On the redshift of the bright BL Lacertae object PKS 0048-097

Free Access

Table 2

Measurements of spectral lines observed (referred to the mean spectrum of each arm).

Line ID^a	Observed λ^b	z^c	Observed FWHM^d	Observed EW^e	Notes^f
	[Å]		[km s^-1]	[Å]

Mg II2796.35	3228.20 ± 0.20	0.1544 ± 0.0001		0.59 ± 0.16	absorption (abs.)
Mg II2803.53	3236.60 ± 0.20	0.1544 ± 0.0001		0.45 ± 0.12	abs.
[O II] 3727.40	6096.20 ± 1	0.635 ± 0.0004	680 ± 100	0.79 ± 0.39	emission (em.)
[O III] 5006.84	8189.20 ± 1	0.635 ± 0.0004	400 ± 100	0.92 ± 0.44	em. (polluted by telluric absorption)
Hα6562.80	10 751.10 ± 5	0.638 ± 0.001	1900 ± 130	3.00 ± 1.20	em.

Notes. The observed λ column is referred to the barycenter of the line.

^(a)

Line identification and rest frame wavelength (in Å).

^(b)

Observed wavelength on the spectra (in Å).

^(c)

Redshift inferred from the line.

^(d)

Observed full width at half maximum of the line (in kilometers per second).

^(e)

Observed equivalent width (in Å).

^(f)

Notes on the identification of the spectral feature.

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.