000 6500 7000 7500 8000
Lum
. den
sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-1822-53172-0308.fits, z=0.1098, E(B-V)=0.069075
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
H O S T G A L A X Y C O M P O N E N T
Z ~ 0.1
Ludovica Varisco
10 ottobre 2018
-0.01
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
4000 4500 5000 5500 6000 6500 7000 7500 8000
Lum
. den
sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-1822-53172-0308.fits, z=0.1098, E(B-V)=0.069075
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
H O S T G A L A X Y C O M P O N E N T
Z ~ 0.1
Ludovica Varisco
Affects 1. Continuum luminosity 2. FWHM of the BEL
MBH
10 ottobre 2018
H O S T G A L A X Y C O M P O N E N T
Z ~ 0.7Z ~ 0.1
Ludovica Varisco
M = 0.813 × 108 (FWHMHβ
1000 km/s )2
( L5100
1046erg/s )0.5
M⊙
10 ottobre 2018
H O S T G A L A X Y C O M P O N E N T
Ludovica Varisco
Lcont(QSFit)
FWHM(Shen11)Mmix
MQSFitLcont(QSFit)
FWHM(QSFit)
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H O S T G A L A X Y C O M P O N E N T
Ludovica Varisco
10 ottobre 2018
1. For our sample the Balmer continuum component does not affect significantly the BH mass estimate
C O N C L U S I O N S
Ludovica Varisco
10 ottobre 2018
1. For our sample the Balmer continuum component does not affect significantly the BH mass estimate
C O N C L U S I O N S
Ludovica Varisco
1. For our sample the Balmer continuum component does not affect significantly the BH mass estimate
2. A detailed decomposition of the AGN spectrum is fundamental to minimize mass estimates uncertainties
10 ottobre 2018
C O N C L U S I O N S
Ludovica Varisco
1. For our sample the Balmer continuum component does not affect significantly the BH mass estimate
2. A detailed decomposition of the AGN spectrum is fundamental to minimize mass estimates uncertainties
10 ottobre 2018
C O N C L U S I O N S
Varisco L. et al., 2018, A&A [ https://arxiv.org/abs/1803.08504 ]
Ludovica Varisco
Ludovica Varisco 10 ottobre 2018
Thank you!
M = 0 . 78 × 108 ( L5100
1046erg/s )0.61
(FWHMHβ
1000 km/s )2
M⊙ M = 0 . 813 × 108 ( L5100
1046erg/s )0.5
(FWHMHβ
1000 km/s )2
M⊙
McLure & Dunlop 2004 Vestergaard & Peterson (2006).
10 ottobre 2018
H O S T G A L A X Y C O M P O N E N T
Ludovica Varisco
10 ottobre 2018
G A L A X Y C O R R E C T I O N
Ludovica Varisco
10 ottobre 2018
G A L A X Y C O R R E C T I O N
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
2500 3000 3500 4000 4500 5000
Lum
. den
sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-0514-51994-0029.fits, z=0.7058, E(B-V)=0.0255
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
Ludovica Varisco
10 ottobre 2018
G A L A X Y C O R R E C T I O N
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
2500 3000 3500 4000 4500 5000
Lum
. den
sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-0514-51994-0029.fits, z=0.7058, E(B-V)=0.0255
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
-0.05
0
0.05
0.1
0.15
0.2
0.25
4000 4500 5000 5500 6000 6500 7000 7500 8000
Lum
. den
sity
[1042
erg
s-1
A-1
]
Rest frame wavelength [A]
spec-1951-53389-0614.fits, z=0.0789, E(B-V)=0.011045
DataModel
ContinuumCont. + Galaxy
BalmerIron
BroadNarrow
UnknownCont. lum.
Ludovica Varisco
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