LRD Watch DR1 · catalog object

LRDW J041613.49-240648.7

catalogTENTATIVEBH* channelMACS J0416.1-2403

RA 04:16:13.497 64.0562383°

Dec −24:06:48.72 -24.1135323°

Images

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

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

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. No coverage in F090W, F115W, F200W, F277W, F356W, F410M.

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 = 5.007.

At a glance

Tier: TENTATIVE
Found by: BH* channel
Redshift: 5.007 DJA grade 3, PRISM
Spectral shape: inconclusive de Graaff+25 criteria
F444W: 26.08 AB S/N 34, 0.16″ aperture
F277W − F444W: not in the colour lane
BH* share: 0.92 mom_naidu25; Δχ² galaxy 1.1, dwarf 12.8
Compactness: growth ratio 1.672 stars 2.377
Balmer break: 6.85 (lower limit) F300M/F210M, red:Hb+OIII+blue:2sig-limit
Image vetting: half-stack pass; no flags raised
Literature: 1 catalogue(s), 1 AGN paper(s) within 0.022″

Vetting

Image vettingnot applicable
Half-stack testpass
Artifact risknone
Neighbournone
Extendedno

BH* channelevidence dchi2_gal=1.1 dchi2_bd=12.8

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	5.0068	macs0416-v4_prism-clear_1208_3104035.spec.fits
`z_vet`	Adopted by vetting	5.0068	zspec:dja_specz_grade3.csv:3104035
`z_phot`	Photometric (P(z) peak)	—	not fitted
`z_bhs`	BH* channel fit	5.017	mom_naidu25
`z_agn`	Colour-lane fit	—	—

Spectral checks

V-shape (spectrum): inconclusive
Star (spectrum): no
V-shape (photometry): not measurable β_UV not measured, β_opt not measured at z_agn
Line in F410M: Ha 0 line-free optical band(s)
Line-ambiguous: yes
Settling verdict: not evaluated

Literature

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

de Graaff et al. (2025)
Baccus+2026 (DJA census) 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.
F150W	NIRCam wide	1.501	12.76	1.11	28.64	11.5	1.30–1.36
F210M	NIRCam medium	2.095	11.46	6.79	28.75	1.7	1.35
F300M	NIRCam medium	2.990	93.01	4.87	26.48	19.1	1.48
F444W	NIRCam wide	4.404	134.47	4.02	26.08	33.5	1.57–1.64

Provenance

Field: MACS J0416.1-2403 (mj04161x)
Programmes: 01176, 05578, 05890, 06882 behind every mosaic the field measured
Pipeline rows merged: 1 all at one position
Detection pass: original
Release build: 33af9933d1cc 2026-10-17T14:29:44Z

Image sources

Band	Mosaic	Native pixel	Coverage
F150W	`jw05890-o002_t002_nircam_clear-f150w_i2d.fits`	0.031″	1.00
F444W	`jw06882-o054_t054_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 J041613.49-240648.7.

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.