LRD Watch DR1 · catalog object
LRDW J141955.93+525721.5
Images








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
- NIRCam wide
- NIRCam medium
- 2σ upper limit (S/N < 2)
At a glance
- Tier
- TENTATIVE
- Found by
- BH* channel
- Redshift
- 6.989 DJA grade 3, PRISM
- Spectral shape
- V-shaped de Graaff+25 criteria
- F444W
- 24.51 AB S/N 180, 0.16″ aperture
- F277W − F444W
- not in the colour lane
- BH* share
- 0.71 mom_naidu25; Δχ² galaxy 20.6, dwarf 89.0
- Compactness
- growth ratio 1.757 stars 2.320
- Balmer break
- 4.02 ± 0.15 F360M/F200W, blue:far-uv
- Image vetting
- half-stack pass; 1 flag(s)
- Literature
- 5 catalogue(s), 5 AGN paper(s) within 0.031″
Vetting
- Image vettingnot applicable
- Half-stack testpass
- Artifact risknone
- Neighbourflagged
- Extendedno
- BH* channelBH* share 0.71 below 0.8 (composite)
- BH* channelneighbor-contam footprint-overlap id 6386 at 1.37" (npix=1298, r_eq=1.28")
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 | 6.9886 | rubies-egs61-v4_prism-clear_4233_55604.spec.fits |
z_vet | Adopted by vetting | 6.9886 | zspec:dja:rubies-egs61-v4_prism-clear_4233_55604.spec.fits (pipeline z_vet 6.982 from zspec:vizier_J_A+A_691_A240_ceersp.csv:73166) |
z_phot | Photometric (P(z) peak) | 7.584 | 68%: 7.402–7.984 |
z_bhs | BH* channel fit | 7.185 | mom_naidu25 |
z_agn | Colour-lane fit | — | — |
Spectral checks
- V-shape (spectrum)
- V-shaped
- Star (spectrum)
- no
- V-shape (photometry)
- not measurable βUV not measured, βopt not measured at z_agn
- Line in F410M
- Hb, OIII 3 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.
- Barro et al. (2025)
- de Graaff et al. (2025)
- Kocevski et al. (2024)
- Kokorev et al. (2024)
- Matthee et al. (2026)
- Baccus+2026 (DJA census) broad-line AGN
- Hviding+2025 broad-line AGN
- Jones+2025 broad-line AGN
- Wang+2024 (RUBIES z~7-8) broad-line AGN
- Yanagisawa+2026 (ATLAS I) 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. |
|---|---|---|---|---|---|---|---|
| F115W | NIRCam wide | 1.154 | 38.53 | 3.28 | 27.43 | 11.7 | 1.42 |
| F150W | NIRCam wide | 1.501 | 69.08 | 3.58 | 26.80 | 19.3 | 1.41 |
| F162M | NIRCam medium | 1.627 | 71.16 | 4.68 | 26.77 | 15.2 | 1.40 |
| F200W | NIRCam wide | 1.989 | 81.44 | 2.81 | 26.62 | 29.0 | 1.41 |
| F277W | NIRCam wide | 2.762 | 122.33 | 2.41 | 26.18 | 50.7 | 1.54 |
| F300M | NIRCam medium | 2.990 | 134.79 | 4.74 | 26.08 | 28.4 | 1.57 |
| F356W | NIRCam wide | 3.568 | 377.15 | 2.71 | 24.96 | 139.3 | 1.58 |
| F360M | NIRCam medium | 3.624 | 327.09 | 4.41 | 25.11 | 74.2 | 1.62 |
| F410M | NIRCam medium | 4.082 | 657.54 | 5.22 | 24.36 | 125.8 | 1.63 |
| F430M | NIRCam medium | 4.281 | 446.28 | 7.30 | 24.78 | 61.2 | 1.63 |
| F444W | NIRCam wide | 4.404 | 568.53 | 3.15 | 24.51 | 180.2 | 1.65 |
| F460M | NIRCam medium | 4.630 | 523.27 | 9.95 | 24.60 | 52.6 | 1.68 |
Provenance
- Field
- EGS (CEERS pointing 1) (
miri1) - Programmes
01345, 07814, 08559behind every mosaic the field measured- Pipeline rows merged
- 1 all at one position
- Detection pass
- original
- Release build
33af9933d1cc2026-10-17T14:29:44Z
Image sources
| Band | Mosaic | Native pixel | Coverage |
|---|---|---|---|
| F115W | jw01345-o001_t021_nircam_clear-f115w_i2d.fits | 0.031″ | 1.00 |
| F150W | jw01345-o001_t021_nircam_clear-f150w_i2d.fits | 0.031″ | 1.00 |
| F200W | jw01345-o001_t021_nircam_clear-f200w_i2d.fits | 0.031″ | 1.00 |
| F277W | jw01345-o001_t021_nircam_clear-f277w_i2d.fits | 0.063″ | 1.00 |
| F356W | jw01345-o001_t021_nircam_clear-f356w_i2d.fits | 0.063″ | 1.00 |
| F410M | jw01345-o001_t021_nircam_clear-f410m_i2d.fits | 0.063″ | 1.00 |
| F444W | jw01345-o001_t021_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 J141955.93+525721.5.
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.