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NGC4051 Alternate Names:   WFC3, UVIS, F547M RA = 12:03:09.6   Dec = +44:31:53   z = 0.00234 D = 16.6 +/- 0.3 Mpc  method = Cepheids DL =  9.8 Mpc     DA =  9.7 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): 0.077 (+ 0.018/- 0.023)   (107 Msun) 0.078 (+ 0.017/- 0.022)   (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	56645 - 56864	4.9 (+ 0.3/- 0.1)	Fausnaugh et al. 2017 ApJ, 840, 97	2.8 (+ 1.8/- 2.8)	2.8 (+ 1.9/- 3.1)	641 (+/- 57)	1098 (+/- 32.5)	Fausnaugh et al. 2017 ApJ, 840, 97	41.73 (+/- 0.11)	Dalla Bonta et al. 2020 ApJ, 903, 112
He II λ4686	56645 - 56864	0.1 (+ 0.2/- 0.2)	Fausnaugh et al. 2017 ApJ, 840, 97	0.3 (+ 0.3/- 0.4)	0.2 (+ 0.4/- 0.4)	1689 (+/- 37)	3885 (+/- 258.5)	Fausnaugh et al. 2017 ApJ, 840, 97	41.73 (+/- 0.11)	Dalla Bonta et al. 2020 ApJ, 903, 112
Hβ λ4861	54180 - 54311	2.50 (+0.10/-0.10)	Zu et al. 2011 ApJ, 735, 80	1.87 (+0.54/-0.50)	2.60 (+0.79/-1.40)	927 (+/- 64)	1034 (+/- 41)	Denney et al. 2009 ApJ, 702, 1353	41.96 (+/- 0.20)	Bentz et al. 2013 ApJ, 767, 149
Hβ λ4861	56645 - 56864	2.4 (+ 0.4/- 0.5)	Fausnaugh et al. 2017 ApJ, 840, 97	2.9 (+ 0.9/- 1.3)	2.4 (+ 1.0/- 1.9)	493 (+/- 35)	941 (+/- 18)	Fausnaugh et al. 2017 ApJ, 840, 97	41.73 (+/- 0.11)	Dalla Bonta et al. 2020 ApJ, 903, 112

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.