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CTS 22

Observation

Spectrum ID98508726_sp1
Alt nameg1321582-310426
z0.0454
RA, Dec200.4925, -31.0737
MJD60079.48
SNR/Å B/R1.8/2.1
Obs Airmass1.01
SMSS ID98508726
Closest SMSS5.43'', 2160698816
SMSS Mean r6"ap16.0 ± 0.1
2MASS Kext12.5 ± 0.1

AGN Properties

Spectrum TypeBad
Quality Flagbad_blue
AGN reference6dFGS
MW E(B−V)0.060
Power law αν-0.06 ± 0.11
log L5100,AGN42.33 ± 0.06
log HβBr/[O III]0.04 ± 0.16
log ML5100/M6.35 ± 0.05
log M/M6.16 ± 0.07
log M/M6.11 ± 0.09
log M[O III]/M6.18 ± 0.09

Spatial extraction & sky subtraction region

Spatial plot

Spaxel scale: 1 arcsec² — Flux units: erg s⁻¹ cm⁻² Å⁻¹
Apertures: object (solid), background (dashed)

Spectrum decomposition

Emission line measurements

Linelog L (erg s⁻¹)FWHM (km s⁻¹)σ (km s⁻¹)EW (Å)
Hγ Narrow
Hγ Broad
[O III] 4364
He II Narrow
He II Broad
Hβ Narrow
Hβ Broad40.02 ± 0.121210 ± 35420 ± 2521.43 ± 3.33
[O III] 500739.98 ± 0.11296 ± 151407 ± 2722.22 ± 3.23
He I Narrow
He I Broad
[O I] 6300
Hα Narrow39.19 ± 0.27176 ± 6272 ± 256.11 ± 2.23
Hα Broad40.72 ± 0.021640 ± 77624 ± 25206.54 ± 5.97
[N II] 658539.25 ± 0.16176 ± 6272 ± 256.93 ± 1.95
[S II] 6718
[S II] 6732

All narrow line widths are tied to narrow [O III] 5007Å. [O III] 5007Å and narrow Hβ include a second narrow component not tied to other narrow lines.

Emission summary

Hα Broad SNR3.64
Hβ Broad SNR1.34
Hγ Broad SNR0.00
AGN frac0.70
Host frac0.30
log L5100,Host41.95
Fe II/Hβ1.85
Fe II/[O III]1.89

Quality flags

spurious_hab/hbb0.0/0
l51000
balmer1
balmer_snr2
hb_width0
balmer_width2

Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.