LRD Watch DR1 · catalog object

LRDW J123722.62+621548.1

catalogSILVERmain classBH* channelcolour laneGOODS-N (JADES Medium/JWST F1); GOODS-N (JADES 1181 with FRESCO, CONGRESS, GO 4762 and GO 6434)

RA 12:37:22.629 189.3442881°

Dec +62:15:48.10 62.2633613°

SIMBAD within 2″ · ESASky

Images

F090W image, 3.2 arcsec across, north up — F090W0.03″ px

F115W image, 3.2 arcsec across, north up — F115W0.03″ px

F150W image, 3.2 arcsec across, north up — F150W0.03″ px

F200W image, 3.2 arcsec across, north up — F200W0.03″ px

F277W image, 3.2 arcsec across, north up — F277W0.06″ px

F356W image, 3.2 arcsec across, north up — F356W0.06″ px

F410M image, 3.2 arcsec across, north up — F410M0.06″ px

F444W image, 3.2 arcsec across, north up — F444W0.06″ px

Colour composite: F444W red, F356W green, F277W blue, 3.2 arcsec across, north up — compositebar 1″

3.2″ across, north up, east left, resampled from the deepest mosaic covering the object in each band; ticks mark the catalogue position. Each band is stretched on its own noise; the composite shares one flux scale, so its colour is real.

Spectral energy distribution

NIRCam wide
NIRCam medium
2σ upper limit (S/N < 2)

Aperture fluxes in a 0.16″-radius circle, not corrected to total; the values are in the photometry table below. The gold line marks the Balmer limit (3646 Å rest) at z = 5.241.

At a glance

Tier: SILVER main class
Found by: BH* channel + colour lane
Redshift: 5.24 spectroscopic
Spectral shape: no labelled spectrum
F444W: 24.16 AB S/N 409, 0.16″ aperture
F277W − F444W: 1.66 mag strict redness
BH* share: 0.96 cliff_degraaff25; Δχ² galaxy 21.5, dwarf 22.2
Compactness: growth ratio 2.030 stars 2.357
Balmer break: 3.25 ± 0.33 F335M/F210M, clean
Image vetting: half-stack pass; no flags raised
Literature: 1 catalogue(s), 6 AGN paper(s) within 0.012″

Vetting

Image vettingpassed
Half-stack testpass
Artifact risknone
Neighbournone
Extendedno

No vetting notes.

Redshifts

Each redshift keeps its own column. Photometric redshifts of little red dots are unreliable: against spectra, about a third of AGN-template redshifts (z_agn; 31 of 95 in the last purity run) and about half of galaxy-template redshifts at z > 3 were catastrophic outliers (methods Section 8).

Column	What it is	z	Source
`z_spec`	Spectroscopic, DJA grade 3	—	—
`z_vet`	Adopted by vetting	5.2410	zspec:vizier_J_A+A_691_A240_jadesgnp.csv:42590
`z_phot`	Photometric (P(z) peak)	5.234	68%: 5.129–5.312
`z_bhs`	BH* channel fit	7.948	cliff_degraaff25
`z_agn`	Colour-lane fit	5.23	AGN-inclusive templates

Spectral checks

V-shape (spectrum): no labelled spectrum
Star (spectrum): no spectrum
V-shape (photometry): passes β_UV −1.48, β_opt 2.66 at z_agn
Line in F410M: Ha 2 line-free optical band(s)
Line-ambiguous: no
Settling verdict: not evaluated

Literature

Published objects within 1″ of this position. A match is a positional recovery, not an adopted classification.

Matthee et al. (2026)
Lin+2025 GOODS-N broad-line AGN
Maiolino+2025 (X-ray weak) broad-line AGN
Matthee+2024 broad-line AGN
Scholtz+2026 (LRD/LBD BLR) broad-line AGN
Yanagisawa+2026 (ATLAS I) broad-line AGN
Zhang+2025 broad-line AGN

Photometry

Circular aperture of radius 0.16″ at each band's native resolution, background from a 0.40–0.65″ annulus, programmes combined by inverse variance. For a point source multiply by the field's aperture correction (r = 0.16″ → 0.70″). Grey rows are below S/N 2.

Band	Instrument	Pivot (µm)	f (nJy)	σ (nJy)	AB mag	S/N	Ap. corr.
F070W	NIRCam wide	0.704	5.72	3.97	29.51	1.4	1.33–1.35
F090W	NIRCam wide	0.902	28.09	2.27	27.78	12.4	1.33
F115W	NIRCam wide	1.154	35.56	1.85	27.52	19.2	1.32–1.33
F150W	NIRCam wide	1.501	36.63	2.23	27.49	16.4	1.19–1.33
F182M	NIRCam medium	1.845	47.98	4.29	27.20	11.2	1.34–1.44
F200W	NIRCam wide	1.989	51.24	2.28	27.13	22.4	1.27–1.34
F210M	NIRCam medium	2.095	50.73	5.00	27.14	10.1	1.37–1.46
F277W	NIRCam wide	2.762	169.83	1.40	25.82	121.3	1.33–1.49
F335M	NIRCam medium	3.362	164.36	2.57	25.86	63.9	1.37–1.44
F356W	NIRCam wide	3.568	221.45	1.45	25.54	152.5	1.31–1.52
F410M	NIRCam medium	4.082	1149.97	3.13	23.75	367.3	1.38–1.47
F444W	NIRCam wide	4.404	785.31	1.92	24.16	408.6	1.41–1.58

Provenance

Field: GOODS-N (JADES Medium/JWST F1); GOODS-N (JADES 1181 with FRESCO, CONGRESS, GO 4762 and GO 6434) (21323mediumjwsttrimta5v2,goods)
Programmes: 01181, 01895, 02674, 02926, 03577, 04762, 05407, 06434 behind every mosaic the field measured
Pipeline rows merged: 3 largest separation 0.027″
Detection pass: original
Release build: 33af9933d1cc 2026-10-17T14:29:44Z

Image sources

Band	Mosaic	Native pixel	Coverage
F090W	`jw01181-o098_t010_nircam_clear-f090w_i2d.fits`	0.031″	1.00
F115W	`jw01181-o098_t010_nircam_clear-f115w_i2d.fits`	0.031″	1.00
F150W	`jw01181-o098_t010_nircam_clear-f150w_i2d.fits`	0.031″	1.00
F200W	`jw01181-o098_t010_nircam_clear-f200w_i2d.fits`	0.031″	1.00
F277W	`jw01181-o098_t010_nircam_clear-f277w_i2d.fits`	0.063″	1.00
F356W	`jw01181-o098_t010_nircam_clear-f356w_i2d.fits`	0.063″	1.00
F410M	`jw01181-o098_t010_nircam_clear-f410m_i2d.fits`	0.063″	1.00
F444W	`jw01181-o098_t010_nircam_clear-f444w_i2d.fits`	0.063″	1.00

Cite

Anderson, Jordan (2026). LRD Watch DR1: little red dot candidates from an independent search of public JWST imaging (Version DR1) [Data set]. Cerin Amroth Research. Zenodo. https://doi.org/10.5281/zenodo.23062632 Object LRDW J123722.62+621548.1.

CC BY 4.0. Please also acknowledge the JWST programmes that took the data. LRD Watch DR1 is a vetted candidate catalogue, not a complete census: it has no selection function and cannot on its own give number densities. About the release.