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3C390.3
Alternate Names:
  ACS, HRC, F550M
RA = 18:42:09.0   Dec = +79:46:17   z = 0.0561
DL =  243.5 Mpc     DA =  218.4 Mpc
for  H0 = 72 km s-1 Mpc-1  ΩΛ = 0.7   ΩM = 0.3
< f > :
5.5
Onken+04
5.1
Park+12
4.8
Batiste+17
4.3
Grier+13
2.8
Graham+11
 Other 

MBH calculated using < f > =  4.3
MBH (Hβ only):
MBH (all lines): 		40.486 (+ 4.612/- 4.809)   (107 Msun)
51.363 (+ 3.993/- 4.106)   (107 Msun)


Reverberation Measurements
Line JD Range
(days)		 τJAV
(days)		 τJAV Ref. τcent
(days)		 τpeak
(days)		 σline
(km s-1)		 FWHM
(km s-1)		 RM Ref(s) log LAGN,5100
(ergs s-1)		 L Ref.
Lyα
λ1216
49718 - 50147
11.9
(+34.5/- 4.6)
Zu et al. 2011 ApJ, 735, 80
58.6
(+27.2/-27.2)
59.0
(+30.0/-34.0)
3952
(+/- 203)
8732
(+/- 985)
Obrien et al. 1998 ApJ, 509, 163
43.62
(+/- 0.10)
Bentz et al. 2013 ApJ, 767, 149
C IV
λ1549
49718 - 50147
15.0
(+ 2.0/- 3.0)
Zu et al. 2011 ApJ, 735, 80
35.7
(+11.4/-14.6)
29.0
(+18.0/-21.0)
4400
(+/- 186)
8989
(+/- 2987)
Obrien et al. 1998 ApJ, 509, 163

Peterson et al. 2004 ApJ, 613, 682
43.62
(+/- 0.10)
Bentz et al. 2013 ApJ, 767, 149
Hγ
λ4340
53631 - 53714
32.1
(+17.3/-17.3)
Dietrich et al. 2012 ApJ, 757, 53
31.7
(+11.8/-10.5)
32.0
(+11.5/-10.5)
5191
(+/- 82)
11422
(+/- 1458)
Dietrich et al. 2012 ApJ, 757, 53
44.43
(+/- 0.03)
Bentz et al. 2013 ApJ, 767, 149
Hγ
λ4340
54480 - 56771
...
86
(+ 8/- 7)
57
(+ 56/- 1)
...
...
Sergeev et al. 2017 MNRAS, 465, 1898
...
He II
λ4686
49718 - 50012
...
27.2
(+31.2/-24.8)
27.0
(+32.0/-28.0)
3305
(+/- 237)
8488
(+/- 1842)
Dietrich et al. 1998 ApJ, 115, 185
43.62
(+/- 0.10)
Bentz et al. 2013 ApJ, 767, 149
He II
λ4686
53631 - 53714
36.0
(+ 5.2/- 5.2)
Dietrich et al. 2012 ApJ, 757, 53
24.5
(+ 5.0/- 4.7)
24.5
(+ 6.0/- 5.0)
5125
(+/- 704)
13244
(+/- 960)
Dietrich et al. 2012 ApJ, 757, 53
44.43
(+/- 0.03)
Bentz et al. 2013 ApJ, 767, 149
Hβ
λ4861
48835 - 54423
...
103.0
(+ 3.0/- 9.0)
102.0
(+ 3.0/-10.0)
...
...
Sergeev et al. 2011 MNRAS, 410, 1877
...
Hβ
λ4861
49718 - 50012
27.9
(+ 2.4/- 1.5)
Zu et al. 2011 ApJ, 735, 80
23.6
(+ 6.2/- 6.7)
27.0
(+ 8.0/-11.0)
3105
(+/- 81)
9958
(+/- 1046)
Dietrich et al. 1998 ApJ, 115, 185

Peterson et al. 2004 ApJ, 613, 682
43.62
(+/- 0.10)
Bentz et al. 2013 ApJ, 767, 149
Hβ
λ4861
50100 - 54300
76.0
(+78.8/-55.0)
Kovacevik et al. 2014 AdSpR, 54, 1414
97.0
(+17.0/-17.0)
...
...
12093
(+/- 325)
Shapovalova et al. 2010 A&A, 517, 42
...
Hβ
λ4861
53631 - 53714
47.9
(+ 2.4/- 4.2)
Dietrich et al. 2012 ApJ, 757, 53
46.4
(+ 3.6/- 3.2)
46.5
(+ 5.0/- 3.5)
5455
(+/- 278)
10872
(+/- 1670)
Dietrich et al. 2012 ApJ, 757, 53
44.43
(+/- 0.03)
Bentz et al. 2013 ApJ, 767, 149
Hβ
λ4861
54480 - 56771
...
70
(+ 5/- 3)
53
(+ 13/- 1)
4620
(+/- 231)
9460
(+/- 473)
Sergeev et al. 2017 MNRAS, 465, 1898
...
Hα
λ6563
48834 - 54392
...
169.0
(+14.0/-18.0)
173.0
(+20.0/-39.0)
...
...
Sergeev et al. 2011 MNRAS, 410, 1877
...
Hα
λ6563
50100 - 54300
77.4
(+90.4/-59.0)
Kovacevik et al. 2014 AdSpR, 54, 1414
127.0
(+18.0/-18.0)
...
...
9866
(+/- 723)
Shapovalova et al. 2010 A&A, 517, 42
...
Hα
λ6563
53631 - 53714
52.5
(+ 0.7/- 0.6)
Dietrich et al. 2012 ApJ, 757, 53
56.3
(+ 4.2/- 4.0)
56.5
(+ 3.5/- 4.0)
4839
(+/- 215)
12679
(+/- 1312)
Dietrich et al. 2012 ApJ, 757, 53
44.43
(+/- 0.03)
Bentz et al. 2013 ApJ, 767, 149
Hα
λ6563
54480 - 56771
...
136
(+ 24/- 25)
111
(+ 62/- 5)
4150
(+/- 208)
9480
(+/- 474)
Sergeev et al. 2017 MNRAS, 465, 1898
...
Note: Measurements are provided in the rest frame of the host galaxy. Line widths are measured in the variable (RMS) portion of the spectrum.

Researchers are advised to examine the details and make their own determination of the reliability of any datasets included here.

This object has excluded data.