CERIN AMROTH · RESEARCH

LRD Watch DR1 · catalog object

LRDW J141924.13+525157.6

catalogTENTATIVEBH* channelEGS (CEERS pointing 3)
RA 14:19:24.139 214.8505804°
Dec +52:51:57.68 52.8660226°

Images

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. No coverage in F090W.

Spectral energy distribution

11.5234513103010030010003000400050006000800010000Balmer limitrest frame (Å) at z = 3.650, spectroscopicobserved wavelength (µm)flux density (nJy)
  • 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 = 3.650.

At a glance

Tier
TENTATIVE
Found by
BH* channel
Redshift
3.650 DJA grade 3, PRISM
Spectral shape
inconclusive de Graaff+25 criteria
F444W
23.40 AB S/N 390, 0.16″ aperture
F277W − F444W
not in the colour lane
BH* share
0.67 cliff_degraaff25; Δχ² galaxy 4.3, dwarf 154.1
Compactness
growth ratio 2.250 stars 2.257
Balmer break
4.79 ± 0.21 F200W/F150W, clean
Image vetting
half-stack pass; 1 flag(s)
Literature
0 catalogue(s), 6 AGN paper(s) within 0.032″

Vetting

  • Image vettingnot applicable
  • Half-stack testpass
  • Artifact risknone
  • Neighbourflagged
  • Extendedno
  • BH* channelevidence dchi2_gal=4.3 dchi2_bd=154.1
  • BH* channelBH* share 0.67 below 0.8 (composite)
  • BH* channelneighbor-contam footprint-overlap id 5989 at 1.43" (npix=2207, r_eq=1.67")

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).

ColumnWhat it iszSource
z_specSpectroscopic, DJA grade 33.6501glazebrook-egs-v4_prism-clear_2565_118854.spec.fits
z_vetAdopted by vetting3.6501zspec:dja:glazebrook-egs-v4_prism-clear_2565_118854.spec.fits (pipeline z_vet 3.649 from zspec:vizier_J_A+A_691_A240_ceersp.csv:70720)
z_photPhotometric (P(z) peak)—not fitted
z_bhsBH* channel fit2.918cliff_degraaff25
z_agnColour-lane fit——

Spectral checks

V-shape (spectrum)
inconclusive
Star (spectrum)
no
V-shape (photometry)
not measurable βUV not measured, βopt not measured at z_agn
Line in F410M
none 1 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.

  • Baccus+2026 (DJA census) broad-line AGN
  • Hviding+2025 broad-line AGN
  • Jones+2025 broad-line AGN
  • Rusakov+2026 broad-line AGN
  • Scholtz+2026 (LRD/LBD BLR) broad-line AGN
  • Taylor+2025 (CEERS/RUBIES) 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.

BandInstrumentPivot (µm)f (nJy)σ (nJy)AB magS/NAp. corr.
F115WNIRCam wide1.15418.163.0728.255.91.35
F150WNIRCam wide1.50180.783.3726.6324.01.34
F200WNIRCam wide1.989386.554.0024.9396.61.35
F277WNIRCam wide2.762944.273.7423.96252.71.44
F335MNIRCam medium3.3621116.597.2523.78154.01.49
F356WNIRCam wide3.5681183.943.9723.72298.51.51
F360MNIRCam medium3.6241219.317.3723.68165.51.50
F410MNIRCam medium4.0821441.456.8923.50209.11.53
F444WNIRCam wide4.4041588.924.0823.40389.81.58

Provenance

Field
EGS (CEERS pointing 3) (miri3)
Programmes
01345, 08559 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

BandMosaicNative pixelCoverage
F115Wjw01345-o003_t023_nircam_clear-f115w_i2d.fits0.031″1.00
F150Wjw01345-o003_t023_nircam_clear-f150w_i2d.fits0.031″1.00
F200Wjw01345-o003_t023_nircam_clear-f200w_i2d.fits0.031″1.00
F277Wjw01345-o003_t023_nircam_clear-f277w_i2d.fits0.063″1.00
F356Wjw01345-o003_t023_nircam_clear-f356w_i2d.fits0.063″1.00
F410Mjw01345-o003_t023_nircam_clear-f410m_i2d.fits0.063″1.00
F444Wjw01345-o003_t023_nircam_clear-f444w_i2d.fits0.063″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 J141924.13+525157.6.

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.