Shedding the envelope: JWST reveals a kiloparsec-scale [O III]-weak Balmer shell around a z = 7.64 quasar

Open Access

Table 1.

Results of spectral fitting for J0313–1806.

Quantity	Units	Value
FWHM $_{H β}^{(1)}$ $Mathematical equation: $ _{\mathrm{H}\beta}^{(1)} $$	km s⁻¹	4156 ± 68
$L_{5100}^{(2)}$ $Mathematical equation: $ L_{5100}^{(2)} $$	erg s⁻¹	(1.77 ± 0.18)×10⁴⁶
EW(Hβ)⁽³⁾	Å	53.18 ± 0.31
EW([O III])⁽⁴⁾	Å	< 1.42
EW([Fe II])⁽⁵⁾	Å	38.46 ± 0.02
F([O III]})⁽⁶⁾	erg s⁻¹ cm⁻²	< 2.39 × 10⁻¹⁸
$M_{BH, H β}^{(7)}$ $Mathematical equation: $ M_{\mathrm{BH,H}\beta}^{(7)} $$	M_⊙	(1.63 ± 0.10)×10⁹
L_bol⁽⁸⁾	erg s⁻¹	(1.64 ± 0.16)×10⁴⁷
L_bol/L_Edd⁽⁹⁾	–	0.80 ± 0.05

Notes. (1) FWHM of the broad Hβ line; (2) monochromatic luminosity at 5100 Å; (3) EW of the broad Hβ line; (4) 3σ upper limit on the EW of [O III] λ5007; (5) EW of the Fe II blend at 4434–4684 Å; (6) 3σ upper limit on the flux of [O III] λ5007; (7) black hole mass derived based on Shen et al. (2024); (8) bolometric luminosity based on Richards et al. (2006); (9) Eddington rate.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.