LRD Watch DR1 · catalog object
LRDW J141943.08+525316.4
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, F277W.
Spectral energy distribution
- NIRCam wide
- NIRCam medium
- 2σ upper limit (S/N < 2)
At a glance
- Tier
- SILVER main class
- Found by
- BH* channel
- Redshift
- 7.153 DJA grade 3, PRISM
- Spectral shape
- V-shaped de Graaff+25 criteria
- F444W
- 26.62 AB S/N 33, 0.16″ aperture
- F277W − F444W
- not in the colour lane
- BH* share
- 0.89 bhs_bb4200_b8; Δχ² galaxy 4.0, dwarf 0.3
- Compactness
- growth ratio 1.694 stars 2.251
- Balmer break
- 14.47 (lower limit) F430M/F200W, blue:far-uv+blue:2sig-limit
- Image vetting
- half-stack pass; no flags raised
- Literature
- 3 catalogue(s), 3 AGN paper(s) within 0.012″
Vetting
- Image vettingpassed
- Half-stack testpass
- Artifact risknone
- Neighbournone
- Extendedno
- BH* channelevidence dchi2_gal=4.0 dchi2_bd=0.3
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 | 7.1529 | capers-egs65-v4_prism-clear_6368_14197.spec.fits |
z_vet | Adopted by vetting | 7.1529 | zspec:dja:capers-egs65-v4_prism-clear_6368_14197.spec.fits (pipeline z_vet 7.156 from zspec:vizier_J_A+A_691_A240_ceersp.csv:49381) |
z_phot | Photometric (P(z) peak) | — | not fitted |
z_bhs | BH* channel fit | 7.280 | bhs_bb4200_b8 |
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 1 line-free optical band(s)
- Line-ambiguous
- yes
- Settling verdict
- LRD-like continuum
Literature
Published objects within 1″ of this position. A match is a positional recovery, not an adopted classification.
- de Graaff et al. (2025)
- Kocevski et al. (2024)
- Weibel et al. (2026), BH*-dominated sample
- Baccus+2026 (DJA census) broad-line AGN
- Hviding+2025 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 | 6.27 | 3.78 | 29.41 | 1.7 | 1.41 |
| F150W | NIRCam wide | 1.501 | 3.72 | 2.94 | 29.97 | 1.3 | 1.38 |
| F162M | NIRCam medium | 1.627 | 10.52 | 4.29 | 28.84 | 2.5 | 1.33 |
| F182M | NIRCam medium | 1.845 | 7.01 | 3.48 | 29.29 | 2.0 | 1.36 |
| F200W | NIRCam wide | 1.989 | 3.84 | 2.47 | 29.94 | 1.6 | 1.44 |
| F356W | NIRCam wide | 3.568 | 37.87 | 1.61 | 27.45 | 23.5 | 1.53 |
| F410M | NIRCam medium | 4.082 | 83.24 | 3.29 | 26.60 | 25.3 | 1.55 |
| F430M | NIRCam medium | 4.281 | 71.56 | 5.88 | 26.76 | 12.2 | 1.62 |
| F444W | NIRCam wide | 4.404 | 81.73 | 2.46 | 26.62 | 33.3 | 1.60 |
Provenance
- Field
- EGS (CEERS NIRSpec P5) (
ceersnirspecp5mrmsata) - Programmes
01345, 02279, 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-o064_t044_nircam_clear-f115w_i2d.fits | 0.031″ | 1.00 |
| F150W | jw01345-o064_t044_nircam_clear-f150w_i2d.fits | 0.031″ | 1.00 |
| F200W | jw01345-o064_t044_nircam_clear-f200w_i2d.fits | 0.031″ | 1.00 |
| F356W | jw01345-o064_t044_nircam_clear-f356w_i2d.fits | 0.063″ | 1.00 |
| F410M | jw01345-o064_t044_nircam_clear-f410m_i2d.fits | 0.063″ | 1.00 |
| F444W | jw01345-o064_t044_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 J141943.08+525316.4.
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.