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Mrk817 Alternate Names: PG1434+590   ACS, HRC, F550M RA = 14:36:22.1   Dec = +58:47:39   z = 0.03146 DL =  134.2 Mpc     DA =  126.1 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): 3.856 (+ 0.608/- 0.588)   (107 Msun) 3.856 (+ 0.608/- 0.588)   (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.
Hβ λ4861	49000 - 49212	20.9 (+ 2.3/- 2.3)	Zu et al. 2011 ApJ, 735, 80	19.0 (+ 3.9/- 3.7)	20.0 (+ 2.0/- 5.0)	1392 (+/- 78)	3515 (+/- 393)	Peterson et al. 1998 ApJ, 501, 82 Peterson et al. 2004 ApJ, 613, 682	43.73 (+/- 0.05)	Bentz et al. 2013 ApJ, 767, 149
Hβ λ4861	49404 - 49528	17.2 (+ 1.9/- 2.7)	Zu et al. 2011 ApJ, 735, 80	15.3 (+ 3.7/- 3.5)	16.0 (+ 3.0/- 4.0)	1971 (+/- 96)	4952 (+/- 537)	Peterson et al. 1998 ApJ, 501, 82	43.61 (+/- 0.05)	Bentz et al. 2013 ApJ, 767, 149
Hβ λ4861	49752 - 49924	35.9 (+ 4.8/- 5.8)	Zu et al. 2011 ApJ, 735, 80	33.6 (+ 6.5/- 7.6)	35.0 (+10.0/- 7.0)	1729 (+/- 158)	3752 (+/- 995)	Peterson et al. 1998 ApJ, 501, 82	43.61 (+/- 0.05)	Bentz et al. 2013 ApJ, 767, 149
Hβ λ4861	54180 - 54330	10.8 (+ 1.5/- 1.0)	Zu et al. 2011 ApJ, 735, 80	14.0 (+ 3.4/- 3.5)	16.0 (+ 3.9/- 5.3)	...	...	Denney et al. 2010 ApJ, 721, 715	43.78 (+/- 0.05)	Bentz et al. 2013 ApJ, 767, 149

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.