Estimating masses of supermassive black holes in active galactic nuclei from the Hα emission line

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Table 3.

Comparison of SE estimates with GRAVITY measurements.

	log(M/M_⊙)		log(M/M_⊙)
Source	(GRAVITY)	Ref.	(SE)	Line	Ref.
(1)	(2)	(3)	(4)	(5)	(6)
IRAS 09149−6206	$8 . 06_{- 0.57}^{+ 0.41}$ $8.06^{+0.41}_{-0.57}$	1	8.331 ± 0.377	Hβ	5
Mrk 1239	7.47 ± 0.92	2	7.518 ± 0.377	Hβ	6
NGC 3783	$7 . 68_{- 0.43}^{+ 0.45}$ $7.68^{+0.45}_{-0.43}$	3	7.551 ± 0.372	Hβ	7
3C 273	8.41 ± 0.18	4	9.403 ± 0.328	Hα	8
			9.383 ± 0.372	Hβ	8
			9.335 ± 0.372	Hβ	9
IC 4329A	$7 . 15_{- 0.26}^{+ 0.38}$ $7.15^{+0.38}_{-0.26}$	2	7.563 ± 0.373	Hβ	10
			7.560 ± 0.372	Hβ	11,12
			8.484 ± 0.372	Hβ	6
PDS 456	$8 . 23_{- 0.49}^{+ 0.01}$ $8.23^{+0.01}_{-0.49}$	2	9.784 ± 0.354	Hα	13
			9.358 ± 0.389	Hβ	13,14
			9.715 ± 0.373	Hβ	6
Mrk 509	$8 . 00_{- 0.23}^{+ 0.06}$ $8.00^{+0.06}_{-0.23}$	2	8.419 ± 0.333	Hα	15
			8.510 ± 0.377	Hβ	15
			8.409 ± 0.373	Hβ	6

Notes. (1) GRAVITY Collaboration (2020); (2) GRAVITY Collaboration (2024); (3) GRAVITY Collaboration (2021a); (4) GRAVITY Collaboration (2018); (5) Pérez et al. (1989); (6) Li et al. (2024); (7) Bentz et al. (2021); (8) Kaspi et al. (2000); (9) Zhang et al. (2019); (10) Bentz et al. (2023); (11) Winge et al. (1996); (12) Collin et al. (2006); (13) Simpson et al. (1999); (14) Torres et al. (1997); (15) Osterbrock (1977).

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