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PG0052+251
Alternate Names:
  ACS, HRC, F550M
RA = 00:54:52.1   Dec = +25:25:38   z = 0.15445
DL =  715.9 Mpc     DA =  537.2 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): 		23.950 (+ 6.931/- 6.830)   (107 Msun)
28.955 (+ 6.079/- 5.649)   (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.
Hγ
λ4340
48461 - 51084
154.9
(+ 1.9/- 1.9)
Zu et al. 2011 ApJ, 735, 80
81.6
(+19.5/-15.9)
65.0
(+10.0/- 6.0)
2230
(+/- 502)
5633
(+/- 3585)
Kaspi et al. 2000 ApJ, 533, 631

Peterson et al. 2004 ApJ, 613, 682
44.75
(+/- 0.03)
Bentz et al. 2013 ApJ, 767, 149
Hβ
λ4861
48461 - 51084
149.3
(+ 4.2/- 1.8)
Zu et al. 2011 ApJ, 735, 80
89.8
(+24.5/-24.1)
68.0
(+16.0/-12.0)
1783
(+/- 86)
4165
(+/- 381)
Kaspi et al. 2000 ApJ, 533, 631

Peterson et al. 2004 ApJ, 613, 682
44.75
(+/- 0.03)
Bentz et al. 2013 ApJ, 767, 149
Hα
λ6563
48837 - 51084
157.6
(+ 2.3/- 2.8)
Zu et al. 2011 ApJ, 735, 80
163.7
(+58.5/-38.3)
168.0
(+82.0/-77.0)
1913
(+/- 85)
...
Kaspi et al. 2000 ApJ, 533, 631

Peterson et al. 2004 ApJ, 613, 682
...
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.