Emission-line and continuum reverberation mapping of the NLS1 galaxy WPVS 48

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Table 11.

Key parameters of NLS1 galaxies with existing reverberation mapping data: Flux density (2) and variability amplitude (3) of the continuum at 5100 Å, optical luminosity (4), FWHM of the rms profile of Hβ (5), Hβ lag to the optical continuum (6), BH mass (7) and Eddington luminosity (8).

NLS1 Galaxy	F₅₁₀₀	R₅₁₀₀	log λL₅₁₀₀	FWHM_Hβ	τ_Hβ	log M_BH	L/L_Edd	Ref.
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
WPVS 48	2.68	1.37	43.68	1540	$15 . 0_{- 1.9}^{+ 4.5}$ $15.0^{+4.5}_{-1.9}$	$7 . 04_{- 0.06}^{+ 0.12}$ $7.04^{+0.12}_{-0.06}$	$0 . 39_{- 0.10}^{+ 0.06}$ $0.39^{+0.06}_{-0.10}$	this work
Mrk 110	2.79	2.07	43.62	1515	$24 . 2_{- 3.3}^{+ 3.7}$ $24.2^{+3.7}_{-3.3}$	$7 . 29_{- 0.06}^{+ 0.07}$ $7.29^{+0.07}_{-0.06}$	$0 . 27_{- 0.04}^{+ 0.05}$ $0.27^{+0.05}_{-0.04}$	(a), (b)
Mrk 335	5.84	1.57	43.68	1025	$14 . 3_{- 0.7}^{+ 0.7}$ $14.3^{+0.7}_{-0.7}$	$6 . 72_{- 0.03}^{+ 0.03}$ $6.72^{+0.03}_{-0.03}$	$1 . 12_{- 0.06}^{+ 0.06}$ $1.12^{+0.06}_{-0.06}$	(a), (c)
NGC 4051	4.93	1.69	41.96	1034	$1 . 85_{- 0.50}^{+ 0.54}$ $1.85^{+0.54}_{-0.50}$	$5 . 84_{- 0.11}^{+ 0.12}$ $5.84^{+0.12}_{-0.11}$	$0 . 36_{- 0.09}^{+ 0.14}$ $0.36^{+0.14}_{-0.09}$	(a), (d)
NGC 4748	1.15	1.33	42.49	1212	$6 . 30_{- 1.44}^{+ 1.82}$ $6.30^{+1.82}_{-1.44}$	$6 . 51_{- 0.09}^{+ 0.12}$ $6.51^{+0.12}_{-0.09}$	$0 . 20_{- 0.05}^{+ 0.06}$ $0.20^{+0.06}_{-0.05}$	(a), (e)
Ark 564	5.96^*	1.60	43.56	960	$3 . 56_{- 3.56}^{+ 27.44}$ $3.56^{+27.44}_{-3.56}$	$6 . 06_{- 0.31}^{+ 0.94}$ $6.06^{+0.94}_{-0.31}$	4.1_−3.63	(f)
SDSS J113913.91+335551	–	1.57	42.85^†	1450	$12 . 5_{- 1.5}^{+ 0.5}$ $12.5^{+0.5}_{-1.5}$	$6 . 97_{- 0.05}^{+ 0.02}$ $6.97^{+0.02}_{-0.05}$	$0 . 14_{- 0.01}^{+ 0.02}$ $0.14^{+0.02}_{-0.01}$	(g)
PG 0934+013	–	1.53^‡	43.63	1030	$8 . 46_{- 2.14}^{+ 2.08}$ $8.46^{+2.08}_{-2.14}$	$6 . 50_{- 0.10}^{+ 0.10}$ $6.50^{+0.10}_{-0.10}$	$1 . 70_{- 0.34}^{+ 0.58}$ $1.70^{+0.58}_{-0.34}$	(h)

Notes. Continuum flux densities are given in units of 10¹⁵ erg cm⁻² s⁻¹ Å⁻¹, optical luminosities are given in units of erg s⁻¹, FWHM are given in units of km s⁻¹, BH masses are given in units of M_⊙ and are inferred from Hβ widths and lags employing uniformly the scaling factor of f = 1.8, thereby ignoring individual BLR geometries. Therefore, BH masses may be underestimated and Eddington ratios may be overestimated. References: (a) Bentz et al. (2013), (b) Kollatschny et al. (2001), (c) Grier et al. (2012), (d) Denney et al. (2009), (e) Bentz et al. (2009), (f) Shapovalova et al. (2012), (g) Rafter et al. (2013), (h) Park et al. (2017). ^*Corrected for Galactic extinction adopting A_V = 0.166 from Schlafly & Finkbeiner (2011) (NED). ^†Measured from an additional SDSS spectrum. ‡Variability amplitude taken from simultaneous photometric B band observations.

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